summaryrefslogtreecommitdiffstats
path: root/tools/power
Commit message (Collapse)AuthorAgeFilesLines
* treewide: convert ISO_8859-1 text comments to utf-8Arnd Bergmann2018-08-232-82/+82
| | | | | | | | | | | | | | | | | | | | | | Almost all files in the kernel are either plain text or UTF-8 encoded. A couple however are ISO_8859-1, usually just a few characters in a C comments, for historic reasons. This converts them all to UTF-8 for consistency. Link: http://lkml.kernel.org/r/20180724111600.4158975-1-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Simon Horman <horms@verge.net.au> [IPVS portion] Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [IIO] Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Acked-by: Rob Herring <robh@kernel.org> Cc: Joe Perches <joe@perches.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'turbostat' of ↵Rafael J. Wysocki2018-07-292-65/+59
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat utility fixes for 4.18 from Len Brown: "Three of them are for regressions since Linux-4.17" * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: version 18.07.27 tools/power turbostat: Read extended processor family from CPUID tools/power turbostat: Fix logical node enumeration to allow for non-sequential physical nodes tools/power turbostat: fix x2apic debug message output file tools/power turbostat: fix bogus summary values tools/power turbostat: fix -S on UP systems tools/power turbostat: Update turbostat(8) RAPL throttling column description
| * tools/power turbostat: version 18.07.27Len Brown2018-07-271-1/+1
| | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: Read extended processor family from CPUIDCalvin Walton2018-07-271-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the reported family on modern AMD processors (e.g. Ryzen, which is family 0x17). Previously these processors all showed up as family 0xf. See the document https://support.amd.com/TechDocs/56255_OSRR.pdf section CPUID_Fn00000001_EAX for how to calculate the family from the BaseFamily and ExtFamily values. This matches the code in arch/x86/lib/cpu.c Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca> Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: Fix logical node enumeration to allow for ↵Prarit Bhargava2018-07-261-56/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | non-sequential physical nodes turbostat fails on some multi-package topologies because the logical node enumeration assumes that the nodes are sequentially numbered, which causes the logical numa nodes to not be enumerated, or enumerated incorrectly. Use a more robust enumeration algorithm which allows for non-seqential physical nodes. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: fix x2apic debug message output fileLen Brown2018-07-261-1/+1
| | | | | | | | | | | | | | A recently added x2apic debug message was hard-coded to stderr. That doesn't work with "-o outfile". Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: fix bogus summary valuesArtem Bityutskiy2018-07-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a regression introduced in commit 8cb48b32a5de ("tools/power turbostat: track thread ID in cpu_topology") Turbostat uses incorrect cores number ('topo.num_cores') - its value is count of logical CPUs, instead of count of physical cores. So it is twice as large as it should be on a typical Intel system. For example, on a 6 core Xeon system 'topo.num_cores' is 12, and on a 52 core Xeon system 'topo.num_cores' is 104. And interestingly, on a 68-core Knights Landing Intel system 'topo.num_cores' is 272, because this system has 4 logical CPUs per core. As a result, some of the turbostat calculations are incorrect. For example, on idle 52-core Xeon system when all cores are ~99% in Core C6 (CPU%c6), the summary (very first) line shows ~48% Core C6, while it should be ~99%. This patch fixes the problem by fixing 'topo.num_cores' calculation. Was: 1. Init 'thread_id' for all CPUs to -1 2. Run 'get_thread_siblings()' which sets it to 0 or 1 3. Increment 'topo.num_cores' when thread_id != -1 (bug!) Now: 1. Init 'thread_id' for all CPUs to -1 2. Run 'get_thread_siblings()' which sets it to 0 or 1 3. Increment 'topo.num_cores' when thread_id is not 0 I did not have a chance to test this on an AMD machine, and only tested on a couple of Intel Xeons (6 and 52 cores). Reported-by: Vladislav Govtva <vladislav.govtva@intel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: fix -S on UP systemsLen Brown2018-07-201-3/+1
| | | | | | | | | | | | | | The -S (system summary) option failed to print any data on a 1-processor system. Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: Update turbostat(8) RAPL throttling column descriptionLen Brown2018-07-171-2/+2
| | | | | | | | | | | | | | Explain that this column may increment for some throttling causes, and may not increment for others. Signed-off-by: Len Brown <len.brown@intel.com>
* | Merge branch 'turbostat' of ↵Rafael J. Wysocki2018-06-212-75/+167
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull turbostat utility changes for 4.18-rc2 from Len Brown. "This includes two regression fixes, plus a couple more random, but worthy, patches." * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: version 18.06.20 tools/power turbostat: add the missing command line switches tools/power turbostat: add single character tokens to help tools/power turbostat: alphabetize the help output tools/power turbostat: fix segfault on 'no node' machines tools/power turbostat: add optional APIC X2APIC columns tools/power turbostat: decode cpuid.1.HT tools/power turbostat: fix show/hide issues resulting from mis-merge
| * tools/power turbostat: version 18.06.20Len Brown2018-06-201-1/+1
| | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: add the missing command line switchesNathan Ciobanu2018-06-201-0/+14
| | | | | | | | | | | | | | Document the missing command line tokens in the help() function. Signed-off-by: Nathan Ciobanu <nathan.d.ciobanu@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: add single character tokens to helpNathan Ciobanu2018-06-201-11/+14
| | | | | | | | | | | | | | | | Improve the help() output by adding the single character tokens (e.g -a). Signed-off-by: Nathan Ciobanu <nathan.d.ciobanu@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: alphabetize the help outputNathan Ciobanu2018-06-201-2/+2
| | | | | | | | | | | | | | | | Sort the command line arguments output of help() in alphabetical order in line with other linux tools. Signed-off-by: Nathan Ciobanu <nathan.d.ciobanu@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: fix segfault on 'no node' machinesNathan Ciobanu2018-06-201-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | Running turbostat on machines that don't expose nodes in sysfs (no /sys/bus/node) causes a segfault or a -nan value diesplayed in the log. This is caused by physical_node_id being reported as -1 and logical_node_id being calculated as a negative number resulting in the new GET_THREAD/GET_CORE returning an incorrect address. Signed-off-by: Nathan Ciobanu <nathan.d.ciobanu@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: add optional APIC X2APIC columnsLen Brown2018-06-202-9/+68
| | | | | | | | | | | | | | | | | | | | | | Add APIC and X2APIC columns to the topology section. They are disabled-by-default -- enable like so: --debug or --enable APIC,X2APIC Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: decode cpuid.1.HTLen Brown2018-06-201-1/+2
| | | | | | | | | | | | | | eg. the "HT" here: CPUID(1): SSE3 MONITOR - EIST TM2 TSC MSR ACPI-TM HT TM Signed-off-by: Len Brown <len.brown@intel.com>
| * tools/power turbostat: fix show/hide issues resulting from mis-mergeLen Brown2018-06-201-52/+54
| | | | | | | | | | | | | | | | The --show and --hide options failed on "Node", which was listed as "Node%". The --show and --hide options were generally fouled-up do due to come content merges that scrambled the list of column name indexes. Signed-off-by: Len Brown <len.brown@intel.com>
* | docs: Fix some broken referencesMauro Carvalho Chehab2018-06-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As we move stuff around, some doc references are broken. Fix some of them via this script: ./scripts/documentation-file-ref-check --fix Manually checked if the produced result is valid, removing a few false-positives. Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Coly Li <colyli@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
* | Merge tag 'linux-cpupower-4.18-rc1' of ↵Rafael J. Wysocki2018-06-064-16/+45
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux Pull cpupower updates for v4.18-rc1 from Shuah Khan: "This cpupower update for 4.18-rc1 consists of two minor fixes." * tag 'linux-cpupower-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux: cpupower : Fix header name to read idle state name cpupower: fix spelling mistake: "logilename" -> "logfilename"
| * | cpupower : Fix header name to read idle state nameAbhishek Goel2018-05-293-15/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The names of the idle states in the output of cpupower monitor command are truncated to 4 characters. On POWER9, this creates ambiguity as the states are named "stop0", "stop1", etc. root:~# cpupower monitor |Idle_Stats PKG |CORE|CPU | snoo | stop | stop | stop | stop | stop | stop 0| 0| 0| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 1.90 0| 0| 1| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 0| 0| 2| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 0| 0| 3| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 This patch modifies the output to print the state name that results in a legible output. The names will be printed with atmost 1 padding in left. root:~# cpupower monitor | Idle_Stats PKG|CORE| CPU|snooze|stop0L| stop0|stop1L| stop1|stop2L| stop2 0| 0| 0| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.72 0| 0| 1| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 0| 0| 2| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 0| 0| 3| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00 This patch does not affect the output for intel. Output for intel before applying the patch: root:~# cpupower monitor |Idle_Stats CPU | POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S | C9-S | C10- 0| 0.00| 0.14| 0.39| 0.35| 7.41| 0.00| 17.67| 1.01| 70.03 2| 0.00| 0.19| 0.47| 0.10| 6.50| 0.00| 29.66| 2.17| 58.07 1| 0.00| 0.11| 0.50| 1.50| 9.11| 0.18| 18.19| 0.40| 66.63 3| 0.00| 0.67| 0.42| 0.03| 5.84| 0.00| 12.58| 0.77| 77.14 Output for intel after applying the patch: root:~# cpupower monitor | Idle_Stats CPU| POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S | C9-S | C10- 0| 0.03| 0.33| 1.01| 0.27| 3.03| 0.00| 19.18| 0.00| 71.24 2| 0.00| 1.58| 0.58| 0.42| 8.55| 0.09| 21.11| 0.99| 63.32 1| 0.00| 1.26| 0.88| 0.43| 9.00| 0.02| 7.78| 4.65| 71.91 3| 0.00| 0.30| 0.42| 0.06| 13.62| 0.21| 30.29| 0.00| 52.45 Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com> Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
| * | cpupower: fix spelling mistake: "logilename" -> "logfilename"Colin Ian King2018-05-101-1/+1
| | | | | | | | | | | | | | | | | | | | | Trivial fix to spelling mistake in dprintf message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
* | | Merge back earlier PM tools material for v4.18.Rafael J. Wysocki2018-06-034-157/+302
|\ \ \ | |_|/ |/| |
| * | PM / tools: pm-graph: upgrade to v5.1Todd E Brandt2018-05-273-138/+267
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | general changes: - make python dependent on version2 to enable clearlinux - upgrade dmesg error/warning extraction to be more detailed - enable logs generated from -cmd runs to be processed in gzip form - add notification on power mode entry failure into the timeline - add -battery option to show if battery is connected and its charge summary changes (output of -summary): - add -genhtml option to regenerate missing timelines from logs found - add min/max/median/avg data to the summary page with links to the data - add highlight to minimum, maximum, and median tests - add result column to summary (pass or fail) with red highlight on fail - add issues column to summary with a list of dmesg err/warn/bugs Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | tools/power/x86/intel_pstate_tracer: Add optional setting of trace buffer ↵Doug Smythies2018-05-171-19/+35
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | memory allocation Allow the user to override the default trace buffer memory allocation by adding a command line option to override the default. The patch also: Adds a SIGINT (i.e. CTRL C exit) handler, so that things can be cleaned up before exit. Moves the postion of some other cleanup from after to before the potential "No valid data to plot" exit. Replaces all quit() calls with sys.exit, because quit() is not supposed to be used in scripts. Signed-off-by: Doug Smythies <dsmythies@telus.net> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | tools/power turbostat: update version numberLen Brown2018-06-011-1/+1
| | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: Add Node in outputPrarit Bhargava2018-06-011-0/+16
| | | | | | | | | | | | | | Output a Node column if there is more than one node/socket. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: add node information into turbostat calculationsPrarit Bhargava2018-06-011-58/+85
| | | | | | | | | | | | | | | | | | | | | | The previous patches have added node information to turbostat, but the counters code does not take it into account. Add node information from cpu_topology calculations to turbostat counters. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: remove num_ from cpu_topology structPrarit Bhargava2018-06-011-25/+23
| | | | | | | | | | | | | | | | Cleanup, remove num_ from num_nodes_per_pkg, num_cores_per_node, and num_threads_per_node. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: rename num_cores_per_pkg to num_cores_per_nodePrarit Bhargava2018-06-011-12/+14
| | | | | | | | | | | | | | | | | | | | | | turbostat incorrectly assumes that there is one node per package. As a result num_cores_per_pkg is not correctly named and is actually num_cores_per_node. Rename num_cores_per_pkg to num_cores_per_node. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: track thread ID in cpu_topologyPrarit Bhargava2018-06-011-66/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The code can be simplified if the cpu_topology *cpus tracks the thread IDs. This removes an additional file lookup and simplifies the counter initialization code. Add thread ID to cpu_topology information and cleanup the counter initialization code. v2: prevent thread_id from being overwritten Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: Calculate additional node information for a packagePrarit Bhargava2018-06-011-4/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code currently assumes each package has exactly one node. This is not the case for AMD systems and Intel systems with COD. AMD systems also may re-enumerate each node's core IDs starting at 0 (for example, an AMD processor may have two nodes, each with core IDs from 0 to 7). In order to properly enumerate the cores we need to track both the physical and logical node IDs. Add physical_node_id to track the node ID assigned by the kernel, and logical_node_id used by turbostat to track the nodes per package ie) a 0-based count within the package. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: Fix node and siblings lookup dataLen Brown2018-06-011-35/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The turbostat code only looks at thread_siblings_list to determine if processing units/threads are on the same the core. This works well on Intel systems which have a shared L1 instruction and data cache. This does not work on AMD systems which have shared L1 instruction cache but separate L1 data caches. Other utilities also check sibling's core ID to determine if the processing unit shares the same core. Additionally, the cpu_topology *cpus list used in topology_probe() can be used elsewhere in the code to simplify things. Export *cpus to the entire turbostat code, and add Processing Unit/Thread IDs information to each cpu_topology struct. Confirm that the thread is on the same core as indicated by thread_siblings_list. [v2]: Fixup CPU_* usage that caused gcc malloc error. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: set max_num_cpus equal to the cpumask lengthPrarit Bhargava2018-06-011-5/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | Future fixes will use sysfs files that contain cpumask output. The code needs to know the length of the cpumask in order to determine which cpus are set in a cpumask. Currently topo.max_cpu_num is the maximum cpu number. It can be increased the the maximum value of cpus represented in cpumasks. Set max_num_cpus to the length of a cpumask. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: if --num_iterations, print for specific number of ↵Chen Yu2018-06-012-1/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iterations There's a use case during test to only print specific round of iterations if --num_iterations is specified, for example, with this patch applied: turbostat -i 5 -n 4 will capture 4 samples with 5 seconds interval. [lenb: renamed to --num_iterations from --iterations] Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Chen Yu <yu.c.chen@intel.com> Reviewed-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: Add Cannon Lake supportSrinivas Pandruvada2018-06-011-3/+24
| | | | | | | | | | | | | | | | | | | | All MSRs related to turbostat are same as Kabylake. Even though SDM claims that core C3 residency can be read from MSR 0x662, the read on this MSR fails on CNL platform. Hence disabled C3 MSR read and display. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: delete duplicate #definesLen Brown2018-06-011-3/+0
| | | | | | | | | | | | | | | | The SNB_C1_AUTO_UNDEMOTE definition should have been deleted once it was copied into msr-index.h. One copy of the truth is better -- particularly when Matt needs to fix it:-) Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: Correct SNB_C1/C3_AUTO_UNDEMOTE definesMatt Turner2018-06-011-2/+2
| | | | | | | | | | | | | | | | | | According to the Intel Software Developers' Manual, Vol. 4, Order No. 335592, these macros have been reversed since they were added. Fixes: 889facbee3e6 ("tools/power turbostat: v3.0: monitor Watts and Temperature") Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: add POLL and POLL% columnLen Brown2018-06-011-5/+6
| | | | | | | | | | | | | | | | | | | | Like the "C1" and "C1%" column, the new POLL and POLL% columns show invocations and residency% during the measurement interval. While it didn't seem important to track in the past, we've recently found some Linux cpuidle bugs related to POLL%. Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: Fix --hide Pk%pc10Len Brown2018-06-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The column header for PC10 residency is "Pk%pc10" This is missing the 'g' that others have, eg Pkg%pc6, to allow tab-delimited columns to fit into 8-columns. However, --hide Pk%pc10 did not work, it was still looking for the 'g'. This was confusing, because --list shows the correct "Pk%pc10" Reported-by: Wendy Wang <wendy.wang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: Build-in "Low Power Idle" counters supportLen Brown2018-06-011-0/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 4.15 exports the ACPI Low Power Idle Table's counters in /sys/devices/system/cpu/cpuidle/ low_power_idle_cpu_residency_us Show this in the "CPU%LPI" column. Today this reflects the "North Complex" residency in PC10, so expect it to closely follow "Pk%pc10". low_power_idle_system_residency_us Show this in the "SYS%LPI" column. Today, this reflects the North is in PC10, plus the PCH is sufficiently quiescent to save additional power via the "S0ix" system state, as measured by the PCH SLP_S0 counter. Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: Don't make man pages executableLaura Abbott2018-06-012-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | rpm-lint flagged these as being executable: kernel-tools.x86_64: W: spurious-executable-perm /usr/share/man/man8/turbostat.8.gz kernel-tools.x86_64: W: spurious-executable-perm /usr/share/man/man8/x86_energy_perf_policy.8.gz Fix this Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: remove blank linesLen Brown2018-06-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the user reuests to collect and show columns that are not present on every row (eg. for every CPU) turbostat still prints an (empty) line for every CPU. Update so no blank lines are printed. old: # turbostat --quiet --show Pkg%pc6 Pkg%pc6 9.12 9.12 Pkg%pc6 9.12 9.12 new: # turbostat --quiet --show Pkg%pc6 Pkg%pc6 9.12 9.12 Pkg%pc6 9.12 9.12 Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: a small C-states dump readability immprovementArtem Bityutskiy2018-06-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Improve readability a little bit by changing this output: MSR_PKG_CST_CONFIG_CONTROL: 0x00008407 (locked: pkg-cstate-limit=7: unlimited, automatic-c-state-conversion=off) with this output: MSR_PKG_CST_CONFIG_CONTROL: 0x00008407 (locked, pkg-cstate-limit=7 (unlimited), automatic-c-state-conversion=off) Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: dump BDX, SKX automatic C-state conversion bitArtem Bityutskiy2018-06-011-1/+18
| | | | | | | | | | | | | | | | | | | | BDX and SKX have a bit that tells them to PROMOTE shallow C-states requests to MWAIT(C6). It is generally a BIOS bug if this bit is set. As we have encountered that BIOS bug, let's print this bit in turbostat debug output. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: do not hard-code 25MHz crystal on SKXLen Brown2018-06-011-1/+0
| | | | | | | | | | | | | | | | | | Some SKX use a 24 MHz crystal, so do not hard code 25 MHz. Also, SKX crystal is not exact, because SKX uses an EMI reduction circuit that costs a fraction of a percent. Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: fix possible sprintf buffer overflowLen Brown2018-06-011-1/+1
| | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: fix MSR_IA32_MISC_ENABLE MWAIT printoutLen Brown2018-06-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | MSR_IA32_MISC_ENABLE[18] is the MWAIT ENABLE bit, not DISABLE bit... so MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST No-MWAIT PREFETCH TURBO) should print as: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT PREFETCH TURBO) Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: fix printing on inputArtem Bityutskiy2018-06-011-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent patch that implements table printing on a keypress introduced a regression - turbostat prints the table almost continuously if it is run from a daemon program. The problem is also easy to reproduce like this: echo | turbostat The reason is that we cannot assume that stdin is always a TTY. It can be many things. This patch adds fixes the problem by limiting the new keypress functionality to TTYs only. If stdin is not a TTY, we just sleep for the full interval time. While on it, clean-up 'do_sleep()' to return no value, as callers do not expect that anyway. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | tools/power turbostat: end current interval upon newline inputLen Brown2018-06-012-6/+44
| | | | | | | | | | | | | | | | | | | | | | | | In turbostat interval mode, a newline typed on standard input will now conclude the current interval. Data will immediately be collected and printed for that interval, and the next interval will be started. This is similar to the recently added SIGUSR1 feature. But that is for use by programs, while this is for interactive use. Signed-off-by: Len Brown <len.brown@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 03:26:43 +0000