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  1. 10 10月, 2013 1 次提交
  3. 04 10月, 2013 2 次提交
  5. 19 9月, 2013 1 次提交
  7. 11 9月, 2013 1 次提交
    • S
      perf tools: Add attr->mmap2 support · 5c5e854b
      由 Stephane Eranian 提交于 
      This patch adds support for the new PERF_RECORD_MMAP2 record type
exposed by the kernel. This is an extended PERF_RECORD_MMAP record.

It adds for each file-backed mapping the device major, minor number and
the inode number and generation.

This triplet uniquely identifies the source of a file-backed mapping. It
can be used to detect identical virtual mappings between processes, for
instance.

The patch will prefer MMAP2 over MMAP.
Signed-off-by: NStephane Eranian <eranian@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1377079825-19057-3-git-send-email-eranian@google.com
[ Cope with 314add6b "Change machine__findnew_thread() to set thread pid",
  fix 'perf test' regression test entry affected,
  use perf_missing_features.mmap2 to fallback to not using .mmap2 in older kernels,
  so that new tools can work with kernels where this feature is not present ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      5c5e854b
  9. 30 8月, 2013 1 次提交
  11. 12 8月, 2013 2 次提交
  13. 22 7月, 2013 1 次提交
  15. 16 7月, 2013 1 次提交
  17. 13 7月, 2013 4 次提交
    • J
      perf tools: Centralize default columns init in perf_hpp__init · 2b8bfa6b
      由 Jiri Olsa 提交于 
      Now when diff command is separated from other standard outputs,
we can use perf_hpp__init to initialize all standard columns.

Moving PERF_HPP__OVERHEAD column init back to perf_hpp__init,
and removing extra enable calls.
Signed-off-by: NJiri Olsa <jolsa@redhat.com>
Reviewed-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-nj2xk89tj972tbqswfs498ex@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      2b8bfa6b
    • G
      perf report/top: Add option to collapse undesired parts of call graph · b21484f1
      由 Greg Price 提交于 
      For example, in an application with an expensive function implemented
with deeply nested recursive calls, the default call-graph presentation
is dominated by the different callchains within that function.  By
ignoring these callees, we can collect the callchains leading into the
function and compactly identify what to blame for expensive calls.

For example, in this report the callers of garbage_collect() are
scattered across the tree:

  $ perf report -d ruby 2>- | grep -m10 ^[^#]*[a-z]
      22.03%     ruby  [.] gc_mark
                 --- gc_mark
                    |--59.40%-- mark_keyvalue
                    |          st_foreach
                    |          gc_mark_children
                    |          |--99.75%-- rb_gc_mark
                    |          |          rb_vm_mark
                    |          |          gc_mark_children
                    |          |          gc_marks
                    |          |          |--99.00%-- garbage_collect

If we ignore the callees of garbage_collect(), its callers are coalesced:

  $ perf report --ignore-callees garbage_collect -d ruby 2>- | grep -m10 ^[^#]*[a-z]
      72.92%     ruby  [.] garbage_collect
                 --- garbage_collect
                     vm_xmalloc
                    |--47.08%-- ruby_xmalloc
                    |          st_insert2
                    |          rb_hash_aset
                    |          |--98.45%-- features_index_add
                    |          |          rb_provide_feature
                    |          |          rb_require_safe
                    |          |          vm_call_method
Signed-off-by: NGreg Price <price@mit.edu>
Tested-by: NJiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20130623031720.GW22203@biohazard-cafe.mit.edu
Link: http://lkml.kernel.org/r/20130708115746.GO22203@biohazard-cafe.mit.edu
Cc: Fengguang Wu <fengguang.wu@intel.com>
[ remove spaces at beginning of line, reported by Fengguang Wu ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      b21484f1
    • J
      perf report: Fix perf_session__delete removal · d4ae0a6f
      由 Jiri Olsa 提交于 
      There's no point of having out_delete label with perf_session__delete
call within __cmd_report function, because it's called at the end of the
cmd_report function.

The speed up due to commenting out the perf_session__delete at the end
does not seem relevant anymore. Measured speedup for ~1GB data file with
222466 FORKS events is around 0.5%.

  $ perf report -i perf.data.delete -P perf_session__delete -s parent

  +  99.51%  [other]
  +   0.49%  perf_session__delete
Signed-off-by: NJiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
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/1372161253-22081-6-git-send-email-jolsa@redhat.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      d4ae0a6f
    • J
      perf tools: Do not elide parent symbol column · ad3d6f50
      由 Jiri Olsa 提交于 
      I found the parent symbol column data interesting even
if there's another sorting enabled. Switching it on.

Previous behaviour:
  $ perf report -i perf.data.delete -p perf_session__delete -x

  +   3.60%  perf  perf               [.] __rb_change_child
  +   1.89%  perf  perf               [.] rb_erase
  +   1.89%  perf  perf               [.] rb_erase
  +   1.83%  perf  perf               [.] free@plt

Current behaviour:
  $ perf report -i perf.data.delete -p perf_session__delete -x

  +   3.60%  perf  perf               [.] __rb_change_child        perf_session__delete
  +   1.89%  perf  perf               [.] rb_erase                 perf_session__delete_dead_threads
  +   1.89%  perf  perf               [.] rb_erase                 perf_session__delete_threads
  +   1.83%  perf  perf               [.] free@plt                 perf_session__delete
Signed-off-by: NJiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-r79fn89bhqz16ixa5zmyflrd@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      ad3d6f50
  19. 09 7月, 2013 1 次提交
    • J
      perf tools: Fix -x/--exclude-other option for report command · 0276c22a
      由 Jiri Olsa 提交于 
      Currently we have symbol_conf.exclude_other being set as true every time
so the -x/--exclude-other has nothing to do.

Also we have no way to see the data with symbol_conf.exclude_other being
false which is useful sometimes.

Fixing it by making symbol_conf.exclude_other false by default.

1) Example without -x option:

  $ perf report -i perf.data.delete -p perf_session__delete -s parent

  +  99.91%  [other]
  +   0.08%  perf_session__delete
  +   0.00%  perf_session__delete_dead_threads
  +   0.00%  perf_session__delete_threads

2) Example with -x option:

  $ ./perf report -i perf.data.delete -p perf_session__delete -s parent -x

  +  96.22%  perf_session__delete
  +   1.89%  perf_session__delete_dead_threads
  +   1.89%  perf_session__delete_threads

In Example 1) we get the sorted out data together with the rest
"[other]". This could help us estimate how much time we spent in the
sorted data.

In Example 2) the total is just the sorted data.
Signed-off-by: NJiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-sg8fvu0fyqohf9ur9l38lhkw@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      0276c22a
  21. 28 5月, 2013 8 次提交
  23. 01 4月, 2013 3 次提交
  25. 27 3月, 2013 1 次提交
  27. 16 3月, 2013 2 次提交
  29. 07 2月, 2013 2 次提交
  31. 01 2月, 2013 5 次提交
  33. 25 1月, 2013 2 次提交
  35. 09 12月, 2012 1 次提交
  37. 06 11月, 2012 1 次提交