1. 15 10月, 2014 2 次提交
    • A
      perf tools: Remove hists from evsel · a635fc51
      Arnaldo Carvalho de Melo 提交于
      Now tools that deals want to have an hists per evsel need to call
      hists__init() before creating any evsels, which can be as early as when
      parsing the command line, so do it before calling parse_options().
      
      The current tools using hists/hist_entries are report, top and annotate,
      change them to request per evsel hists.
      
      This is in preparation for making evsels usable by 3rd party tools, that
      not necessarily live in perf's source code repository.
      Acked-by: NBorislav Petkov <bp@suse.de>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Don Zickus <dzickus@redhat.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jean Pihet <jean.pihet@linaro.org>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/n/tip-usjx2la743f10ippj7p1b20x@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      a635fc51
    • A
      perf callchain: Move the callchain_param extern to callchain.h · 8f651eae
      Arnaldo Carvalho de Melo 提交于
      It was lost in hist.h, move it to where it belongs, callchain.h, as
      there are places that gets hist.h by means of evsel.h, and since evsel.h
      is being untangled from hist.h...
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Don Zickus <dzickus@redhat.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jean Pihet <jean.pihet@linaro.org>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/n/tip-0rg7ji1jnbm6q6gj35j37jby@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      8f651eae
  2. 14 10月, 2014 1 次提交
    • A
      perf session: Remove last reference to hists struct · 2a1731fb
      Arnaldo Carvalho de Melo 提交于
      Now perf_session doesn't require that the evsels in its evlist are hists
      containing ones.
      
      Tools that are hists based and want to do per evsel events_stats
      updates, if at some point this turns into a necessity, should do it in
      the tool specific code, keeping the session class hists agnostic.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Don Zickus <dzickus@redhat.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jean Pihet <jean.pihet@linaro.org>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/n/tip-cli1bgwpo82mdikuhy3djsuy@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      2a1731fb
  3. 11 10月, 2014 1 次提交
  4. 14 8月, 2014 1 次提交
  5. 12 8月, 2014 4 次提交
  6. 09 6月, 2014 1 次提交
    • D
      perf tools: Add dcacheline sort · 9b32ba71
      Don Zickus 提交于
      In perf's 'mem-mode', one can get access to a whole bunch of details specific to a
      particular sample instruction.  A bunch of those details relate to the data
      address.
      
      One interesting thing you can do with data addresses is to convert them into a unique
      cacheline they belong too.  Organizing these data cachelines into similar groups and sorting
      them can reveal cache contention.
      
      This patch creates an alogorithm based on various sample details that can help group
      entries together into data cachelines and allows 'perf report' to sort on it.
      
      The algorithm relies on having proper mmap2 support in the kernel to help determine
      if the memory map the data address belongs to is private to a pid or globally shared.
      
      The alogortithm is as follows:
      
      o group cpumodes together
      o group entries with discovered maps together
      o sort on major, minor, inode and inode generation numbers
      o if userspace anon, then sort on pid
      o sort on cachelines based on data addresses
      
      The 'dcacheline' sort option in 'perf report' only works in 'mem-mode'.
      
      Sample output:
      
       #
       # Samples: 206  of event 'cpu/mem-loads/pp'
       # Total weight : 2534
       # Sort order   : dcacheline,pid
       #
       # Overhead       Samples                                                          Data Cacheline       Command:  Pid
       # ........  ............  ......................................................................  ..................
       #
          13.22%             1  [k] 0xffff88042f08ebc0                                                       swapper:    0
           9.27%             1  [k] 0xffff88082e8cea80                                                       swapper:    0
           3.59%             2  [k] 0xffffffff819ba180                                                       swapper:    0
           0.32%             1  [k] arch_trigger_all_cpu_backtrace_handler_na.23901+0xffffffffffffffe0       swapper:    0
           0.32%             1  [k] timekeeper_seq+0xfffffffffffffff8                                        swapper:    0
      
      Note:  Added a '+1' to symlen size in hists__calc_col_len to prevent the next column
      from prematurely tabbing over and mis-aligning.  Not sure what the problem is.
      Signed-off-by: NDon Zickus <dzickus@redhat.com>
      Link: http://lkml.kernel.org/r/1401208087-181977-8-git-send-email-dzickus@redhat.comSigned-off-by: NJiri Olsa <jolsa@kernel.org>
      9b32ba71
  7. 04 6月, 2014 1 次提交
    • J
      perf tools: Move elide bool into perf_hpp_fmt struct · f2998422
      Jiri Olsa 提交于
      After output/sort fields refactoring, it's expensive
      to check the elide bool in its current location inside
      the 'struct sort_entry'.
      
      The perf_hpp__should_skip function gets highly noticable in
      workloads with high number of output/sort fields, like for:
      
        $ perf report -i perf-test.data -F overhead,sample,period,comm,pid,dso,symbol,cpu --stdio
      
      Performance report:
         9.70%  perf  [.] perf_hpp__should_skip
      
      Moving the elide bool into the 'struct perf_hpp_fmt', which
      makes the perf_hpp__should_skip just single struct read.
      
      Got speedup of around 22% for my test perf.data workload.
      The change should not harm any other workload types.
      
      Performance counter stats for (10 runs):
        before:
         358,319,732,626      cycles                    ( +-  0.55% )
         467,129,581,515      instructions              #    1.30  insns per cycle          ( +-  0.00% )
      
           150.943975206 seconds time elapsed           ( +-  0.62% )
      
        now:
         278,785,972,990      cycles                    ( +-  0.12% )
         370,146,797,640      instructions              #    1.33  insns per cycle          ( +-  0.00% )
      
           116.416670507 seconds time elapsed           ( +-  0.31% )
      Acked-by: NNamhyung Kim <namhyung@kernel.org>
      Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
      Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/r/20140601142622.GA9131@krava.brq.redhat.comSigned-off-by: NJiri Olsa <jolsa@kernel.org>
      f2998422
  8. 01 6月, 2014 7 次提交
  9. 21 5月, 2014 8 次提交
  10. 24 4月, 2014 3 次提交
  11. 16 4月, 2014 4 次提交
  12. 19 3月, 2014 1 次提交
  13. 15 3月, 2014 4 次提交
  14. 19 12月, 2013 1 次提交
  15. 06 11月, 2013 1 次提交