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* perf tools: Use list_del_init() more thorouglyArnaldo Carvalho de Melo2019-07-091-2/+2
| | | | | | | | | | | | To allow for destructors to check if they're operating on a object still in a list, and to avoid going from use after free list entries into still valid, or even also other already removed from list entries. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-deh17ub44atyox3j90e6rksu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Use zfree() where applicableArnaldo Carvalho de Melo2019-07-091-3/+2
| | | | | | | | | | | | | | | | | | In places where the equivalent was already being done, i.e.: free(a); a = NULL; And in placs where struct members are being freed so that if we have some erroneous reference to its struct, then accesses to freed members will result in segfaults, which we can detect faster than use after free to areas that may still have something seemingly valid. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-jatyoofo5boc1bsvoig6bb6i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools lib: Adopt zalloc()/zfree() from tools/perfArnaldo Carvalho de Melo2019-07-091-1/+1
| | | | | | | | | | Eroding a bit more the tools/perf/util/util.h hodpodge header. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-natazosyn9rwjka25tvcnyi0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* tools perf: Move from sane_ctype.h obtained from git to the Linux's originalArnaldo Carvalho de Melo2019-06-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | We got the sane_ctype.h headers from git and kept using it so far, but since that code originally came from the kernel sources to the git sources, perhaps its better to just use the one in the kernel, so that we can leverage tools/perf/check_headers.sh to be notified when our copy gets out of sync, i.e. when fixes or goodies are added to the code we've copied. This will help with things like tools/lib/string.c where we want to have more things in common with the kernel, such as strim(), skip_spaces(), etc so as to go on removing the things that we have in tools/perf/util/ and instead using the code in the kernel, indirectly and removing things like EXPORT_SYMBOL(), etc, getting notified when fixes and improvements are made to the original code. Hopefully this also should help with reducing the difference of code hosted in tools/ to the one in the kernel proper. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-7k9868l713wqtgo01xxygn12@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* Merge branch 'x86/cpu' into perf/core, to pick up dependent changesIngo Molnar2019-06-171-10/+1
|\ | | | | | | Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288Thomas Gleixner2019-06-051-10/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | perf auxtrace: Fix itrace defaults for perf scriptAdrian Hunter2019-05-281-1/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 4eb068157121 ("perf script: Make itrace script default to all calls") does not work for the case when '--itrace' only is used, because default_no_sample is not being passed. Example: Before: $ perf record -e intel_pt/cyc/u ls $ perf script --itrace > cmp1.txt $ perf script --itrace=cepwx > cmp2.txt $ diff -sq cmp1.txt cmp2.txt Files cmp1.txt and cmp2.txt differ After: $ perf script --itrace > cmp1.txt $ perf script --itrace=cepwx > cmp2.txt $ diff -sq cmp1.txt cmp2.txt Files cmp1.txt and cmp2.txt are identical Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: stable@vger.kernel.org Fixes: 4eb068157121 ("perf script: Make itrace script default to all calls") Link: http://lkml.kernel.org/r/20190520113728.14389-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Improve address filter error message when there is no DSOAdrian Hunter2019-03-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The message does not indicate the possibility that the symbol is not found because the file does not exist. Before: $ perf record -e intel_pt//u --filter 'filter strcmp / strcpy @ foo ' ls Symbol 'strcmp' not found. Note that symbols must be functions. Failed to parse address filter: 'filter strcmp / strcpy @ foo ' Filter format is: filter|start|stop|tracestop <start symbol or address> [/ <end symbol or size>] [@<file name>] Where multiple filters are separated by space or comma. After: $ perf record -e intel_pt//u --filter 'filter strcmp / strcpy @ foo ' ls File 'foo' not found or has no symbols. Symbol 'strcmp' not found. Note that symbols must be functions. Failed to parse address filter: 'filter strcmp / strcpy @ foo ' Filter format is: filter|start|stop|tracestop <start symbol or address> [/ <end symbol or size>] [@<file name>] Where multiple filters are separated by space or comma. Reported-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lkml.kernel.org/n/tip-dvngzxd0jkplzw1ary69dilb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Add timestamp to auxtrace errorsAdrian Hunter2019-02-061-2/+20
| | | | | | | | | | | The timestamp can use useful to find part of a trace that has an error without outputting all of the trace e.g. using the itrace 's' option to skip initial number of events. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20190206103947.15750-6-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Define auxtrace record alignmentAdrian Hunter2019-02-061-2/+2
| | | | | | | | | | | | | Define auxtrace record alignment so that it can be referenced elsewhere. Note this is preparation for patch "perf intel-pt: Fix overlap calculation for padding" Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20190206103947.15750-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf hist: Remove symbol.h from hist.h, just fwd decls are neededArnaldo Carvalho de Melo2019-02-061-0/+1
| | | | | | | | | | To reduce the includes dependencies. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-cmvg5ght75mmfg1efeyna9rn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Alter addr_filter__entire_dso() to work if there are no symbolsAdrian Hunter2018-12-181-7/+4
| | | | | | | | | | | | | | | addr_filter__entire_dso() uses the first and last symbols from a dso, and so does not work when there are no symbols. Alter it to filter the whole file instead. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Fixes: 1b36c03e3569 ("perf record: Add support for using symbols in address filters") Link: http://lkml.kernel.org/r/20181127084634.12469-1-adrian.hunter@intel.com [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script: Make itrace script default to all callsAndi Kleen2018-10-241-5/+12
| | | | | | | | | | | | | | | | | | | | | | | By default 'perf script' for itrace outputs sampled instructions or branches. In my experience this is confusing to users because it's hard to correlate with real program behavior. The sampling makes sense for tools like 'perf report' that actually sample to reduce the run time, but run time is normally not a problem for 'perf script'. It's better to give an accurate representation of the program flow. Default 'perf script' to output all calls for itrace. That's a much saner default. The old behavior can be still requested with 'perf script' --itrace=ibxwpe100000 v2: Fix ETM build failure v3: Really fix ETM build failure (Kim Phillips) Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Leo Yan <leo.yan@linaro.org> Link: http://lkml.kernel.org/r/20180920180540.14039-3-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add 'struct perf_mmap' arg to record__write()Jiri Olsa2018-09-191-1/+1
| | | | | | | | | | | | | | The struct perf_mmap map argument will hold the file pointer to write the data to. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180913125450.21342-5-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Pass struct perf_mmap into mmap__read* functionsJiri Olsa2018-09-191-5/+6
| | | | | | | | | | | | | | | The perf_mmap struct will hold a file pointer to write the mmap's contents, so we need to propagate it down the stack to record__write callers instead of its member the auxtrace_mmap struct. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180913125450.21342-4-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Remove perf_tool from event_op3Jiri Olsa2018-09-191-4/+3
| | | | | | | | | | | | | | | Now that we keep a perf_tool pointer inside perf_session, there's no need to have a perf_tool argument in the event_op3 callback. Remove it. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180913125450.21342-3-jolsa@kernel.org [ Fix the builtin-inject.c build for !HAVE_AUXTRACE_SUPPORT ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Remove perf_tool from event_op2Jiri Olsa2018-09-191-6/+4
| | | | | | | | | | | | | | Now that we keep a perf_tool pointer inside perf_session, there's no need to have a perf_tool argument in the event_op2 callback. Remove it. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180913125450.21342-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Fix queue resizeAdrian Hunter2018-08-141-0/+3
| | | | | | | | | | | | | When the number of queues grows beyond 32, the array of queues is resized but not all members were being copied. Fix by also copying 'tid', 'cpu' and 'set'. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: stable@vger.kernel.org Fixes: e502789302a6e ("perf auxtrace: Add helpers for queuing AUX area tracing data") Link: http://lkml.kernel.org/r/20180814084608.6563-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Support for perf report -D for s390Thomas Richter2018-08-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add initial support for s390 auxiliary traces using the CPU-Measurement Sampling Facility. Support and ignore PERF_REPORT_AUXTRACE_INFO records in the perf data file. Later patches will show the contents of the auxiliary traces. Setup the auxtrace queues and data structures for s390. A raw dump of the perf.data file now does not show an error when an auxtrace event is encountered. Output before: [root@s35lp76 perf]# ./perf report -D -i perf.data.auxtrace 0x128 [0x10]: failed to process type: 70 Error: failed to process sample 0x128 [0x10]: event: 70 . . ... raw event: size 16 bytes . 0000: 00 00 00 46 00 00 00 10 00 00 00 00 00 00 00 00 ...F............ 0x128 [0x10]: PERF_RECORD_AUXTRACE_INFO type: 0 [root@s35lp76 perf]# Output after: # ./perf report -D -i perf.data.auxtrace |fgrep PERF_RECORD_AUXTRACE 0 0 0x128 [0x10]: PERF_RECORD_AUXTRACE_INFO type: 5 0 0 0x25a66 [0x30]: PERF_RECORD_AUXTRACE size: 0x40000 offset: 0 ref: 0 idx: 4 tid: -1 cpu: 4 .... Additional notes about the underlying hardware and software implementation, provided by Hendrik Brueckner (see Link: below). ============================================================================= The CPU-Measurement Facility (CPU-MF) provides a set of functions to obtain performance information on the mainframe. Basically, it was introduced with System z10 years ago for the z/Architecture, that means, 64-bit. For Linux, there are two facilities of interest, counter facility and sampling facility. The counter facility provides hardware counters for instructions, cycles, crypto-activities, and many more. The sampling facility is a hardware sampler that when started will write samples at a particular interval into a sampling buffer. At some point, for example, if a sample block is full, it generates an interrupt to collect samples (while the sampler continues to run). Few years ago, I started to provide the a perf PMU to use the counter and sampling facilities. Recently, the device driver was updated to also "export" the sampling buffer into the AUX area. Thomas now completed the related perf work to interpret and process these AUX data. If people are more interested in the sampling facility, they can have a look into: - The Load-Program-Parameter and the CPU-Measurement Facilities, SA23-2260-05 http://www-01.ibm.com/support/docview.wss?uid=isg26fcd1cc32246f4c8852574ce0044734a and to learn how-to use it for Linux on Z, have look at chapter 54, "Using the CPU-measurement facilities" in the: - Device Drivers, Features, and Commands, SC33-8411-34 http://public.dhe.ibm.com/software/dw/linux390/docu/l416dd34.pdf ============================================================================= Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com> Link: http://lkml.kernel.org/r/20180803100758.GA28475@linux.ibm.com Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Link: http://lkml.kernel.org/r/20180802074622.13641-2-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Use kallsyms__is_function()Arnaldo Carvalho de Melo2018-04-261-2/+2
| | | | | | | | | | | | | | Replacing equivalent, the equivalent and longer variation: symbol__is_a(type, MAP__FUNCTION); Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-9t3dqogher54owfl9o2mir52@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf symbols: Shorten dso__(first|last)_symbol()Arnaldo Carvalho de Melo2018-04-261-4/+4
| | | | | | | | | | | | All users want MAP__FUNCTION, and this split is going away. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-sm72zwt1f03ma5uw78l6zze0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Make auxtrace_queues__add_buffer() do CPU filteringAdrian Hunter2018-04-061-10/+10
| | | | | | | | | | | In preparation for supporting AUX area sampling buffers, auxtrace_queues__add_buffer() needs to be more generic. To that end, move CPU filtering into it. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1520327598-1317-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Make auxtrace_queues__add_buffer() allocate struct bufferAdrian Hunter2018-04-051-30/+24
| | | | | | | | | | | In preparation for supporting AUX area sampling buffers, auxtrace_queues__add_buffer() needs to be more generic. To that end, move memory allocation for struct buffer into it. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1520327598-1317-7-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Make auxtrace_queues__add_buffer() return buffer_ptrAdrian Hunter2018-03-071-8/+15
| | | | | | | | | | | In preparation for supporting AUX area sampling buffers, auxtrace_queues__add_buffer() needs to be more generic. To that end, make it return buffer_ptr instead of the caller. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1520327598-1317-6-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Rename some buffer-queuing functionsAdrian Hunter2018-03-071-10/+10
| | | | | | | | | | Rename some buffer-queuing functions in preparation for supporting AUX area sampling buffers. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1520327598-1317-5-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Prevent decoding when --no-itraceAdrian Hunter2018-03-061-6/+9
| | | | | | | | | | Prevent auxtrace_queues__process_index() from queuing AUX area data for decoding when the --no-itrace option has been used. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1520327598-1317-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add initial entry point for decoder CoreSight tracesMathieu Poirier2018-01-251-0/+2
| | | | | | | | | | | | | | | | | | | This patch adds the entry point for CoreSight trace decoding, serving as a jumping board for furhter expansions. Co-authored-by: Tor Jeremiassen <tor@ti.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Mike Leach <mike.leach@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1516211539-5166-3-git-send-email-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add ARM Statistical Profiling Extensions (SPE) supportKim Phillips2018-01-171-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'perf record' and 'perf report --dump-raw-trace' supported in this release. Example usage: # perf record -e arm_spe/ts_enable=1,pa_enable=1/ dd if=/dev/zero of=/dev/null count=10000 # perf report --dump-raw-trace Note that the perf.data file is portable, so the report can be run on another architecture host if necessary. Output will contain raw SPE data and its textual representation, such as: 0x5c8 [0x30]: PERF_RECORD_AUXTRACE size: 0x200000 offset: 0 ref: 0x1891ad0e idx: 1 tid: 2227 cpu: 1 . . ... ARM SPE data: size 2097152 bytes . 00000000: 49 00 LD . 00000002: b2 c0 3b 29 0f 00 00 ff ff VA 0xffff00000f293bc0 . 0000000b: b3 c0 eb 24 fb 00 00 00 80 PA 0xfb24ebc0 ns=1 . 00000014: 9a 00 00 LAT 0 XLAT . 00000017: 42 16 EV RETIRED L1D-ACCESS TLB-ACCESS . 00000019: b0 00 c4 15 08 00 00 ff ff PC 0xff00000815c400 el3 ns=1 . 00000022: 98 00 00 LAT 0 TOT . 00000025: 71 36 6c 21 2c 09 00 00 00 TS 39395093558 . 0000002e: 49 00 LD . 00000030: b2 80 3c 29 0f 00 00 ff ff VA 0xffff00000f293c80 . 00000039: b3 80 ec 24 fb 00 00 00 80 PA 0xfb24ec80 ns=1 . 00000042: 9a 00 00 LAT 0 XLAT . 00000045: 42 16 EV RETIRED L1D-ACCESS TLB-ACCESS . 00000047: b0 f4 11 16 08 00 00 ff ff PC 0xff0000081611f4 el3 ns=1 . 00000050: 98 00 00 LAT 0 TOT . 00000053: 71 36 6c 21 2c 09 00 00 00 TS 39395093558 . 0000005c: 48 00 INSN-OTHER . 0000005e: 42 02 EV RETIRED . 00000060: b0 2c ef 7f 08 00 00 ff ff PC 0xff0000087fef2c el3 ns=1 . 00000069: 98 00 00 LAT 0 TOT . 0000006c: 71 d1 6f 21 2c 09 00 00 00 TS 39395094481 ... Other release notes: - applies to acme's perf/{core,urgent} branches, likely elsewhere - Report is self-contained within the tool. Record requires enabling the kernel SPE driver by setting CONFIG_ARM_SPE_PMU. - The intel-bts implementation was used as a starting point; its min/default/max buffer sizes and power of 2 pages granularity need to be revisited for ARM SPE - Recording across multiple SPE clusters/domains not supported - Snapshot support (record -S), and conversion to native perf events (e.g., via 'perf inject --itrace'), are also not supported - Technically both cs-etm and spe can be used simultaneously, however disabled for simplicity in this release Signed-off-by: Kim Phillips <kim.phillips@arm.com> Reviewed-by: Dongjiu Geng <gengdongjiu@huawei.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wang Nan <wangnan0@huawei.com> Cc: Will Deacon <will.deacon@arm.com> Link: http://lkml.kernel.org/r/20180114132850.0b127434b704a26bad13268f@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf perf: Remove duplicate includesPravin Shedge2017-12-271-3/+0
| | | | | | | | | | | | | | These duplicate includes have been found with scripts/checkincludes.pl but they have been removed manually to avoid removing false positives. Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1512582204-6493-1-git-send-email-pravin.shedge4linux@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Rename struct perf_data_file to perf_dataJiri Olsa2017-10-301-2/+2
| | | | | | | | | | | | | | | | | | Rename struct perf_data_file to perf_data, because we will add the possibility to have multiple files under perf.data, so the 'perf_data' name fits better. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Changbin Du <changbin.du@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-39wn4d77phel3dgkzo3lyan0@git.kernel.org [ Fixup recent changes in 'perf script --per-event-dump' ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Add CPU filter supportAdrian Hunter2017-06-301-0/+10
| | | | | | | | | | | Decoding auxtrace data can take a long time. To avoid decoding unnecessarily, filter auxtrace data that is collected per-cpu before it is decoded. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1495786658-18063-38-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Add itrace option to output power eventsAdrian Hunter2017-06-271-0/+4
| | | | | | | | | Add itrace option to output power events. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1495786658-18063-25-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Add itrace option to output ptwrite eventsAdrian Hunter2017-06-271-0/+4
| | | | | | | | | Add itrace option to output ptwrite events. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1495786658-18063-24-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move sane ctype stuff from util.h to sane_ctype.hArnaldo Carvalho de Melo2017-04-191-2/+3
| | | | | | | | | | | | More stuff that came from git, out of the hodge-podge that is util.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-e3lana4gctz3ub4hn4y29hkw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Including missing inttypes.h headerArnaldo Carvalho de Melo2017-04-191-0/+1
| | | | | | | | | | | | Needed to use the PRI[xu](32,64) formatting macros. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-wkbho8kaw24q67dd11q0j39f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Fix no_size logic in addr_filter__resolve_kernel_syms()Adrian Hunter2017-03-271-2/+2
| | | | | | | | | | | | Address filtering with kernel symbols incorrectly resulted in the error "Cannot determine size of symbol" because the no_size logic was the wrong way around. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Andi Kleen <ak@linux.intel.com> Cc: stable@vger.kernel.org # v4.9+ Link: http://lkml.kernel.org/r/1490357752-27942-1-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: Add support for using symbols in address filtersAdrian Hunter2016-09-291-0/+737
| | | | | | | | | | | | Symbols come from either the DSO or /proc/kallsyms for the kernel. Details of the functionality can be found in Documentation/perf-record.txt. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Link: http://lkml.kernel.org/r/1474641528-18776-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add coresight etm PMU record capabilitiesMathieu Poirier2016-09-221-0/+1
| | | | | | | | | | | | | | | Coresight ETMs are IP blocks used to perform HW assisted tracing on a CPU core. This patch introduce the required auxiliary API functions allowing the perf core to interact with a tracer. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1474041004-13956-4-git-send-email-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add support for skipping itrace instructionsAndi Kleen2016-03-301-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using 'perf script' to look at PT traces it is often useful to ignore the initialization code at the beginning. On larger traces which may have many millions of instructions in initialization code doing that in a pipeline can be very slow, with perf script spending a lot of CPU time calling printf and writing data. This patch adds an extension to the --itrace argument that skips 'n' events (instructions, branches or transactions) at the beginning. This is much more efficient. v2: Add support for BTS (Adrian Hunter) Document in itrace.txt Fix branch check Check transactions and instructions too Committer note: To test intel_pt one needs to make sure VT-x isn't active, i.e. stopping KVM guests on the test machine, as described by Andi Kleen at http://lkml.kernel.org/r/20160301234953.GD23621@tassilo.jf.intel.com Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1459187142-20035-1-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Add perf_evlist pointer to *info_priv_size()Mathieu Poirier2016-01-291-3/+4
| | | | | | | | | | | | | | | | | | | | | | | On some architecture the size of the private header may be dependent on the number of tracers used in the session. As such adding a "struct perf_evlist *" parameter, which should contain all the required information. Also adjusting the existing client of the interface to take the new parameter into account. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Al Grant <al.grant@arm.com> Cc: Chunyan Zhang <zhang.chunyan@linaro.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-doc@vger.kernel.org Cc: Mike Leach <mike.leach@arm.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Rabin Vincent <rabin@rab.in> Cc: Tor Jeremiassen <tor@ti.com> Link: http://lkml.kernel.org/r/1452807977-8069-22-git-send-email-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf subcmd: Create subcmd libraryJosh Poimboeuf2015-12-171-1/+1
| | | | | | | | | | | | | | | Move the subcommand-related files from perf to a new library named libsubcmd.a. Since we're moving files anyway, go ahead and rename 'exec_cmd.*' to 'exec-cmd.*' to be consistent with the naming of all the other files. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/c0a838d4c878ab17fee50998811612b2281355c1.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Add option to synthesize branch stacks on samplesAdrian Hunter2015-09-281-0/+20
| | | | | | | | | | | | Add AUX area tracing option 'l' to synthesize branch stacks on samples just like sample type PERF_SAMPLE_BRANCH_STACK. This is taken into use by Intel PT in a subsequent patch. Based-on-patch-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1443186956-18718-9-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Fix 'instructions' period of zeroAdrian Hunter2015-09-281-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Instruction tracing options (i.e. --itrace) include an option for sampling instructions at an arbitrary period. e.g. --itrace=i10us means make an 'instructions' sample for every 10us of trace. Currently the logic does not distinguish between a period of zero and no period being specified at all, so it gets treated as the default period which is 100000. That doesn't really make sense. Fix it so that zero period is accepted and treated as meaning "as often as possible". In the case of Intel PT that is the same as a period of 1 and a unit of 'instructions' (i.e. --itrace=i1i). Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1443186956-18718-2-git-send-email-adrian.hunter@intel.com [ Add a few lines describing this in the Documentation/intel-pt.txt file ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add Intel BTS supportAdrian Hunter2015-08-211-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel BTS support fits within the new auxtrace infrastructure. Recording is supporting by identifying the Intel BTS PMU, parsing options and setting up events. Decoding is supported by queuing up trace data by thread and then decoding synchronously delivering synthesized event samples into the session processing for tools to consume. Committer note: E.g: [root@felicio ~]# perf record --per-thread -e intel_bts// ls anaconda-ks.cfg apctest.output bin kernel-rt-3.10.0-298.rt56.171.el7.x86_64.rpm libexec lock_page.bpf.c perf.data perf.data.old [ perf record: Woken up 3 times to write data ] [ perf record: Captured and wrote 4.367 MB perf.data ] [root@felicio ~]# perf evlist -v intel_bts//: type: 6, size: 112, { sample_period, sample_freq }: 1, sample_type: IP|TID|IDENTIFIER, read_format: ID, disabled: 1, enable_on_exec: 1, sample_id_all: 1, exclude_guest: 1 dummy:u: type: 1, size: 112, config: 0x9, { sample_period, sample_freq }: 1, sample_type: IP|TID|IDENTIFIER, read_format: ID, disabled: 1, exclude_kernel: 1, exclude_hv: 1, mmap: 1, comm: 1, enable_on_exec: 1, task: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1 [root@felicio ~]# perf script # the navigate in the pager to some interesting place: ls 1843 1 branches: ffffffff810a60cb flush_signal_handlers ([kernel.kallsyms]) => ffffffff8121a522 setup_new_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8121a529 setup_new_exec ([kernel.kallsyms]) => ffffffff8122fa30 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fa5d do_close_on_exec ([kernel.kallsyms]) => ffffffff81767ae0 _raw_spin_lock ([kernel.kallsyms]) ls 1843 1 branches: ffffffff81767af4 _raw_spin_lock ([kernel.kallsyms]) => ffffffff8122fa62 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fa8e do_close_on_exec ([kernel.kallsyms]) => ffffffff8122faf0 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122faf7 do_close_on_exec ([kernel.kallsyms]) => ffffffff8122fa8b do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fa8e do_close_on_exec ([kernel.kallsyms]) => ffffffff8122faf0 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122faf7 do_close_on_exec ([kernel.kallsyms]) => ffffffff8122fa8b do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fa8e do_close_on_exec ([kernel.kallsyms]) => ffffffff8122faf0 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122faf7 do_close_on_exec ([kernel.kallsyms]) => ffffffff8122fa8b do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fa8e do_close_on_exec ([kernel.kallsyms]) => ffffffff8122faf0 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122faf7 do_close_on_exec ([kernel.kallsyms]) => ffffffff8122fa8b do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fa8e do_close_on_exec ([kernel.kallsyms]) => ffffffff8122faf0 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122faf7 do_close_on_exec ([kernel.kallsyms]) => ffffffff8122fa8b do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fa8e do_close_on_exec ([kernel.kallsyms]) => ffffffff8122faf0 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122faf7 do_close_on_exec ([kernel.kallsyms]) => ffffffff8122fa8b do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fac9 do_close_on_exec ([kernel.kallsyms]) => ffffffff8122fad2 do_close_on_exec ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8122fadd do_close_on_exec ([kernel.kallsyms]) => ffffffff8120fc80 filp_close ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8120fcaf filp_close ([kernel.kallsyms]) => ffffffff8120fcb6 filp_close ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8120fcc2 filp_close ([kernel.kallsyms]) => ffffffff812547f0 dnotify_flush ([kernel.kallsyms]) ls 1843 1 branches: ffffffff81254823 dnotify_flush ([kernel.kallsyms]) => ffffffff8120fcc7 filp_close ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8120fccd filp_close ([kernel.kallsyms]) => ffffffff81261790 locks_remove_posix ([kernel.kallsyms]) ls 1843 1 branches: ffffffff812617a3 locks_remove_posix ([kernel.kallsyms]) => ffffffff812617b9 locks_remove_posix ([kernel.kallsyms]) ls 1843 1 branches: ffffffff812617b9 locks_remove_posix ([kernel.kallsyms]) => ffffffff8120fcd2 filp_close ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8120fcd5 filp_close ([kernel.kallsyms]) => ffffffff812142c0 fput ([kernel.kallsyms]) ls 1843 1 branches: ffffffff812142d6 fput ([kernel.kallsyms]) => ffffffff812142df fput ([kernel.kallsyms]) ls 1843 1 branches: ffffffff8121430c fput ([kernel.kallsyms]) => ffffffff810b6580 task_work_add ([kernel.kallsyms]) ls 1843 1 branches: ffffffff810b65ad task_work_add ([kernel.kallsyms]) => ffffffff810b65b1 task_work_add ([kernel.kallsyms]) ls 1843 1 branches: ffffffff810b65c1 task_work_add ([kernel.kallsyms]) => ffffffff810bc710 kick_process ([kernel.kallsyms]) ls 1843 1 branches: ffffffff810bc725 kick_process ([kernel.kallsyms]) => ffffffff810bc742 kick_process ([kernel.kallsyms]) ls 1843 1 branches: ffffffff810bc742 kick_process ([kernel.kallsyms]) => ffffffff810b65c6 task_work_add ([kernel.kallsyms]) ls 1843 1 branches: ffffffff810b65c9 task_work_add ([kernel.kallsyms]) => ffffffff81214311 fput ([kernel.kallsyms]) Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1437150840-31811-9-git-send-email-adrian.hunter@intel.com [ Merged sample->time fix for bug found after first round of testing on slightly older kernel ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Take Intel PT into useAdrian Hunter2015-08-171-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To record an AUX area, the weak function auxtrace_record__init() must be implemented. Equally to decode an AUX area, the AUX area tracing type must be added to the perf_event__process_auxtrace_info() function. This patch makes those two changes plus hooks up default config for the intel_pt PMU. Also some brief documentation is provided for using the tools with intel_pt. Commiter note: E.g: [root@perf4 ~]# dmesg 451 [0.405807] Performance Events: PEBS fmt2+, 16-deep LBR, Broadwell events, full-width counters, Intel PMU driver. [root@perf4 ~]# perf --version perf version 4.1.g53874a [root@perf4 ~]# perf record -e intel_pt//u -a sleep 10 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.383 MB perf.data ] [root@perf4 ~]# perf evlist intel_pt//u sched:sched_switch dummy:u [root@perf4 ~]# perf report --stdio # To display the perf.data header info, please use --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 0 of event 'intel_pt//u' # Event count (approx.): 0 # # Overhead Command Shared Object Symbol # ........ ....... ............. ...... # # Samples: 393 of event 'sched:sched_switch' # Event count (approx.): 393 # # Overhead Command Shared Object Symbol # ........ .............. ................ .............. 49.62% swapper [kernel.vmlinux] [k] __schedule 10.69% rcu_sched [kernel.vmlinux] [k] __schedule 6.62% rcuos/0 [kernel.vmlinux] [k] __schedule 5.60% kworker/0:1 [kernel.vmlinux] [k] __schedule 3.56% rcuos/3 [kernel.vmlinux] [k] __schedule 3.05% kworker/u384:2 [kernel.vmlinux] [k] __schedule 2.54% kworker/2:0 [kernel.vmlinux] [k] __schedule 2.54% tuned [kernel.vmlinux] [k] __schedule <SNIP> # Samples: 0 of event 'dummy:u' # Event count (approx.): 0 # # Overhead Command Shared Object Symbol # ........ ....... ............. ...... # Samples: 28 of event 'instructions:u' # Event count (approx.): 5030172 # # Overhead Command Shared Object Symbol # ........ .......... ................... ................................ # 21.43% tuned libpython2.7.so.1.0 [.] PyEval_EvalFrameEx | ---PyEval_EvalFrameEx | |--83.33%-- PyEval_EvalCodeEx | PyEval_EvalFrameEx | | | |--60.00%-- PyEval_EvalCodeEx | | PyEval_EvalFrameEx | | PyEval_EvalFrameEx | | | --40.00%-- PyEval_EvalFrameEx | --16.67%-- PyEval_EvalFrameEx PyEval_EvalCodeEx PyEval_EvalFrameEx PyEval_EvalCodeEx PyEval_EvalFrameEx PyEval_EvalFrameEx 14.29% tuned libpython2.7.so.1.0 [.] _PyType_Lookup | ---_PyType_Lookup _PyObject_GenericGetAttrWithDict PyEval_EvalFrameEx PyEval_EvalCodeEx PyEval_EvalFrameEx PyEval_EvalCodeEx PyEval_EvalFrameEx | |--75.00%-- PyEval_EvalFrameEx | --25.00%-- PyEval_EvalCodeEx PyEval_EvalFrameEx PyEval_EvalFrameEx 3.57% irqbalance irqbalance [.] 0x0000000000004038 | ---0x4038 0x4761 0x4761 0x4761 0x49f1 0x2295 3.57% irqbalance libc-2.17.so [.] __GI_____strtoull_l_internal | ---__GI_____strtoull_l_internal 0x6f49 0x229a 3.57% irqbalance libc-2.17.so [.] __strchrnul | ---__strchrnul vfprintf __vsprintf_chk __sprintf_chk 0x2724 0x4038 0x2331 3.57% irqbalance libc-2.17.so [.] __strstr_sse42 | ---__strstr_sse42 0x71e0 0x229f # And now to some userspace ftrace on uninstrumented binaries 8-) : # Hand edited to make it a bit more compact, replacing /home/acme/bin/perf # with /bin/perf: [root@perf4 ~]# perf script perf 8921 [3] 7.310889: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310889: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310889: 1 branches:u: 481694 perf_evlist__enable (/bin/perf) => 481614 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310889: 1 branches:u: 481630 perf_evlist__enable (/bin/perf) => 4816d8 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310889: 1 branches:u: 4816de perf_evlist__enable (/bin/perf) => 48164f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310889: 1 branches:u: 481652 perf_evlist__enable (/bin/perf) => 48165f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310889: 1 branches:u: 481684 perf_evlist__enable (/bin/perf) => 41d250 ioctl@plt (/bin/perf) perf 8921 [3] 7.310889: 1 branches:u: 41d250 ioctl@plt (/bin/perf) => 7fcecadbf250 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310889: 1 branches:u: 7fcecadbf255 __GI___ioctl (/usr/lib64/libc-2.17.so) => 0 [unknown] ([unknown]) perf 8921 [3] 7.310890: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310890: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310890: 1 branches:u: 481694 perf_evlist__enable (/bin/perf) => 481614 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310890: 1 branches:u: 481652 perf_evlist__enable (/bin/perf) => 48165f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310890: 1 branches:u: 481684 perf_evlist__enable (/bin/perf) => 41d250 ioctl@plt (/bin/perf) perf 8921 [3] 7.310890: 1 branches:u: 41d250 ioctl@plt (/bin/perf) => 7fcecadbf250 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310890: 1 branches:u: 7fcecadbf255 __GI___ioctl (/usr/lib64/libc-2.17.so) => 0 [unknown] ([unknown]) perf 8921 [3] 7.310893: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310893: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310893: 1 branches:u: 4816a8 perf_evlist__enable (/bin/perf) => 4815f8 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310893: 1 branches:u: 4815fe perf_evlist__enable (/bin/perf) => 481614 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310893: 1 branches:u: 481652 perf_evlist__enable (/bin/perf) => 48165f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310893: 1 branches:u: 481684 perf_evlist__enable (/bin/perf) => 41d250 ioctl@plt (/bin/perf) perf 8921 [3] 7.310893: 1 branches:u: 41d250 ioctl@plt (/bin/perf) => 7fcecadbf250 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310893: 1 branches:u: 7fcecadbf255 __GI___ioctl (/usr/lib64/libc-2.17.so) => 0 [unknown] ([unknown]) perf 8921 [3] 7.310956: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310956: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310956: 1 branches:u: 481694 perf_evlist__enable (/bin/perf) => 481614 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310956: 1 branches:u: 481630 perf_evlist__enable (/bin/perf) => 4816d8 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310956: 1 branches:u: 4816de perf_evlist__enable (/bin/perf) => 48164f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310956: 1 branches:u: 481652 perf_evlist__enable (/bin/perf) => 48165f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310956: 1 branches:u: 481684 perf_evlist__enable (/bin/perf) => 41d250 ioctl@plt (/bin/perf) perf 8921 [3] 7.310956: 1 branches:u: 41d250 ioctl@plt (/bin/perf) => 7fcecadbf250 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310956: 1 branches:u: 7fcecadbf255 __GI___ioctl (/usr/lib64/libc-2.17.so) => 0 [unknown] ([unknown]) perf 8921 [3] 7.310961: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310961: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310961: 1 branches:u: 481694 perf_evlist__enable (/bin/perf) => 481614 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310961: 1 branches:u: 481652 perf_evlist__enable (/bin/perf) => 48165f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310961: 1 branches:u: 481684 perf_evlist__enable (/bin/perf) => 41d250 ioctl@plt (/bin/perf) perf 8921 [3] 7.310961: 1 branches:u: 41d250 ioctl@plt (/bin/perf) => 7fcecadbf250 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310961: 1 branches:u: 7fcecadbf255 __GI___ioctl (/usr/lib64/libc-2.17.so) => 0 [unknown] ([unknown]) perf 8921 [3] 7.310968: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310968: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310968: 1 branches:u: 4816a8 perf_evlist__enable (/bin/perf) => 4815f8 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310968: 1 branches:u: 4815fe perf_evlist__enable (/bin/perf) => 481614 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310968: 1 branches:u: 481652 perf_evlist__enable (/bin/perf) => 48165f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.310968: 1 branches:u: 481684 perf_evlist__enable (/bin/perf) => 41d250 ioctl@plt (/bin/perf) perf 8921 [3] 7.310968: 1 branches:u: 41d250 ioctl@plt (/bin/perf) => 7fcecadbf250 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.310968: 1 branches:u: 7fcecadbf255 __GI___ioctl (/usr/lib64/libc-2.17.so) => 0 [unknown] ([unknown]) perf 8921 [3] 7.311040: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.311040: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.311040: 1 branches:u: 481694 perf_evlist__enable (/bin/perf) => 481614 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.311040: 1 branches:u: 481630 perf_evlist__enable (/bin/perf) => 4816d8 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.311040: 1 branches:u: 4816de perf_evlist__enable (/bin/perf) => 48164f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.311040: 1 branches:u: 481652 perf_evlist__enable (/bin/perf) => 48165f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.311040: 1 branches:u: 481684 perf_evlist__enable (/bin/perf) => 41d250 ioctl@plt (/bin/perf) perf 8921 [3] 7.311040: 1 branches:u: 41d250 ioctl@plt (/bin/perf) => 7fcecadbf250 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.311040: 1 branches:u: 7fcecadbf255 __GI___ioctl (/usr/lib64/libc-2.17.so) => 0 [unknown] ([unknown]) perf 8921 [3] 7.311046: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.311046: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.311046: 1 branches:u: 481694 perf_evlist__enable (/bin/perf) => 481614 perf_evlist__enable (/bin/perf) perf 8921 [3] 7.311046: 1 branches:u: 481652 perf_evlist__enable (/bin/perf) => 48165f perf_evlist__enable (/bin/perf) perf 8921 [3] 7.311046: 1 branches:u: 481684 perf_evlist__enable (/bin/perf) => 41d250 ioctl@plt (/bin/perf) perf 8921 [3] 7.311046: 1 branches:u: 41d250 ioctl@plt (/bin/perf) => 7fcecadbf250 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.311046: 1 branches:u: 7fcecadbf255 __GI___ioctl (/usr/lib64/libc-2.17.so) => 0 [unknown] ([unknown]) perf 8921 [3] 7.311050: 1 branches:u: 0 [unknown] ([unknown]) => 7fcecadbf257 __GI___ioctl (/usr/lib64/libc-2.17.so) perf 8921 [3] 7.311050: 1 branches:u: 7fcecadbf25f __GI___ioctl (/usr/lib64/libc-2.17.so) => 481689 perf_evlist__enable (/bin/perf) : Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1437150840-31811-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Add Intel PT as an AUX area tracing typeAdrian Hunter2015-08-171-0/+1
| | | | | | | | | | Add the Intel Processor Trace type constant PERF_AUXTRACE_INTEL_PT. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1437150840-31811-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Fix period type 'i' not workingAdrian Hunter2015-08-061-1/+5
| | | | | | | | | | | | | PERF_ITRACE_PERIOD_INSTRUCTIONS is zero so it got overwritten by the default period type. Fix by checking if the period type was set rather than if the value was zero when applying the default. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1437150840-31811-12-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf auxtrace: Fix misplaced check for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORTAdrian Hunter2015-07-151-5/+5
| | | | | | | | | | | | | | | | | | | Move the checking for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT for AUX area mmaps until after checking if such mmaps are used anyway. Reported-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/55A5023C.7020907@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Allow auxtrace data alignmentAdrian Hunter2015-06-231-0/+7
| | | | | | | | | | Allow auxtrace data to be a multiple of something other than page size. That is needed for BTS where the buffer contains 24-byte records. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1432906425-9911-11-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf thread_map: Don't access the array entries directlyJiri Olsa2015-06-231-2/+2
| | | | | | | | | | | | | | | | Instead provide a method to set the array entries, and another to access the contents. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435012588-9007-2-git-send-email-jolsa@kernel.org [ Split providing the set/get accessors from transforming the entries structs ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 01:49:09 +0000