Skip to content

K
Kernel

openeuler / Kernel
1 年多 前同步成功

通知 8
Star 0
Fork 0
K
Kernel
切换分支/标签
  1. 20 11月, 2019 2 次提交
  3. 12 11月, 2019 1 次提交
  5. 25 9月, 2019 1 次提交
  7. 01 9月, 2019 5 次提交
  9. 30 8月, 2019 1 次提交
  11. 26 8月, 2019 3 次提交
  13. 30 7月, 2019 4 次提交
  15. 20 3月, 2019 1 次提交
  17. 12 3月, 2019 1 次提交
    • A
      perf report: Support time sort key · 3723908d
      由 Andi Kleen 提交于 
      Add a time sort key to perf report to display samples for different time
quantums separately. This allows easier analysis of workloads that
change over time, and also will allow looking at the context of samples.

% perf record ...
% perf report --sort time,overhead,symbol --time-quantum 1ms --stdio
...
     0.67%  277061.87300  [.] _dl_start
     0.50%  277061.87300  [.] f1
     0.50%  277061.87300  [.] f2
     0.33%  277061.87300  [.] main
     0.29%  277061.87300  [.] _dl_lookup_symbol_x
     0.29%  277061.87300  [.] dl_main
     0.29%  277061.87300  [.] do_lookup_x
     0.17%  277061.87300  [.] _dl_debug_initialize
     0.17%  277061.87300  [.] _dl_init_paths
     0.08%  277061.87300  [.] check_match
     0.04%  277061.87300  [.] _dl_count_modids
     1.33%  277061.87400  [.] f1
     1.33%  277061.87400  [.] f2
     1.33%  277061.87400  [.] main
     1.17%  277061.87500  [.] main
     1.08%  277061.87500  [.] f1
     1.08%  277061.87500  [.] f2
     1.00%  277061.87600  [.] main
     0.83%  277061.87600  [.] f1
     0.83%  277061.87600  [.] f2
     1.00%  277061.87700  [.] main

Committer notes:

Rename 'time' argument to hist_time() to htime to overcome this in older
distros:

  cc1: warnings being treated as errors
  util/hist.c: In function 'hist_time':
  util/hist.c:251: error: declaration of 'time' shadows a global declaration
  /usr/include/time.h:186: error: shadowed declaration is here
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Acked-by: NJiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20190311144502.15423-4-andi@firstfloor.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      3723908d
  19. 19 2月, 2019 1 次提交
  21. 06 2月, 2019 2 次提交
  23. 18 12月, 2018 2 次提交
    • I
      perf tools: Fix diverse comment typos · adba1634
      由 Ingo Molnar 提交于 
      Go over the tools/ files that are maintained in Arnaldo's tree and
fix common typos: half of them were in comments, the other half
in JSON files.

No change in functionality intended.

Committer notes:

This was split from a larger patch as there are code that is,
additionally, maintained outside the kernel tree, so to ease
cherry-picking and/or backporting, split this into multiple patches.

Just typos in comments, no need to backport, reducing the possibility of
possible backporting artifacts.
Signed-off-by: NIngo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20181203102200.GA104797@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      adba1634
    • J
      perf report: Display average IPC and IPC coverage per symbol · ec6ae74f
      由 Jin Yao 提交于 
      Support displaying the average IPC and IPC coverage per symbol in 'perf
report' --tui and --stdio modes.

For example,

 $ perf record -b ...
 $ perf report -s symbol

 Overhead  Symbol                           IPC   [IPC Coverage]
   39.60%  [.] __random                     2.30  [ 54.8%]
   18.02%  [.] main                         0.43  [ 54.3%]
   14.21%  [.] compute_flag                 2.29  [100.0%]
   14.16%  [.] rand                         0.36  [100.0%]
    7.06%  [.] __random_r                   2.57  [ 70.5%]
    6.85%  [.] rand@plt                     0.00  [  0.0%]

Jiri Olsa <jolsa@redhat.com> provided the patch to support the --stdio
mode. I merged Jiri's code in this patch.

  $ perf report -s symbol --stdio

    # Overhead  Symbol                       IPC   [IPC Coverage]
    # ........  ...........................  ....................
    #
      39.60%  [.] __random                   2.30  [ 54.8%]
      18.02%  [.] main                       0.43  [ 54.3%]
      14.21%  [.] compute_flag               2.29  [100.0%]
      14.16%  [.] rand                       0.36  [100.0%]
       7.06%  [.] __random_r                 2.57  [ 70.5%]
       6.85%  [.] rand@plt                   0.00  [  0.0%]
       0.02%  [k] run_timer_softirq          1.60  [ 57.2%]

The columns "IPC" and "[IPC Coverage]" are automatically enabled when
the sort-key "symbol" is specified. If the perf.data file doesn't
contain timed LBR information, columns are filled with "-".

For example,

  # Overhead  Symbol                       IPC   [IPC Coverage]
  # ........  ...........................  ....................
  #
      46.57%  [.] main                     -      -
      17.60%  [.] rand                     -      -
      15.84%  [.] __random_r               -      -
      11.90%  [.] __random                 -      -
       6.50%  [.] compute_flag             -      -
       1.59%  [.] rand@plt                 -      -
       0.00%  [.] _dl_relocate_object      -      -
       0.00%  [k] tlb_flush_mmu            -      -
       0.00%  [k] perf_event_mmap          -      -
       0.00%  [k] native_sched_clock       -      -
       0.00%  [k] intel_pmu_handle_irq_v4  -      -
       0.00%  [k] native_write_msr         -      -

 v3:
 ---
 Removed the sortkey 'ipc' from command-line. The columns "IPC"
 and "[IPC Coverage]" are automatically enabled when "symbol"
 is specified.

 v2:
 ---
 Merge in Jiri's patch to support stdio mode
Signed-off-by: NJin Yao <yao.jin@linux.intel.com>
Reviewed-by: NIngo Molnar <mingo@kernel.org>
Reviewed-by: NJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1543586097-27632-4-git-send-email-yao.jin@linux.intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      ec6ae74f
  25. 20 9月, 2018 2 次提交
  27. 14 8月, 2018 5 次提交
  29. 04 6月, 2018 3 次提交
  31. 18 5月, 2018 1 次提交
  33. 27 4月, 2018 2 次提交
  35. 02 4月, 2018 1 次提交
    • K
      perf tools: Add a "dso_size" sort order · b74d12d5
      由 Kim Phillips 提交于 
      Add DSO size to perf report/top sort output list.

This includes adding a map__size fn to map.h, which is
approximately equal to the DSO data file_size:

  DSO				file size	map (end-start)	file / (end-start)
  libwebkit2gtk-4.0.so.37.24.9	43260072	41295872	95%
  libglib-2.0.so.0.5400.1		 1125680	 1118208	99%
  libc-2.26.so			 1960656 	 1925120	101%
  libdbus-1.so.3.14.13		  309456 	  303104	102%

Sample output:

  $ ./perf report -s dso_size,dso
  Samples: 2K of event 'cycles:uppp', Event count (approx.): 128373340
  Overhead  DSO size  Shared Object
    90.62%   unknown  [unknown]
     2.87%   1118208  libglib-2.0.so.0.5400.1
     1.92%    303104  libdbus-1.so.3.14.13
     1.42%   1925120  libc-2.26.so
     0.77%  41295872  libwebkit2gtk-4.0.so.37.24.9
     0.61%    335872  libgobject-2.0.so.0.5400.1
     0.41%   1052672  libgdk-3.so.0.2200.25
     0.36%    106496  libpthread-2.26.so
     0.29%    221184  dbus-daemon
     0.17%    159744  ld-2.26.so
     0.13%     49152  libwayland-client.so.0.3.0
     0.12%   1642496  libgio-2.0.so.0.5400.1
     0.09%   73277443  libgtk-3.so.0.2200.25
     0.09%  12324864  libmozjs-52.so.0.0.0
     0.05%   4796416  perf
     0.04%    843776  libgjs.so.0.0.0
     0.03%   1409024  libmutter-clutter-1.so

Committer testing:

To sort by DSO size, use:

  # perf report -F dso_size,dso,overhead -s dso_size
  <SNIP>
     3465216  libdns-export.so.174.0.1   0.00%
     3522560  libgc.so.1.0.3             0.00%
     3538944  libbfd-2.29-13.fc27.so     0.59%
     3670016  libunistring.so.2.1.0      0.00%
     3723264  libguile-2.0.so.22.8.1     0.00%
     3776512  libgio-2.0.so.0.5400.3     0.00%
     3891200  libc-2.26.so               0.96%
     3944448  libmozjs-17.0.so           0.00%
     4218880  libperl.so.5.26.1          0.18%
     4452352  libpython2.7.so.1.0        0.02%
     4472832  perf                       0.02%
     4603904  git                        0.01%
     4751360  libcrypto.so.1.1.0g        0.00%
     5005312  libslang.so.2.3.1          0.00%
     7315456  libgtk-3.so.0.2200.26      0.09%
     8818688  i965_dri.so                2.46%
     8818688  i965_dri.so (deleted)      1.26%
    12414976  libmozjs-52.so.0.0.0       0.03%
    23642112  cc1                        2.02%
    27889664  [kernel.kallsyms]         25.41%
    80834560  libxul.so (deleted)       15.68%
    98078720  chrome                    32.03%
  1056964608  [kernel.kallsyms]          1.59%
  #
Signed-off-by: NKim Phillips <kim.phillips@arm.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180327060956.1c01ebe67a2a941bb4468c6f@arm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      b74d12d5
  37. 16 2月, 2018 1 次提交
  39. 18 1月, 2018 1 次提交
    • A
      perf tools: Use ui__error() for reporting --fields errors · 56271170
      由 Arnaldo Carvalho de Melo 提交于 
      So that we can get it working for TUI, where using just pr_err() would
end up making the message emitted to stderr to be erased by the TUI exit
routine restoring the terminal to its previous state.

Now we can see that trying to use a tracepoint field as one of the
--field entries isn't working:

  # perf top --stdio --no-children -e syscalls:sys_enter_write --fields pid,sym,count
  Error:
  Unknown --fields key: `count'
   Usage: perf top [<options>]

        --fields <key[,keys...]>
                          output field(s): overhead, period, sample plus all of sort keys
  #

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-usy9hhy7umdd4bbblkn63t8w@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      56271170