1. 25 12月, 2010 1 次提交
  2. 10 11月, 2010 1 次提交
  3. 27 10月, 2010 1 次提交
    • A
      perf python scripting: Add futex-contention script · 00204c33
      Arnaldo Carvalho de Melo 提交于
      The equivalent to this SystemTAP script:
      
      http://sourceware.org/systemtap/wiki/WSFutexContention
      
      [root@doppio ~]# perf trace futex-contention
      Press control+C to stop and show the summary
      ^Cnpviewer.bin[15242] lock 7f0a8be19104 contended 29 times, 72806 avg ns
      npviewer.bin[15242] lock 7f0a8be19130 contended 2 times, 1355 avg ns
      synergyc[17245] lock f127f4 contended 1 times, 1830569 avg ns
      firefox[15116] lock 7f2b7238af0c contended 168 times, 1230390 avg ns
      synergyc[17245] lock f2fc20 contended 1 times, 33149 avg ns
      npviewer.bin[15255] lock 7f0a8be19074 contended 155 times, 73047 avg ns
      npviewer.bin[15255] lock 7f0a8be190a0 contended 127 times, 7088 avg ns
      synergyc[17247] lock f12854 contended 1 times, 46741 avg ns
      synergyc[17245] lock f12610 contended 1 times, 7358 avg ns
      [root@doppio ~]#
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      00204c33
  4. 24 10月, 2010 1 次提交
  5. 08 9月, 2010 1 次提交
    • K
      perf: Add a script to show packets processing · 359d5106
      Koki Sanagi 提交于
      Add a perf script which shows packets processing and processed
      time. It helps us to investigate networking or network devices.
      
      If you want to use it, install perf and record perf.data like
      following.
      
      If you set script, perf gathers records until it ends.
      If not, you must Ctrl-C to stop recording.
      
      And if you want a report from record,
      
      If you use some options, you can limit the output.
      Option is below.
      
      tx: show only tx packets processing
      rx: show only rx packets processing
      dev=: show processing on this device
      debug: work with debug mode. It shows buffer status.
      
      For example, if you want to show received packets processing
      associated with eth4,
      
      106133.171439sec cpu=0
        irq_entry(+0.000msec irq=24:eth4)
               |
        softirq_entry(+0.006msec)
               |
               |---netif_receive_skb(+0.010msec skb=f2d15900 len=100)
               |            |
               |      skb_copy_datagram_iovec(+0.039msec 10291::10291)
               |
        napi_poll_exit(+0.022msec eth4)
      
      This perf script helps us to analyze the processing time of a
      transmit/receive sequence.
      Signed-off-by: NKoki Sanagi <sanagi.koki@jp.fujitsu.com>
      Acked-by: NDavid S. Miller <davem@davemloft.net>
      Cc: Neil Horman <nhorman@tuxdriver.com>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Cc: Kaneshige Kenji <kaneshige.kenji@jp.fujitsu.com>
      Cc: Izumo Taku <izumi.taku@jp.fujitsu.com>
      Cc: Kosaki Motohiro <kosaki.motohiro@jp.fujitsu.com>
      Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
      Cc: Scott Mcmillan <scott.a.mcmillan@intel.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Eric Dumazet <eric.dumazet@gmail.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <4C72439D.3040001@jp.fujitsu.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      359d5106
  6. 02 8月, 2010 1 次提交
    • F
      perf: New migration tool overview · 880d22f2
      Frederic Weisbecker 提交于
      This brings a GUI tool that displays an overview of the load
      of tasks proportion in each CPUs.
      
      The CPUs forward progress is cut in timeslices. A new timeslice
      is created for every runqueue event: a task gets pushed out or
      pulled in the runqueue.
      
      For each timeslice, every CPUs rectangle is colored with a red
      power that describes the local load against the total load.
      This more red is the rectangle, the higher is the given CPU load.
      This load is the number of tasks running on the CPU, without
      any distinction against the scheduler policy of the tasks, for
      now.
      
      Also for each timeslice, the event origin is depicted on the
      CPUs that triggered it using a thin colored line on top of the
      rectangle timeslice.
      
      These events are:
      
      * sleep: a task went to sleep and has then been pulled out the
        runqueue. The origin color in the thin line is dark blue.
      
      * wake up: a task woke up and has then been pushed in the
        runqueue. The origin color is yellow.
      
      * wake up new: a new task woke up and has then been pushed in the
        runqueue. The origin color is green.
      
      * migrate in: a task migrated in the runqueue due to a load
        balancing operation. The origin color is violet.
      
      * migrate out: reverse of the previous one. Migrate in events
        usually have paired migrate out events in another runqueue.
        The origin color is light blue.
      
      Clicking on a timeslice provides the runqueue event details
      and the runqueue state.
      
      The CPU rectangles can be navigated using the usual arrow
      controls. Horizontal zooming in/out is possible with the
      "+" and "-" buttons.
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Venkatesh Pallipadi <venki@google.com>
      Cc: Pierre Tardy <tardyp@gmail.com>
      Cc: Nikhil Rao <ncrao@google.com>
      Cc: Li Zefan <lizf@cn.fujitsu.com>
      880d22f2
  7. 11 5月, 2010 3 次提交
  8. 01 5月, 2010 1 次提交
  9. 14 4月, 2010 2 次提交
    • T
      perf trace/scripting: Enable scripting shell scripts for live mode · 00b21a01
      Tom Zanussi 提交于
      It should be possible to run any perf trace script in 'live
      mode'. This requires being able to pass in e.g. '-i -' or other
      args, which the current shell scripts aren't equipped to handle.
       In a few cases, there are required or optional args that also
      need special handling. This patch makes changes the current set
      of shell scripts as necessary.
      Signed-off-by: NTom Zanussi <tzanussi@gmail.com>
      Acked-by: NThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-11-git-send-email-tzanussi@gmail.com>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      00b21a01
    • T
      perf trace/scripting: Add rwtop and sctop scripts · 47902f36
      Tom Zanussi 提交于
      A couple of scripts, one in Python and the other in Perl, that
      demonstrate 'live mode' tracing.  For each, the output of the
      perf event stream is fed continuously to the script, which
      continuously aggregates the data and reports the current results
      every 3 seconds, or at the optionally specified interval.  After
      the current results are displayed, the aggregations are cleared
      and the cycle begins anew.
      
      To run the scripts, simply pipe the output of the 'perf trace
      record' step as input to the corresponding 'perf trace report'
      step, using '-' as the filename to -o and -i:
      
       $ perf trace record sctop -o - | perf trace report sctop -i -
      
      Also adds clear_term() utility functions to the Util.pm and
      Util.py utility modules, for use by any script to clear the
      screen.
      Signed-off-by: NTom Zanussi <tzanussi@gmail.com>
      Acked-by: NThomas Gleixner <tglx@linutronix.de>
      Cc: fweisbec@gmail.com
      Cc: rostedt@goodmis.org
      Cc: k-keiichi@bx.jp.nec.com
      Cc: acme@ghostprotocols.net
      LKML-Reference: <1270184365-8281-10-git-send-email-tzanussi@gmail.com>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      47902f36
  10. 25 2月, 2010 1 次提交
    • T
      perf/scripts: Add syscall tracing scripts · 4d161f03
      Tom Zanussi 提交于
      Adds a set of scripts that aggregate system call totals and system
      call errors.  Most are Python scripts that also test basic
      functionality of the new Python engine, but there's also one Perl
      script added for comparison and for reference in some new
      Documentation contained in a later patch.
      Signed-off-by: NTom Zanussi <tzanussi@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Keiichi KII <k-keiichi@bx.jp.nec.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <1264580883-15324-8-git-send-email-tzanussi@gmail.com>
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      4d161f03