1. 19 4月, 2010 1 次提交
  2. 28 2月, 2010 1 次提交
    • H
      perf lock: Fix and add misc documentally things · 84c6f88f
      Hitoshi Mitake 提交于
      I've forgot to add 'perf lock' line to command-list.txt,
      so users of perf could not find perf lock when they type 'perf'.
      
      Fixing command-list.txt requires document
      (tools/perf/Documentation/perf-lock.txt).
      But perf lock is too much "under construction" to write a
      stable document, so this is something like pseudo document for now.
      
      And I wrote description of perf lock at help section of
      CONFIG_LOCK_STAT, this will navigate users of lock trace events.
      Signed-off-by: NHitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
      LKML-Reference: <1265267295-8388-1-git-send-email-mitake@dcl.info.waseda.ac.jp>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      84c6f88f
  3. 21 1月, 2010 1 次提交
    • A
      perf buildid-cache: Add new command to manage build-id cache · ef12a141
      Arnaldo Carvalho de Melo 提交于
      For now it just has operations to examine a given file, find its
      build-id and add or remove it to/from the cache.
      
      Useful, for instance, when adding binaries sent together with a
      perf.data file, so that we can add them to the cache and have
      the tools find it when resolving symbols.
      
      It'll also manage the size of the cache like 'ccache' does.
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Frédéric Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Paul Mackerras <paulus@samba.org>
      LKML-Reference: <1264008525-29025-1-git-send-email-acme@infradead.org>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      ef12a141
  4. 20 1月, 2010 1 次提交
  5. 16 1月, 2010 1 次提交
    • A
      perf archive: Add helper script to package files needed to do analysis · 2c585174
      Arnaldo Carvalho de Melo 提交于
      It uses 'perf buildid-list --with-hits' to create a tarball with
      what is needed to have in the destination machine ~/.debug
      hierarchy to properly decode the perf.data file specified.
      
      Here is an example where a perf.data file collected on a x86-64
      machine running Fedora 12 is used and then the data is packaged,
      transferred and decoded on a PARISC64 machine running Debian
      Testing, 32-bit userspace:
      
      [root@doppio linux-2.6-tip]# uname -a
      Linux doppio.ghostprotocols.net 2.6.33-rc4-tip+ #3 SMP Wed Jan 13 11:58:15 BRST 2010 x86_64 x86_64 x86_64 GNU/Linux
      [root@doppio linux-2.6-tip]# perf archive
      [root@doppio linux-2.6-tip]# ls -la perf.data*
      -rw------- 1 root root  737696 2010-01-14 23:36 perf.data
      -rw-r--r-- 1 root root 8840025 2010-01-15 12:27 perf.data.tar.bz2
      [root@doppio linux-2.6-tip]# scp perf.data.* parisc64:.
      Password:
      perf.data.tar.bz2                                      100% 8633KB   1.4MB/s   00:06
      [root@doppio linux-2.6-tip]# ssh parisc64
      Password:
      Linux parisc 2.6.19-g2bbf29ac-dirty #1 Sun Dec 3 17:24:04 BRST 2006 parisc64
      
      The programs included with the Debian GNU/Linux system are free software;
      the exact distribution terms for each program are described in the
      individual files in /usr/share/doc/*/copyright.
      
      Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
      permitted by applicable law.
      Last login: Thu Jan 14 11:23:24 2010 from d
      parisc:~# uname -a
      Linux parisc 2.6.19-g2bbf29ac-dirty #1 Sun Dec 3 17:24:04 BRST 2006 parisc64 GNU/Linux
      parisc:~# mkdir .debug
      parisc:~# tar xvf perf.data.tar.bz2 -C ~/.debug
      tar: Record size = 8 blocks
      .build-id/74/f9930ee94475b6b3238caf3725a50d59cb994b
      [kernel.kallsyms]/74f9930ee94475b6b3238caf3725a50d59cb994b
      .build-id/9f/fdcac0a7935922d1f04b6cc9029dfef0f066ef
      lib/modules/2.6.33-rc4-tip+/kernel/arch/x86/crypto/aes-x86_64.ko/9ffdcac0a7935922d1f04b6cc9029dfef0f066ef
      .build-id/3a/af89c32ebfc438ff546c93597d41788e3e65f3
      lib/modules/2.6.33-rc4-tip+/kernel/drivers/net/wireless/iwlwifi/iwl3945.ko/3aaf89c32ebfc438ff546c93597d41788e3e65f3
      .build-id/19/f46033f73e1ec612937189bb118c5daba5a0c8
      lib/modules/2.6.33-rc4-tip+/kernel/net/mac80211/mac80211.ko/19f46033f73e1ec612937189bb118c5daba5a0c8
      .build-id/17/72f014a7a7272859655acb0c64a20ab20b75ee
      lib/modules/2.6.33-rc4-tip+/kernel/drivers/net/e1000e/e1000e.ko/1772f014a7a7272859655acb0c64a20ab20b75ee
      .build-id/eb/4ec8fa8b2a5eb18cad173c92f27ed8887ed1c1
      lib64/libc-2.10.2.so/eb4ec8fa8b2a5eb18cad173c92f27ed8887ed1c1
      .build-id/5c/68f7afeb33309c78037e374b0deee84dd441f6
      lib64/libpthread-2.10.2.so/5c68f7afeb33309c78037e374b0deee84dd441f6
      .build-id/e9/c9ad5c138ef882e4507d2605645b597da43873
      bin/dbus-daemon/e9c9ad5c138ef882e4507d2605645b597da43873
      .build-id/bc/da7d09eb6c9ee380dae0ed3d591d4311decc31
      lib64/libdbus-1.so.3.4.0/bcda7d09eb6c9ee380dae0ed3d591d4311decc31
      .build-id/7c/c449a77f48b85d6088114000e970ced613bed8
      usr/lib64/libcrypto.so.0.9.8k/7cc449a77f48b85d6088114000e970ced613bed8
      .build-id/fd/d1ccd1ff7917ab020653147ab3bacf0a85b5b9
      lib64/libglib-2.0.so.0.2000.5/fdd1ccd1ff7917ab020653147ab3bacf0a85b5b9
      .build-id/e4/417ebb8762e5f2eee93c8011a71115ff5edad8
      lib64/libgobject-2.0.so.0.2000.5/e4417ebb8762e5f2eee93c8011a71115ff5edad8
      .build-id/93/1e49461f6df99104f0febcc52f6fed5e2efce6
      usr/sbin/sshd/931e49461f6df99104f0febcc52f6fed5e2efce6
      .build-id/da/b5f724c088f89fbd8304da553ed6cb30bbec96
      usr/lib64/libgdk-x11-2.0.so.0.1600.6/dab5f724c088f89fbd8304da553ed6cb30bbec96
      .build-id/f2/037a091ef36b591187a858d75e203690ea9409
      usr/sbin/openvpn/f2037a091ef36b591187a858d75e203690ea9409
      .build-id/a8/e4f743b40fb1fd8b85e2f9b88d93b661472b8f
      bin/find/a8e4f743b40fb1fd8b85e2f9b88d93b661472b8f
      .build-id/81/120aada06e68b1e85882925a0fc6d7345ef59a
      home/acme/bin/perf/81120aada06e68b1e85882925a0fc6d7345ef59a
      parisc:~# perf report 2> /dev/null | head -25
           9.07%             find  find                               [.] 0x0000000000fb0e
           3.29%             perf  libc-2.10.2.so                     [.] __GI_strcmp
           3.19%             find  [kernel.kallsyms]                  [k] _raw_spin_unlock_irqrestore
           2.70%             find  libc-2.10.2.so                     [.] __GI_memmove
           2.62%             perf  [kernel.kallsyms]                  [k] vsnprintf
           2.03%             find  libc-2.10.2.so                     [.] _int_malloc
           2.02%             perf  [kernel.kallsyms]                  [k] format_decode
           1.70%             find  [kernel.kallsyms]                  [k] n_tty_write
           1.70%             find  [kernel.kallsyms]                  [k] half_md4_transform
           1.67%             find  libc-2.10.2.so                     [.] _IO_vfprintf_internal
           1.66%             perf  [kernel.kallsyms]                  [k] audit_free_aux
           1.62%          swapper  [kernel.kallsyms]                  [k] mwait_idle_with_hints
           1.58%             find  [kernel.kallsyms]                  [k] __kmalloc
           1.35%             find  [kernel.kallsyms]                  [k] sched_clock_local
           1.35%             find  [kernel.kallsyms]                  [k] ext4_check_dir_entry
           1.35%             find  [kernel.kallsyms]                  [k] ext4_htree_store_dirent
           1.35%             find  [kernel.kallsyms]                  [k] sys_write
           1.35%             find  [e1000e]                           [k] e1000_clean
           1.35%             find  [kernel.kallsyms]                  [k] _atomic_dec_and_lock
           1.34%             find  [kernel.kallsyms]                  [k] __d_lookup
      parisc:~#
      
      Probably the next step is to have 'perf report' notice that there is a
      perf.data.tar.bz2 file in the same directory and look if it was already
      added to ~/.debug/.
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Frédéric Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Paul Mackerras <paulus@samba.org>
      LKML-Reference: <1263568672-30323-2-git-send-email-acme@infradead.org>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      2c585174
  6. 15 12月, 2009 1 次提交
    • A
      perf diff: Introduce tool to show performance difference · 86a9eee0
      Arnaldo Carvalho de Melo 提交于
      I guess it is enough to show some examples:
      
      [root@doppio linux-2.6-tip]# rm -f perf.data*
      [root@doppio linux-2.6-tip]# ls -la perf.data*
      ls: cannot access perf.data*: No such file or directory
      [root@doppio linux-2.6-tip]# perf record -f find / > /dev/null
      [ perf record: Woken up 1 times to write data ]
      [ perf record: Captured and wrote 0.062 MB perf.data (~2699 samples) ]
      [root@doppio linux-2.6-tip]# ls -la perf.data*
      -rw------- 1 root root 74440 2009-12-14 20:03 perf.data
      [root@doppio linux-2.6-tip]# perf record -f find / > /dev/null
      [ perf record: Woken up 1 times to write data ]
      [ perf record: Captured and wrote 0.062 MB perf.data (~2692 samples) ]
      [root@doppio linux-2.6-tip]# ls -la perf.data*
      -rw------- 1 root root 74280 2009-12-14 20:03 perf.data
      -rw------- 1 root root 74440 2009-12-14 20:03 perf.data.old
      [root@doppio linux-2.6-tip]# perf diff | head -5
         1        -34994580     /lib64/libc-2.10.1.so   _IO_vfprintf_internal
         2        -15307806         [kernel.kallsyms]   __kmalloc
         3    +1   +3665941     /lib64/libc-2.10.1.so   __GI_memmove
         4    +4  +23508995     /lib64/libc-2.10.1.so   _int_malloc
         5    +7  +38538813         [kernel.kallsyms]   __d_lookup
      [root@doppio linux-2.6-tip]# perf diff -p | head -5
         1        +1.00%     /lib64/libc-2.10.1.so   _IO_vfprintf_internal
         2                       [kernel.kallsyms]   __kmalloc
         3    +1             /lib64/libc-2.10.1.so   __GI_memmove
         4    +4             /lib64/libc-2.10.1.so   _int_malloc
         5    +7  -1.00%         [kernel.kallsyms]   __d_lookup
      [root@doppio linux-2.6-tip]# perf diff -v | head -5
         1        361449551 326454971 -34994580     /lib64/libc-2.10.1.so   _IO_vfprintf_internal
         2        151009241 135701435 -15307806         [kernel.kallsyms]   __kmalloc
         3    +1  101805328 105471269  +3665941     /lib64/libc-2.10.1.so   __GI_memmove
         4    +4   78041440 101550435 +23508995     /lib64/libc-2.10.1.so   _int_malloc
         5    +7   59536172  98074985 +38538813         [kernel.kallsyms]   __d_lookup
      [root@doppio linux-2.6-tip]# perf diff -vp | head -5
         1        9.00% 8.00% +1.00%     /lib64/libc-2.10.1.so   _IO_vfprintf_internal
         2        3.00% 3.00%                [kernel.kallsyms]   __kmalloc
         3    +1  2.00% 2.00%            /lib64/libc-2.10.1.so   __GI_memmove
         4    +4  2.00% 2.00%            /lib64/libc-2.10.1.so   _int_malloc
         5    +7  1.00% 2.00% -1.00%         [kernel.kallsyms]   __d_lookup
      [root@doppio linux-2.6-tip]#
      
      This should be enough for diffs where the system is non
      volatile, i.e. when one doesn't updates binaries.
      
      For volatile environments, stay tuned for the next perf tool
      feature: a buildid cache populated by 'perf record', managed by
      'perf buildid-cache' a-la ccache, and used by all the report
      tools.
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
      Cc: Stephen Hemminger <shemminger@vyatta.com>
      Cc: Frédéric Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
      LKML-Reference: <1260828571-3613-3-git-send-email-acme@infradead.org>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      86a9eee0
  7. 24 11月, 2009 1 次提交
  8. 17 11月, 2009 1 次提交
    • A
      perf buildid-list: New plumbing command · c34984b2
      Arnaldo Carvalho de Melo 提交于
      With this we can list the buildids in a perf.data file so that
      we can pipe them to other, distro specific tools that from the
      buildids can figure out separate packages (foo-debuginfo) where
      we can find the matching symtabs so that perf report can do its
      job.
      
      E.g:
      
      [acme@doppio linux-2.6-tip]$ perf buildid-list | head -5
      8e08b117e5458ad3f85da16d42d0fc5cd21c5869
      520c2387a587cc5acfcf881e27dba1caaeab4b1f
      ec8dd400904ddfcac8b1c343263a790f977159dc
      7caedbca5a6d8ab39a7fe44bd28c07d3e14a3f3f
      379bb828fd08859dbea73279f04abefabc95a6a3
      [acme@doppio linux-2.6-tip]$ perf buildid-list -v | head -5
      8e08b117e5458ad3f85da16d42d0fc5cd21c5869 /sbin/init
      520c2387a587cc5acfcf881e27dba1caaeab4b1f /lib64/ld-2.10.1.so
      ec8dd400904ddfcac8b1c343263a790f977159dc /lib64/libc-2.10.1.so
      7caedbca5a6d8ab39a7fe44bd28c07d3e14a3f3f /sbin/udevd
      379bb828fd08859dbea73279f04abefabc95a6a3 /lib64/libdl-2.10.1.so
      [acme@doppio linux-2.6-tip]$
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      LKML-Reference: <1258396365-29217-5-git-send-email-acme@infradead.org>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      c34984b2
  9. 10 11月, 2009 1 次提交
    • H
      perf bench: Modify command-list.txt for the entry of perf-bench · 8d8d61aa
      Hitoshi Mitake 提交于
      This patch modifies command-list.txt for the entry of
      perf-bench. So perf will show 'bench' in command list.
      
      Example:
      % perf
      
       usage: perf [--version] [--help] COMMAND [ARGS]
      
       The most commonly used perf commands are:
         annotate    Read perf.data (created by perf record) and display annotated code
         bench       General framework for benchmark suites
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
         list        List all symbolic event types
         probe       Define new dynamic tracepoints
         record      Run a command and record its profile into perf.data
         report      Read perf.data (created by perf record) and display the profile
         sched       Tool to trace/measure scheduler properties (latencies)
         stat        Run a command and gather performance counter statistics
         timechart   Tool to visualize total system behavior during a workload
         top         System profiling tool.
         trace       Read perf.data (created by perf record) and display trace output
      
       See 'perf help COMMAND' for more information on a specific command.
      Signed-off-by: NHitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Paul Mackerras <paulus@samba.org>
      LKML-Reference: <1257853855-28934-4-git-send-email-mitake@dcl.info.waseda.ac.jp>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      8d8d61aa
  10. 17 10月, 2009 1 次提交
    • M
      perf: Add perf-probe document · 595c3649
      Masami Hiramatsu 提交于
      Add perf-probe subcommand document and add it to command-list.
      Signed-off-by: NMasami Hiramatsu <mhiramat@redhat.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      LKML-Reference: <20091017000827.16556.73539.stgit@dhcp-100-2-132.bos.redhat.com>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      595c3649
  11. 20 9月, 2009 1 次提交
  12. 13 9月, 2009 1 次提交
    • I
      perf: Add 'perf sched' tool · 0a02ad93
      Ingo Molnar 提交于
      This turn-key tool allows scheduler measurements to be
      conducted and the results be displayed numerically.
      
      First baby step towards that goal: clone the new command off of
      perf trace.
      
      Fix a few other details along the way:
      
       - add (minimal) perf trace documentation
      
       - reorder a few places
      
       - list perf trace in the mainporcelain list as well
         as it's a very useful utility.
      
      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>
      0a02ad93
  13. 07 6月, 2009 2 次提交
    • I
      perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ · 86470930
      Ingo Molnar 提交于
      Several people have suggested that 'perf' has become a full-fledged
      tool that should be moved out of Documentation/. Move it to the
      (new) tools/ directory.
      
      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>
      LKML-Reference: <new-submission>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      86470930
    • I
      perf_counter tools: Prepare for 'perf annotate' · 8035e428
      Ingo Molnar 提交于
      Prepare for the 'perf annotate' implementation by splitting off
      builtin-annotate.c from builtin-report.c.
      
      ( We keep this commit separate to ease the later librarization
        of the facilities that perf-report and perf-annotate shares. )
      
      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>
      LKML-Reference: <new-submission>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      8035e428
  14. 06 6月, 2009 1 次提交
  15. 26 5月, 2009 1 次提交
  16. 20 4月, 2009 3 次提交