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  1. 23 10月, 2009 2 次提交
    • F
      perf tools: Bind callchains to the first sort dimension column · a4fb581b
      由 Frederic Weisbecker 提交于 
      Currently, the callchains are displayed using a constant left
margin. So depending on the current sort dimension
configuration, callchains may appear to be well attached to the
first sort dimension column field which is mostly the case,
except when the first dimension of sorting is done by comm,
because these are right aligned.

This patch binds the callchain to the first letter in the first
column, whatever type of column it is (dso, comm, symbol).
Before:

     0.80%             perf  [k] __lock_acquire
             __lock_acquire
             lock_acquire
             |
             |--58.33%-- _spin_lock
             |          |
             |          |--28.57%-- inotify_should_send_event
             |          |          fsnotify
             |          |          __fsnotify_parent

After:

     0.80%             perf  [k] __lock_acquire
                       __lock_acquire
                       lock_acquire
                       |
                       |--58.33%-- _spin_lock
                       |          |
                       |          |--28.57%-- inotify_should_send_event
                       |          |          fsnotify
                       |          |          __fsnotify_parent

Also, for clarity, we don't put anymore the callchain as is but:

- If we have a top level ancestor in the callchain, start it
  with a first ascii hook.

  Before:

     0.80%             perf  [kernel]                        [k] __lock_acquire
                       __lock_acquire
                         lock_acquire
                       |
                       |--58.33%-- _spin_lock
                       |          |
                       |          |--28.57%-- inotify_should_send_event
                       |          |          fsnotify
                      [..]       [..]

   After:

     0.80%             perf  [kernel]                         [k] __lock_acquire
                       |
                       --- __lock_acquire
                           lock_acquire
                          |
                          |--58.33%-- _spin_lock
                          |          |
                          |          |--28.57%-- inotify_should_send_event
                          |          |          fsnotify
                         [..]       [..]

- Otherwise, if we have several top level ancestors, then
  display these like we did before:

       1.69%           Xorg
                       |
                       |--21.21%-- vread_hpet
                       |          0x7fffd85b46fc
                       |          0x7fffd85b494d
                       |          0x7f4fafb4e54d
                       |
                       |--15.15%-- exaOffscreenAlloc
                       |
                       |--9.09%-- I830WaitLpRing
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Anton Blanchard <anton@samba.org>
LKML-Reference: <1256246604-17156-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      a4fb581b
    • F
      perf tools: Fix missing top level callchain · af0a6fa4
      由 Frederic Weisbecker 提交于 
      While recursively printing the branches of each callchains, we
forget to display the root. It is never printed.

Say we have:

    symbol
    f1
    f2
     |
     -------- f3
     |        f4
     |
     ---------f5
              f6

Actually we never see that, instead it displays:

    symbol
    |
    --------- f3
    |         f4
    |
    --------- f5
              f6

However f1 is always the same than "symbol" and if we are
sorting by symbols first then "symbol", f1 and f2 will be well
aligned like in the above example, so displaying f1 looks
redundant here.

But if we are sorting by something else first (dso, comm,
etc...), displaying f1 doesn't look redundant but rather
necessary because the symbol is not well aligned anymore with
its callchain:

     comm     dso        symbol
     f1
     f2
     |
     --------- [...]

And we want the callchain to be obvious.
So we fix the bug by printing the root branch, but we also
filter its first entry if we are sorting by symbols first.
Reported-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1256246604-17156-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      af0a6fa4
  3. 21 10月, 2009 5 次提交
  5. 20 10月, 2009 6 次提交
    • A
      perf tools: Add ->unmap_ip operation to struct map · ed52ce2e
      由 Arnaldo Carvalho de Melo 提交于 
      We need this because we get section relative addresses when
reading the symtabs, but when a tool like 'perf annotate' needs
to match these address to what 'objdump -dS' produces we need
the address + section back again.

So in annotate now we look at the 'struct hist_entry' instances
(that weren't really being used) so that we iterate only over
the symbols that had some hit and get the map where that
particular hit happened so that we can get the right address to
match with annotate.

Verified that at least:

 perf annotate mmap_read_counter # Uses the ~/bin/perf binary
 perf annotate --vmlinux /home/acme/git/build/perf/vmlinux intel_pmu_enable_all

on a 'perf record perf top' session seems to work.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1255979877-12533-1-git-send-email-acme@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      ed52ce2e
    • A
      perf timechart: Add a process filter · bbe2987b
      由 Arjan van de Ven 提交于 
      During the Kernel Summit demo of perf/ftrace/timechart, there
was a feature request to have a process filter for timechart so
that you can zoom into one or a few processes that you are
really interested in.

This patch adds basic support for this feature, the -p
(--process) option now can select a PID or a process name to be
shown. Multiple -p options are allowed, and the combined set
will be included in the output.
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091020070939.7d0fb8a7@infradead.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      bbe2987b
    • A
      perf timechart: Improve the visual appearance of scheduler delays · 2e600d01
      由 Arjan van de Ven 提交于 
      [from KS feedback]

Currently, scheduler delays are shown in a mostly transparent,
light yellow color. This color is rather hard to see on several
screens, especially projectors.

This patch changes the color of the scheduler delays to be a
much more "hard" yellow that survived the kernel summit
projector.
Reported-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091020064731.20ae126a@infradead.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      2e600d01
    • A
      perf timechart: Fix the wakeup-arrows that point to non-visible processes · 3bc2a39c
      由 Arjan van de Ven 提交于 
      The timechart wakeup arrows currently show no process
information when the waker/wakee are processes that are not
actually chosen to be shown on the timechart.

This patch fixes this oversight, by looking through all
processes (after giving preference to visible processes) as well
as falling back to just showing the PID if no name for the
process can be resolved.
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091020064649.0e4959b2@infradead.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      3bc2a39c
    • A
      perf tools: Add bunch of missing headers to LIB_H · 79b9ad36
      由 Arnaldo Carvalho de Melo 提交于 
      Build dependencies were not properly mapped out.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <1255973491-11626-1-git-send-email-acme@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      79b9ad36
    • A
      perf tools: Add missing tools/perf/util/include/string.h · 20639c15
      由 Arnaldo Carvalho de Melo 提交于 
      To cure a bunch of:

In file included from util/include/linux/bitmap.h:1,
                 from util/header.h:8,
                 from builtin-trace.c:7:
util/include/../../../../include/linux/bitmap.h:8:26: error:
linux/string.h: No such file or directory make: ***
[builtin-trace.o] Error 1 make: *** Waiting for unfinished
jobs....
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1255972296-11500-1-git-send-email-acme@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      20639c15
  7. 19 10月, 2009 9 次提交
    • I
      perf stat: Count branches first · dd86e72a
      由 Ingo Molnar 提交于 
      Count branches first, cache-misses second. The reason is that
on x86 branches are not counted by all counters on all CPUs.

Before:

 Performance counter stats for 'ls':

       0.756653  task-clock-msecs         #      0.802 CPUs
              0  context-switches         #      0.000 M/sec
              0  CPU-migrations           #      0.000 M/sec
            250  page-faults              #      0.330 M/sec
        2375725  cycles                   #   3139.781 M/sec
        1628129  instructions             #      0.685 IPC
          19643  cache-references         #     25.960 M/sec
           4608  cache-misses             #      6.090 M/sec
         342532  branches                 #    452.694 M/sec
  <not counted>  branch-misses

    0.000943356  seconds time elapsed

After:

 Performance counter stats for 'ls':

       1.056734  task-clock-msecs         #      0.859 CPUs
              0  context-switches         #      0.000 M/sec
              0  CPU-migrations           #      0.000 M/sec
            259  page-faults              #      0.245 M/sec
        3345932  cycles                   #   3166.295 M/sec
        3074090  instructions             #      0.919 IPC
         616928  branches                 #    583.806 M/sec
          39279  branch-misses            #      6.367 %
          21312  cache-references         #     20.168 M/sec
           3661  cache-misses             #      3.464 M/sec

    0.001230551  seconds time elapsed

(also prettify the printout of branch misses, in case it's
 getting scaled.)

Cc: Tim Blechmann <tim@klingt.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4ADC3975.8050109@klingt.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-stat.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index c373683..95a55ea 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -59,6 +59,8 @@ static struct perf_event_attr default_attrs[] = {
   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS	},
   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_REFERENCES},
   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_MISSES	},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES	},

 };
---
 tools/perf/builtin-stat.c |   20 ++++++++++----------
 1 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 95a55ea..90e0a26 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -50,17 +50,17 @@

 static struct perf_event_attr default_attrs[] = {

-  { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK	},
-  { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES},
-  { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS	},
-  { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS	},
-
-  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES	},
-  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS	},
-  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_REFERENCES},
-  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_MISSES	},
-  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS},
-  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES	},
+  { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK		},
+  { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES	},
+  { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_MIGRATIONS		},
+  { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS		},
+
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES		},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS		},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_REFERENCES	},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_MISSES		},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS	},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES		},

 };
      dd86e72a
    • I
      perf stat: Re-align the default_attrs[] array · 56aab464
      由 Ingo Molnar 提交于 
      Clean up the array definition to be vertically aligned.

No functional effects.

Cc: Tim Blechmann <tim@klingt.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4ADC3975.8050109@klingt.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
---
 tools/perf/builtin-stat.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index c373683..95a55ea 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -59,6 +59,8 @@ static struct perf_event_attr default_attrs[] = {
   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS	},
   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_REFERENCES},
   { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_MISSES	},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS},
+  { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES	},

 };
      56aab464
    • T
      perf stat: Add branch performance events to default output · 12133aff
      由 Tim Blechmann 提交于 
      Adds performance event information about branches
and branch misses to the default output of perf stat.
Signed-off-by: NTim Blechmann <tim@klingt.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4ADC3975.8050109@klingt.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      12133aff
    • R
      perf tools: Display better error messages on missing packages · 1abc7f55
      由 Randy Dunlap 提交于 
      Check for libelf headers and glibc headers separately so that
the error message correctly identifies which package
installation is missing/needed.
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: paulus@samba.org
Cc: a.p.zijlstra@chello.nl
Cc: efault@gmx.de
Cc: fweisbec@gmail.com
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <4ADBCCE8.3060300@oracle.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      1abc7f55
    • T
      perf top: Fix --delay_secs 0 division by zero · dc79959a
      由 Tim Blechmann 提交于 
      Add delay_secs sanity check to handle_keypress,
this fixes a division by zero crash.
Signed-off-by: NTim Blechmann <tim@klingt.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4AD9EBFD.106@klingt.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      dc79959a
    • F
      perf tools: Use DECLARE_BITMAP instead of an open-coded array · db9f11e3
      由 Frederic Weisbecker 提交于 
      Use DECLARE_BITMAP instead of an open coded array for our bitmap
of featured sections.

This makes the array an unsigned long instead of a u64 but since
we use a 256 bits bitmap, the array size shouldn't vary between
different boxes.
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1255795038-13751-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      db9f11e3
    • F
      perf tools: Introduce bitmask'ed additional headers · 2ba08250
      由 Frederic Weisbecker 提交于 
      This provides a new set of bitmasked headers. A new field is
added in the perf headers that implements a bitmap storing
optional features present in the perf.data file.

The layout can be pictured like this:

(Usual perf headers)(Features bitmap)[Feature 0][Feature
n][Feature 255]

If the bit n is set, then the feature n is used in this file.
They are all set in order. This brings a backward and forward
compatibility.

The trace_info section has moved into such optional features,
this is the first and only one for now.

This is backward compatible with the .32 file version although
it doesn't support the previous separate trace.info file.

And finally it doesn't support the current interim development
version.
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1255792354-11304-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      2ba08250
    • F
      perf tools: Use kernel bitmap library · 5a116dd2
      由 Frederic Weisbecker 提交于 
      Use the kernel bitmap library for internal perf tools uses.
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1255792354-11304-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      5a116dd2
    • A
      perf stat: Add branch performance metric · 11018201
      由 Anton Blanchard 提交于 
      When we count both branches and branch-misses it is useful to
print out the percentage of branch-misses:

 # perf stat -e branches -e branch-misses /bin/true

 Performance counter stats for '/bin/true':

         401684  branches                 #      0.000 M/sec
          23301  branch-misses            #      5.801 %
Signed-off-by: NAnton Blanchard <anton@samba.org>
Cc: paulus@samba.org
Cc: a.p.zijlstra@chello.nl
LKML-Reference: <20091018112923.GQ4808@kryten>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      11018201
  9. 17 10月, 2009 1 次提交
  11. 16 10月, 2009 1 次提交
    • I
      perf tools: Bump version to 0.0.2 · 210f9cb2
      由 Ingo Molnar 提交于 
      We released the first version of perf with 0.0.1 in v2.6.31,
time to double our version number to 0.0.2 ;-)

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      210f9cb2
  13. 15 10月, 2009 14 次提交
  15. 13 10月, 2009 2 次提交