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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Fixes to bugs that are interfering with arm64 and risc workflows. Also
two fixes to timer and mincore tests that are causing test failures"
* tag 'linux-kselftest-fixes-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/arm64: fix build failure during the "emit_tests" step
selftests/riscv: fix potential build failure during the "emit_tests" step
tools: timers: fix freq average calculation
selftests/mincore: fix skip condition for check_huge_pages test
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The build failure reported in [1] occurred because commit <9fc96c7c19df>
("selftests: error out if kernel header files are not yet built") added
a new "kernel_header_files" dependency to "all", and that triggered
another, pre-existing problem. Specifically, the arm64 selftests
override the emit_tests target, and that override improperly declares
itself to depend upon the "all" target.
This is a problem because the "emit_tests" target in lib.mk was not
intended to be overridden. emit_tests is a very simple, sequential build
target that was originally invoked from the "install" target, which in
turn, depends upon "all".
That approach worked for years. But with 9fc96c7c19df in place,
emit_tests failed, because it does not set up all of the elaborate
things that "install" does. And that caused the new
"kernel_header_files" target (which depends upon $(KBUILD_OUTPUT) being
correct) to fail.
Some detail: The "all" target is .PHONY. Therefore, each target that
depends on "all" will cause it to be invoked again, and because
dependencies are managed quite loosely in the selftests Makefiles, many
things will run, even "all" is invoked several times in immediate
succession. So this is not a "real" failure, as far as build steps go:
everything gets built, but "all" reports a problem when invoked a second
time from a bad environment.
To fix this, simply remove the unnecessary "all" dependency from the
overridden emit_tests target. The dependency is still effectively
honored, because again, invocation is via "install", which also depends
upon "all".
An alternative approach would be to harden the emit_tests target so that
it can depend upon "all", but that's a lot more complicated and hard to
get right, and doesn't seem worth it, especially given that emit_tests
should probably not be overridden at all.
[1] https://lore.kernel.org/20230710-kselftest-fix-arm64-v1-1-48e872844f25@kernel.org
Fixes: 9fc96c7c19df ("selftests: error out if kernel header files are not yet built")
Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The riscv selftests (which were modeled after the arm64 selftests) are
improperly declaring the "emit_tests" target to depend upon the "all"
target. This approach, when combined with commit 9fc96c7c19df
("selftests: error out if kernel header files are not yet built"), has
caused build failures [1] on arm64, and is likely to cause similar
failures for riscv.
To fix this, simply remove the unnecessary "all" dependency from the
emit_tests target. The dependency is still effectively honored, because
again, invocation is via "install", which also depends upon "all".
An alternative approach would be to harden the emit_tests target so that
it can depend upon "all", but that's a lot more complicated and hard to
get right, and doesn't seem worth it, especially given that emit_tests
should probably not be overridden at all.
[1] https://lore.kernel.org/20230710-kselftest-fix-arm64-v1-1-48e872844f25@kernel.org
Fixes: 9fc96c7c19df ("selftests: error out if kernel header files are not yet built")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Delete a duplicate assignment from this function implementation.
The note means ppm is average of the two actual freq samples.
But ppm have a duplicate assignment.
Signed-off-by: Minjie Du <duminjie@vivo.com>
Acked-by: John Stultz <jstultz@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The check_huge_pages test was failing instead of skipping on qemu-armv7
because the skip condition wasn't handled properly. Add an additional
check to fix it.
Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Closes: https://lore.kernel.org/all/CA+G9fYuoB8Ug8PcTU-YGmemL7_eeEksXFihvxWF6OikD7sK7pA@mail.gmail.com
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Borislav Petkov:
- Mark copy_iovec_from_user() __noclone in order to prevent gcc from
doing an inter-procedural optimization and confuse objtool
- Initialize struct elf fully to avoid build failures
* tag 'objtool_urgent_for_v6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
iov_iter: Mark copy_iovec_from_user() noclone
objtool: initialize all of struct elf
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Function elf_open_read() only zero initializes the initial part of
allocated struct elf; num_relocs member was recently added outside the
zeroed part so that it was left uninitialized, resulting in build failures
on some systems.
The partial initialization is a relic of times when struct elf had large
hash tables embedded. This is no longer the case so remove the trap and
initialize the whole structure instead.
Fixes: eb0481bbc4ce ("objtool: Fix reloc_hash size")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20230629102051.42E8360467@lion.mk-sys.cz
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter, wireless and ebpf.
Current release - regressions:
- netfilter: conntrack: gre: don't set assured flag for clash entries
- wifi: iwlwifi: remove 'use_tfh' config to fix crash
Previous releases - regressions:
- ipv6: fix a potential refcount underflow for idev
- icmp6: ifix null-ptr-deref of ip6_null_entry->rt6i_idev in
icmp6_dev()
- bpf: fix max stack depth check for async callbacks
- eth: mlx5e:
- check for NOT_READY flag state after locking
- fix page_pool page fragment tracking for XDP
- eth: igc:
- fix tx hang issue when QBV gate is closed
- fix corner cases for TSN offload
- eth: octeontx2-af: Move validation of ptp pointer before its usage
- eth: ena: fix shift-out-of-bounds in exponential backoff
Previous releases - always broken:
- core: prevent skb corruption on frag list segmentation
- sched:
- cls_fw: fix improper refcount update leads to use-after-free
- sch_qfq: account for stab overhead in qfq_enqueue
- netfilter:
- report use refcount overflow
- prevent OOB access in nft_byteorder_eval
- wifi: mt7921e: fix init command fail with enabled device
- eth: ocelot: fix oversize frame dropping for preemptible TCs
- eth: fec: recycle pages for transmitted XDP frames"
* tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
selftests: tc-testing: add test for qfq with stab overhead
net/sched: sch_qfq: account for stab overhead in qfq_enqueue
selftests: tc-testing: add tests for qfq mtu sanity check
net/sched: sch_qfq: reintroduce lmax bound check for MTU
wifi: cfg80211: fix receiving mesh packets without RFC1042 header
wifi: rtw89: debug: fix error code in rtw89_debug_priv_send_h2c_set()
net: txgbe: fix eeprom calculation error
net/sched: make psched_mtu() RTNL-less safe
net: ena: fix shift-out-of-bounds in exponential backoff
netdevsim: fix uninitialized data in nsim_dev_trap_fa_cookie_write()
net/sched: flower: Ensure both minimum and maximum ports are specified
MAINTAINERS: Add another mailing list for QUALCOMM ETHQOS ETHERNET DRIVER
docs: netdev: update the URL of the status page
wifi: iwlwifi: remove 'use_tfh' config to fix crash
xdp: use trusted arguments in XDP hints kfuncs
bpf: cpumap: Fix memory leak in cpu_map_update_elem
wifi: airo: avoid uninitialized warning in airo_get_rate()
octeontx2-pf: Add additional check for MCAM rules
net: dsa: Removed unneeded of_node_put in felix_parse_ports_node
net: fec: use netdev_err_once() instead of netdev_err()
...
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A packet with stab overhead greater than QFQ_MAX_LMAX should be dropped
by the QFQ qdisc as it can't handle such lengths.
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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QFQ only supports a certain bound of MTU size so make sure
we check for this requirement in the tests.
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Use the bpf_timer_set_callback helper to mark timer_cb as an async
callback, and put a direct call to timer_cb in the main subprog.
As the check_stack_max_depth happens after the do_check pass, the order
does not matter. Without the previous fix, the test passes successfully.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20230705144730.235802-3-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix some missing-prototype warnings
- Fix user events struct args (did not include size of struct)
When creating a user event, the "struct" keyword is to denote that
the size of the field will be passed in. But the parsing failed to
handle this case.
- Add selftest to struct sizes for user events
- Fix sample code for direct trampolines.
The sample code for direct trampolines attached to handle_mm_fault().
But the prototype changed and the direct trampoline sample code was
not updated. Direct trampolines needs to have the arguments correct
otherwise it can fail or crash the system.
- Remove unused ftrace_regs_caller_ret() prototype.
- Quiet false positive of FORTIFY_SOURCE
Due to backward compatibility, the structure used to save stack
traces in the kernel had a fixed size of 8. This structure is
exported to user space via the tracing format file. A change was made
to allow more than 8 functions to be recorded, and user space now
uses the size field to know how many functions are actually in the
stack.
But the structure still has size of 8 (even though it points into the
ring buffer that has the required amount allocated to hold a full
stack.
This was fine until the fortifier noticed that the
memcpy(&entry->caller, stack, size) was greater than the 8 functions
and would complain at runtime about it.
Hide this by using a pointer to the stack location on the ring buffer
instead of using the address of the entry structure caller field.
- Fix a deadloop in reading trace_pipe that was caused by a mismatch
between ring_buffer_empty() returning false which then asked to read
the data, but the read code uses rb_num_of_entries() that returned
zero, and causing a infinite "retry".
- Fix a warning caused by not using all pages allocated to store ftrace
functions, where this can happen if the linker inserts a bunch of
"NULL" entries, causing the accounting of how many pages needed to be
off.
- Fix histogram synthetic event crashing when the start event is
removed and the end event is still using a variable from it
- Fix memory leak in freeing iter->temp in tracing_release_pipe()
* tag 'trace-v6.5-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Fix memory leak of iter->temp when reading trace_pipe
tracing/histograms: Add histograms to hist_vars if they have referenced variables
tracing: Stop FORTIFY_SOURCE complaining about stack trace caller
ftrace: Fix possible warning on checking all pages used in ftrace_process_locs()
ring-buffer: Fix deadloop issue on reading trace_pipe
tracing: arm64: Avoid missing-prototype warnings
selftests/user_events: Test struct size match cases
tracing/user_events: Fix struct arg size match check
x86/ftrace: Remove unsued extern declaration ftrace_regs_caller_ret()
arm64: ftrace: Add direct call trampoline samples support
samples: ftrace: Save required argument registers in sample trampolines
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The self tests for user_events currently does not ensure that the edge
case for struct types work properly with size differences.
Add cases for mis-matching struct names and sizes to ensure they work
properly.
Link: https://lkml.kernel.org/r/20230629235049.581-3-beaub@linux.microsoft.com
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Benjamin Tissoires:
- AMD SFH shift-out-of-bounds fix (Basavaraj Natikar)
- avoid struct memcpy overrun warning in the hid-hyperv module (Arnd
Bergmann)
- a quick HID kselftests script fix for our CI to be happy (Benjamin
Tissoires)
- various fixes and additions of device IDs
* tag 'for-linus-2023071101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: amd_sfh: Fix for shift-out-of-bounds
HID: amd_sfh: Rename the float32 variable
HID: input: fix mapping for camera access keys
HID: logitech-hidpp: Add wired USB id for Logitech G502 Lightspeed
HID: nvidia-shield: Pack inner/related declarations in HOSTCMD reports
HID: hyperv: avoid struct memcpy overrun warning
selftests: hid: fix vmtests.sh not running make headers
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According to commit 01d6c48a828b ("Documentation: kselftest:
"make headers" is a prerequisite"), running the kselftests requires
to run "make headers" first.
Do that in "vmtest.sh" as well to fix the HID CI.
Link: https://lore.kernel.org/r/20230709-fix-selftests-v1-1-57d0878114cc@kernel.org
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next
Pull more perf tools updates from Namhyung Kim:
"These are remaining changes and fixes for this cycle.
Build:
- Allow generating vmlinux.h from BTF using `make GEN_VMLINUX_H=1`
and skip if the vmlinux has no BTF.
- Replace deprecated clang -target xxx option by --target=xxx.
perf record:
- Print event attributes with well known type and config symbols in
the debug output like below:
# perf record -e cycles,cpu-clock -C0 -vv true
<SNIP>
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0 (PERF_COUNT_HW_CPU_CYCLES)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 1 (PERF_TYPE_SOFTWARE)
size 136
config 0 (PERF_COUNT_SW_CPU_CLOCK)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
- Update AMD IBS event error message since it now support per-process
profiling but no priviledge filters.
$ sudo perf record -e ibs_op//k -C 0
Error:
AMD IBS doesn't support privilege filtering. Try again without
the privilege modifiers (like 'k') at the end.
perf lock contention:
- Support CSV style output using -x option
$ sudo perf lock con -ab -x, sleep 1
# output: contended, total wait, max wait, avg wait, type, caller
19, 194232, 21415, 10222, spinlock, process_one_work+0x1f0
15, 162748, 23843, 10849, rwsem:R, do_user_addr_fault+0x40e
4, 86740, 23415, 21685, rwlock:R, ep_poll_callback+0x2d
1, 84281, 84281, 84281, mutex, iwl_mvm_async_handlers_wk+0x135
8, 67608, 27404, 8451, spinlock, __queue_work+0x174
3, 58616, 31125, 19538, rwsem:W, do_mprotect_pkey+0xff
3, 52953, 21172, 17651, rwlock:W, do_epoll_wait+0x248
2, 30324, 19704, 15162, rwsem:R, do_madvise+0x3ad
1, 24619, 24619, 24619, spinlock, rcu_core+0xd4
- Add --output option to save the data to a file not to be interfered
by other debug messages.
Test:
- Fix event parsing test on ARM where there's no raw PMU nor supports
PERF_PMU_CAP_EXTENDED_HW_TYPE.
- Update the lock contention test case for CSV output.
- Fix a segfault in the daemon command test.
Vendor events (JSON):
- Add has_event() to check if the given event is available on system
at runtime. On Intel machines, some transaction events may not be
present when TSC extensions are disabled.
- Update Intel event metrics.
Misc:
- Sort symbols by name using an external array of pointers instead of
a rbtree node in the symbol. This will save 16-bytes or 24-bytes
per symbol whether the sorting is actually requested or not.
- Fix unwinding DWARF callstacks using libdw when --symfs option is
used"
* tag 'perf-tools-for-v6.5-2-2023-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next: (38 commits)
perf test: Fix event parsing test when PERF_PMU_CAP_EXTENDED_HW_TYPE isn't supported.
perf test: Fix event parsing test on Arm
perf evsel amd: Fix IBS error message
perf: unwind: Fix symfs with libdw
perf symbol: Fix uninitialized return value in symbols__find_by_name()
perf test: Test perf lock contention CSV output
perf lock contention: Add --output option
perf lock contention: Add -x option for CSV style output
perf lock: Remove stale comments
perf vendor events intel: Update tigerlake to 1.13
perf vendor events intel: Update skylakex to 1.31
perf vendor events intel: Update skylake to 57
perf vendor events intel: Update sapphirerapids to 1.14
perf vendor events intel: Update icelakex to 1.21
perf vendor events intel: Update icelake to 1.19
perf vendor events intel: Update cascadelakex to 1.19
perf vendor events intel: Update meteorlake to 1.03
perf vendor events intel: Add rocketlake events/metrics
perf vendor metrics intel: Make transaction metrics conditional
perf jevents: Support for has_event function
...
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supported.
Arm has multiple PMU types for heterogeneous systems, but doesn't
currently support PERF_PMU_CAP_EXTENDED_HW_TYPE. Make the tests
support both scenarios so that they pass on Arm, and will still pass
once PERF_PMU_CAP_EXTENDED_HW_TYPE support is added.
Fixes: 27c9fcfc1e14 ("perf test: Update parse-events expectations to test for multiple events")
Acked-by: Ian Rogers <irogers@google.com>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230705082653.23566-3-james.clark@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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The test looks for a PMU from sysfs with type = PERF_TYPE_RAW when
opening a raw event. Arm doesn't have a real raw PMU, only core PMUs
with unique types other than raw.
Instead of looking for a matching PMU, just test that the event type
was parsed as raw and skip the PMU search on Arm. The raw event type
test should also apply to all platforms so add it outside of the ifdef.
Fixes: aefde50a446b ("perf test: Fix parse-events tests for >1 core PMU")
Acked-by: Ian Rogers <irogers@google.com>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230705082653.23566-2-james.clark@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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AMD IBS can do per-process profiling[1] and is no longer restricted to
per-cpu or systemwide only. Remove stale error message. Also, checking
just exclude_kernel is not sufficient since IBS does not support any
privilege filters. So include all exclude_* checks. And finally, move
these checks under tools/perf/arch/x86/ from generic code.
Before:
$ sudo ./perf record -e ibs_op//k -C 0
Error:
AMD IBS may only be available in system-wide/per-cpu mode. Try
using -a, or -C and workload affinity
After:
$ sudo ./perf record -e ibs_op//k -C 0
Error:
AMD IBS doesn't support privilege filtering. Try again without
the privilege modifiers (like 'k') at the end.
[1] https://git.kernel.org/torvalds/c/30093056f7b2
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: ananth.narayan@amd.com
Cc: sandipan.das@amd.com
Cc: santosh.shukla@amd.com
Cc: irogers@google.com
Cc: peterz@infradead.org
Cc: adrian.hunter@intel.com
Cc: acme@kernel.org
Cc: jolsa@kernel.org
Link: https://lore.kernel.org/r/20230630085230.437-1-ravi.bangoria@amd.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Pass the full path including the symfs (if any) to libdw. Without this
unwinding fails with errors like this when a symfs is used:
unwind: failed with 'No such file or directory'"
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: kernel@axis.com
Cc: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230630-perf-libdw-symfs-v2-1-469760dd4d5b@axis.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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found_idx and s aren't initialized, so if no symbol is found then the
assert at the end will index off the end of the array causing a
segfault. The function also doesn't return NULL when the symbol isn't
found even if the assert passes. Fix it by initializing the values and
only setting them when something is found.
Fixes the following test failure:
$ perf test 1
1: vmlinux symtab matches kallsyms : FAILED!
Fixes: 259dce914e93 ("perf symbol: Remove symbol_name_rb_node")
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230630153840.858668-1-james.clark@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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To verify CSV output, just check the number of separators (",") using
the tr and wc commands like this.
grep -v "^#" ${result} | tr -d -c | wc -c
Now it expects 6 columns (and 5 separators) in the output, but it may
be changed later so count the field in the header first and compare it
to the actual output lines.
$ cat ${result}
# output: contended, total wait, max wait, avg wait, type, caller
1, 28787, 28787, 28787, spinlock, raw_spin_rq_lock_nested+0x1b
The test looks like below now:
$ sudo ./perf test -v contention
86: kernel lock contention analysis test :
--- start ---
test child forked, pid 2705822
Testing perf lock record and perf lock contention
Testing perf lock contention --use-bpf
Testing perf lock record and perf lock contention at the same time
Testing perf lock contention --threads
Testing perf lock contention --lock-addr
Testing perf lock contention --type-filter (w/ spinlock)
Testing perf lock contention --lock-filter (w/ tasklist_lock)
Testing perf lock contention --callstack-filter (w/ unix_stream)
Testing perf lock contention --callstack-filter with task aggregation
Testing perf lock contention CSV output
test child finished with 0
---- end ----
kernel lock contention analysis test: Ok
Acked-by: Ian Rogers <irogers@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230628200141.2739587-5-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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To avoid formatting failures for example in CSV output due to debug
messages, add --output option to put the result in a file.
Unfortunately the short -o option was taken by the --owner already.
$ sudo ./perf lock con -ab --output lock-out.txt -v sleep 1
Looking at the vmlinux_path (8 entries long)
symsrc__init: cannot get elf header.
Using /proc/kcore for kernel data
Using /proc/kallsyms for symbols
$ head lock-out.txt
contended total wait max wait avg wait type caller
3 76.79 us 26.89 us 25.60 us rwlock:R ep_poll_callback+0x2d
0xffffffff9a23f4b5 _raw_read_lock_irqsave+0x45
0xffffffff99bbd4dd ep_poll_callback+0x2d
0xffffffff999029f3 __wake_up_common+0x73
0xffffffff99902b82 __wake_up_common_lock+0x82
0xffffffff99fa5b1c sock_def_readable+0x3c
0xffffffff9a11521d unix_stream_sendmsg+0x18d
0xffffffff99f9fc9c sock_sendmsg+0x5c
Suggested-by: Ian Rogers <irogers@google.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230628200141.2739587-4-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Sometimes we want to process the output by external programs. Let's add
the -x option to specify the field separator like perf stat.
$ sudo ./perf lock con -ab -x, sleep 1
# output: contended, total wait, max wait, avg wait, type, caller
19, 194232, 21415, 10222, spinlock, process_one_work+0x1f0
15, 162748, 23843, 10849, rwsem:R, do_user_addr_fault+0x40e
4, 86740, 23415, 21685, rwlock:R, ep_poll_callback+0x2d
1, 84281, 84281, 84281, mutex, iwl_mvm_async_handlers_wk+0x135
8, 67608, 27404, 8451, spinlock, __queue_work+0x174
3, 58616, 31125, 19538, rwsem:W, do_mprotect_pkey+0xff
3, 52953, 21172, 17651, rwlock:W, do_epoll_wait+0x248
2, 30324, 19704, 15162, rwsem:R, do_madvise+0x3ad
1, 24619, 24619, 24619, spinlock, rcu_core+0xd4
The first line is a comment that shows the output format. Each line is
separated by the given string ("," in this case). The time is printed
in nsec without the unit so that it can be parsed easily.
The characters can be used in the output like (":", "+" and ".") are not
allowed for the -x option.
$ ./perf lock con -x:
Cannot use the separator that is already used
Usage: perf lock contention [<options>]
-x, --field-separator <separator>
print result in CSV format with custom separator
The stacktraces are printed in the same line separated by ":". The
header is updated to show the stacktrace. Also the debug output is
added at the end as a comment.
$ sudo ./perf lock con -abv -x, -F wait_total sleep 1
Looking at the vmlinux_path (8 entries long)
symsrc__init: cannot get elf header.
Using /proc/kcore for kernel data
Using /proc/kallsyms for symbols
# output: total wait, type, caller, stacktrace
37134, spinlock, rcu_core+0xd4, 0xffffffff9d0401e4 _raw_spin_lock_irqsave+0x44: 0xffffffff9c738114 rcu_core+0xd4: ...
21213, spinlock, raw_spin_rq_lock_nested+0x1b, 0xffffffff9d0407c0 _raw_spin_lock+0x30: 0xffffffff9c6d9cfb raw_spin_rq_lock_nested+0x1b: ...
20506, rwlock:W, ep_done_scan+0x2d, 0xffffffff9c9bc4dd ep_done_scan+0x2d: 0xffffffff9c9bd5f1 do_epoll_wait+0x6d1: ...
18044, rwlock:R, ep_poll_callback+0x2d, 0xffffffff9d040555 _raw_read_lock_irqsave+0x45: 0xffffffff9c9bc81d ep_poll_callback+0x2d: ...
17890, rwlock:W, do_epoll_wait+0x47b, 0xffffffff9c9bd39b do_epoll_wait+0x47b: 0xffffffff9c9be9ef __x64_sys_epoll_wait+0x6d1: ...
12114, spinlock, futex_wait_queue+0x60, 0xffffffff9d0407c0 _raw_spin_lock+0x30: 0xffffffff9d037cae __schedule+0xbe: ...
# debug: total=7, bad=0, bad_task=0, bad_stack=0, bad_time=0, bad_data=0
Also note that some field (like lock symbols) can be empty.
$ sudo ./perf lock con -abl -x, -E 10 sleep 1
# output: contended, total wait, max wait, avg wait, address, symbol, type
6, 275025, 61764, 45837, ffff9dcc9f7d60d0, , spinlock
18, 87716, 11196, 4873, ffff9dc540059000, , spinlock
2, 6472, 5499, 3236, ffff9dcc7f730e00, rq_lock, spinlock
3, 4429, 2341, 1476, ffff9dcc7f7b0e00, rq_lock, spinlock
3, 3974, 1635, 1324, ffff9dcc7f7f0e00, rq_lock, spinlock
4, 3290, 1326, 822, ffff9dc5f4e2cde0, , rwlock
3, 2894, 1023, 964, ffffffff9e0d7700, rcu_state, spinlock
1, 2567, 2567, 2567, ffff9dcc7f6b0e00, rq_lock, spinlock
4, 1259, 596, 314, ffff9dc69c2adde0, , rwlock
1, 934, 934, 934, ffff9dcc7f670e00, rq_lock, spinlock
Acked-by: Ian Rogers <irogers@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230628200141.2739587-3-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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The comment was for symbol_conf.sort_by_name which was deleted already.
Let's get rid of the stale comments as well.
Acked-by: Ian Rogers <irogers@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230628200141.2739587-2-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Updates were released in:
https://github.com/intel/perfmon/commit/9a3cd5ad68aee46078c663fe0cd9484e3956fd88
Adds the events ICACHE_DATA.STALLS, ICACHE_TAG.STALLS and
DECODE.LCP. Descriptions are also updated.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-13-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Updates were released in:
https://github.com/intel/perfmon/commit/cdaa69afe7a48a217b1d89320a27efc6e650cec3
Adds the events IDQ.DSB_CYCLES_OK, IDQ.DSB_CYCLES_ANY,
ICACHE_TAG.STALLS, DECODE.LCP, LSD.CYCLES_OK. Descriptions are also
updated.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-12-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Updates were released in:
https://github.com/intel/perfmon/commit/1c3042c13bbfea05abe1ebb6910ae58b2172e9ef
Adds the events IDQ.DSB_CYCLES_OK, IDQ.DSB_CYCLES_ANY,
ICACHE_TAG.STALLS, DECODE.LCP, LSD.CYCLES_OK. Descriptions are also
updated.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Updates were released in:
https://github.com/intel/perfmon/commit/a84850f1fec633002c35838ed34e51e1f0d6a2dd
Adds a large number of CXL events like
UNC_CHA_TOR_OCCUPANCY.IA_MISS_RFO_CXL_ACC,
UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_CXL_ACC,
UNC_CHA_TOR_INSERTS.IA_MISS_DRD_CXL_ACC,
UNC_CHA_TOR_INSERTS.IA_MISS_RFO_CXL_ACC,
UNC_CHA_TOR_INSERTS.IA_MISS_LLCPREFRFO_CXL_ACC,
UNC_CHA_TOR_INSERTS.IA_MISS_RFO_PREF_CXL_ACC,
UNC_CHA_TOR_INSERTS.IA_MISS_DRD_PREF_CXL_ACC,
UNC_CHA_TOR_INSERTS.IA_MISS_LLCPREFDATA_CXL_ACC,
UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_PREF_CXL_ACC,
UNC_CHA_TOR_OCCUPANCY.IA_MISS_LLCPREFDATA_CXL_ACC,
UNC_CHA_TOR_OCCUPANCY.IA_MISS_LLCPREFRFO_CXL_ACC,
UNC_CHA_TOR_OCCUPANCY.IA_MISS_RFO_PREF_CXL_ACC,
UNC_CHA_TOR_INSERTS.IA_MISS_CXL_ACC,
UNC_CHA_TOR_INSERTS.IA_HIT_CXL_ACC,
UNC_CHA_TOR_OCCUPANCY.IA_MISS_CXL_ACC,
UNC_CHA_TOR_OCCUPANCY.IA_HIT_CXL_ACC.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-10-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Updates were released in:
https://github.com/intel/perfmon/commit/78d47cbbae48a0297a507ae4fea234ff37ff9960
Adds the events ICACHE_DATA.STALLS, ICACHE_TAG.STALLS and
DECODE.LCP. Descriptions are also updated.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-9-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Updates were released in:
https://github.com/intel/perfmon/commit/f3d841189f8964bc240c86301f4c849845630b5b
A number of events are deprecated and event descriptions updated. Adds
events ICACHE_DATA.STALLS, ICACHE_TAG.STALLS and DECODE.LCP.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Updates were released in:
https://github.com/intel/perfmon/commit/e4f83534f23a69e6da55c672c4d929919688c9b6
Adds the events IDQ.DSB_CYCLES_OK, IDQ.DSB_CYCLES_ANY,
ICACHE_TAG.STALLS, DECODE.LCP, LSD.CYCLES_OK. Descriptions are also
updated.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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1.03 events were released in:
https://github.com/intel/perfmon/commit/501a29e88b57e8b01d610168d0101d6181b15e28
It added a lot of events and all uncore events.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Add RocketLake events added to Intel perfmon in:
https://github.com/intel/perfmon/commit/f5f47dc938d81d5cc491cf8ac1f90bee18e238cf
mapfile.csv is updated accordingly with the CPUID matching one
previously associated with icelake.
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-5-irogers@google.com
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Make the transaction metrics conditional on the cycles-tx event being
present. This event may not be present when TSX extensions have been
disabled.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Support for the new has_event function in metrics.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Some events are dependent on firmware/kernel enablement. Allow such
events to be detected when the metric is parsed so that the metric's
event parsing doesn't fail.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Sohom Datta <sohomdatta1@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Samantha Alt <samantha.alt@intel.com>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230623151016.4193660-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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The thread__find_map() is to find a map for a given address in the
given thread's address space. It searches maps based on the cpu mode
and fills various information in the addr_location data structure.
It might change al->maps and al->map, but not al->thread. Then I
think no reason to not set the al->thread at the beginning.
Also get rid of the duplicate 'al->map = NULL' part.
Fixes: 0dd5041c9a0ea ("perf addr_location: Add init/exit/copy functions")
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: James Clark <james.clark@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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If loading a core PMU fails, legacy hardware/cache events may segv due
to there being no PMU. Create a placeholder empty PMU for this
case. This was discussed in:
https://lore.kernel.org/lkml/20230614151625.2077-1-yangjihong1@huawei.com/
Reported-by: Yang Jihong <yangjihong1@huawei.com>
Tested-by: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: James Clark <james.clark@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/r/20230627182834.117565-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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The dso__find_symbol_by_name() should be have idx pointer argument.
Found during the build-test.
$ make build-test
...
CC /tmp/tmp.6JwPK1xbWG/tests/pe-file-parsing.o
tests/pe-file-parsing.c: In function ‘run_dir’:
tests/pe-file-parsing.c:64:15: error: too few arguments to function ‘dso__find_symbol_by_name’
64 | sym = dso__find_symbol_by_name(dso, "main");
| ^~~~~~~~~~~~~~~~~~~~~~~~
In file included from tests/pe-file-parsing.c:16:
/usr/local/google/home/namhyung/project/linux/tools/perf/util/symbol.h:135:16: note: declared here
135 | struct symbol *dso__find_symbol_by_name(struct dso *dso, const char *name, size_t *idx);
| ^~~~~~~~~~~~~~~~~~~~~~~~
Fixes: 259dce914e93 ("perf symbol: Remove symbol_name_rb_node")
Acked-by: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230627063257.549005-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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-target has been deprecated since Clang 3.4 in 2013. Use the preferred
--target=bpf form instead. This matches how we use --target= in
scripts/Makefile.clang.
Signed-off-by: Fangrui Song <maskray@google.com>
Acked-by: Yonghong Song <yhs@fb.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: llvm@lists.linux.dev
Cc: Ingo Molnar <mingo@redhat.com>
Cc: bpf@vger.kernel.org
Link: https://github.com/llvm/llvm-project/commit/274b6f0c87a6a1798de0a68135afc7f95def6277
Link: https://lore.kernel.org/r/20230624002708.1907962-1-maskray@google.com
[ resolved a conflict with GEN_VMLINUX_H changes ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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The original logic was to check is_pmu_hybrid() like in the below.
It just checks the name of PMU specifically for Intel hybrid systems
which means uncore PMU events should return false.
https://lore.kernel.org/all/20230527072210.2900565-35-irogers@google.com/
The is_pmu_hybrid() was replaced by arch-agnostic way but with the
incorrect condition which was fixed for core PMUs but not uncore.
This change fixes both.
Fixes: e23421426e13 ("perf pmu: Correct perf_pmu__auto_merge_stats() affecting hybrid")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: https://lore.kernel.org/all/CAP-5=fXOi=xQ4=j5xAq+jWLR9n7uvfsWK+PzXkY1MZ3Fz-xccw@mail.gmail.com/
Link: https://lore.kernel.org/r/20230626053048.257959-1-irogers@google.com
[ rephrase the commit log a bit ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Namhyung reported segfault in perf daemon start command.
It's caused by extra check on argv[0] which is set to NULL by previous
__cmd_start call. Adding missing else to skip the extra check.
Fixes: 92294b906e6c ("perf daemon: Dynamically allocate path to perf")
Reported-and-Tested-by: Namhyung Kim <namhyung@kernel.org>
Reported-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lore.kernel.org/r/20230626201606.2514679-1-jolsa@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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perf_event_attr__fprintf()
When printing perf_event_attr, always display perf_event_attr config and
its symbol to improve the readability of debugging information.
Before:
# perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101,mem:0x0 -C 0 true
<SNIP>
------------------------------------------------------------
perf_event_attr:
size 136
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 1
size 136
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6
------------------------------------------------------------
perf_event_attr:
type 2
size 136
config 0x143
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7
------------------------------------------------------------
perf_event_attr:
type 3
size 136
config 0x10005
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 9
------------------------------------------------------------
perf_event_attr:
type 4
size 136
config 0x101
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10
------------------------------------------------------------
perf_event_attr:
type 5
size 136
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
bp_type 3
{ bp_len, config2 } 0x4
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11
<SNIP>
After:
# perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101,mem:0x0 -C 0 true
<SNIP>
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0 (PERF_COUNT_HW_CPU_CYCLES)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 1 (PERF_TYPE_SOFTWARE)
size 136
config 0 (PERF_COUNT_SW_CPU_CLOCK)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6
------------------------------------------------------------
perf_event_attr:
type 2 (PERF_TYPE_TRACEPOINT)
size 136
config 0x143 (sched:sched_switch)
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7
------------------------------------------------------------
perf_event_attr:
type 3 (PERF_TYPE_HW_CACHE)
size 136
config 0x10005 (PERF_COUNT_HW_CACHE_RESULT_MISS | PERF_COUNT_HW_CACHE_OP_READ | PERF_COUNT_HW_CACHE_BPU)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 9
------------------------------------------------------------
perf_event_attr:
type 4 (PERF_TYPE_RAW)
size 136
config 0x101
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10
------------------------------------------------------------
perf_event_attr:
type 5 (PERF_TYPE_BREAKPOINT)
size 136
config 0
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
bp_type 3
{ bp_len, config2 } 0x4
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11
------------------------------------------------------------
perf_event_attr:
type 1 (PERF_TYPE_SOFTWARE)
size 136
config 0x9 (PERF_COUNT_SW_DUMMY)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
inherit 1
mmap 1
comm 1
freq 1
task 1
sample_id_all 1
mmap2 1
comm_exec 1
ksymbol 1
bpf_event 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 12
<SNIP>
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: anshuman.khandual@arm.com
Cc: mark.rutland@arm.com
Cc: irogers@google.com
Cc: jesussanp@google.com
Cc: peterz@infradead.org
Cc: acme@kernel.org
Cc: jolsa@kernel.org
Cc: alexander.shishkin@linux.intel.com
Cc: mingo@redhat.com
Link: https://lore.kernel.org/r/20230623054416.160858-5-yangjihong1@huawei.com
[ fix perf import test by adding a dummy tracepoint_id__to_name() ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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perf_event_attr__fprintf()
When printing perf_event_attr, always display perf_event_attr type and
its symbol to improve the readability of debugging information.
Before:
# perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101,mem:0x0 -C 0 true
<SNIP>
------------------------------------------------------------
perf_event_attr:
size 136
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 1
size 136
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6
------------------------------------------------------------
perf_event_attr:
type 2
size 136
config 0x143
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7
------------------------------------------------------------
perf_event_attr:
type 3
size 136
config 0x10005
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 9
------------------------------------------------------------
perf_event_attr:
type 4
size 136
config 0x101
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10
------------------------------------------------------------
perf_event_attr:
type 5
size 136
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
bp_type 3
{ bp_len, config2 } 0x4
------------------------------------------------------------
<SNIP>
After:
# perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101,mem:0x0 -C 0 true
<SNIP>
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 1 (PERF_TYPE_SOFTWARE)
size 136
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6
------------------------------------------------------------
perf_event_attr:
type 2 (PERF_TYPE_TRACEPOINT)
size 136
config 0x143
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7
------------------------------------------------------------
perf_event_attr:
type 3 (PERF_TYPE_HW_CACHE)
size 136
config 0x10005
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 9
------------------------------------------------------------
perf_event_attr:
type 4 (PERF_TYPE_RAW)
size 136
config 0x101
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10
------------------------------------------------------------
perf_event_attr:
type 5 (PERF_TYPE_BREAKPOINT)
size 136
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|IDENTIFIER
read_format ID
disabled 1
inherit 1
sample_id_all 1
exclude_guest 1
bp_type 3
{ bp_len, config2 } 0x4
------------------------------------------------------------
<SNIP>
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: anshuman.khandual@arm.com
Cc: mark.rutland@arm.com
Cc: irogers@google.com
Cc: jesussanp@google.com
Cc: peterz@infradead.org
Cc: acme@kernel.org
Cc: jolsa@kernel.org
Cc: alexander.shishkin@linux.intel.com
Cc: mingo@redhat.com
Link: https://lore.kernel.org/r/20230623054416.160858-4-yangjihong1@huawei.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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When printing attr, members whose value is 0 will not be printed, we want
to print the case where attr->type is 0(PERF_TYPE_HARDWARE), add `_a`
param to PRINT_ATTRf macro to always print member when it is true
No functional change.
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: anshuman.khandual@arm.com
Cc: mark.rutland@arm.com
Cc: irogers@google.com
Cc: jesussanp@google.com
Cc: peterz@infradead.org
Cc: acme@kernel.org
Cc: jolsa@kernel.org
Cc: alexander.shishkin@linux.intel.com
Cc: mingo@redhat.com
Link: https://lore.kernel.org/r/20230623054416.160858-3-yangjihong1@huawei.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Add tracepoint_id_to_name() helper to search for the trace events directory
by given event id and return the corresponding tracepoint.
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: anshuman.khandual@arm.com
Cc: mark.rutland@arm.com
Cc: irogers@google.com
Cc: jesussanp@google.com
Cc: peterz@infradead.org
Cc: acme@kernel.org
Cc: jolsa@kernel.org
Cc: alexander.shishkin@linux.intel.com
Cc: mingo@redhat.com
Link: https://lore.kernel.org/r/20230623054416.160858-2-yangjihong1@huawei.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Previously used to specify symbol_name_rb_node was in use.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Jason Wang <wangborong@cdjrlc.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20230623054520.4118442-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Most perf commands want to sort symbols by name and this is done via
an invasive rbtree that on 64-bit systems costs 24 bytes. Sorting the
symbols in a DSO by name is optional and not done by default, however,
if sorting is requested the 24 bytes is allocated for every
symbol.
This change removes the rbtree and uses a sorted array of symbol
pointers instead (costing 8 bytes per symbol). As the array is created
on demand then there are further memory savings. The complexity of
sorting the array and using the rbtree are the same.
To support going to the next symbol, the index of the current symbol
needs to be passed around as a pair with the current symbol. This
requires some API changes.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Jason Wang <wangborong@cdjrlc.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20230623054520.4118442-3-irogers@google.com
[ minimize change in symbols__sort_by_name() ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Determine if symbols are sorted, set the sorted flag and sort under
the dso lock. Done in the interest of thread safety.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Jason Wang <wangborong@cdjrlc.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20230623054520.4118442-2-irogers@google.com
[ handle the similar code in util/probe-event.c ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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