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<title>user/sven/linux.git/tools/perf/util/python.c, branch v3.14.2</title>
<subtitle>Linux Kernel
</subtitle>
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<updated>2014-01-13T13:06:25Z</updated>
<entry>
<title>perf evlist: Introduce evlist__for_each() &amp; friends</title>
<updated>2014-01-13T13:06:25Z</updated>
<author>
<name>Arnaldo Carvalho de Melo</name>
<email>acme@redhat.com</email>
</author>
<published>2014-01-10T13:37:27Z</published>
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<id>urn:sha1:0050f7aa182e3e8ed34dd6cc4318e52b3df6347a</id>
<content type='text'>
For the common evsel list traversal, so that it becomes more compact.

Use the opportunity to start ditching the 'perf_' from 'perf_evlist__',
as discussed, as the whole conversion touches a lot of places, lets do
it piecemeal when we have the chance due to other work, like in this
case.

Cc: Adrian Hunter &lt;adrian.hunter@intel.com&gt;
Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Namhyung Kim &lt;namhyung@kernel.org&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Stephane Eranian &lt;eranian@google.com&gt;
Link: http://lkml.kernel.org/n/tip-qnkx7dzm2h6m6uptkfk03ni6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
<entry>
<title>Merge branch 'perf/urgent' into perf/core</title>
<updated>2013-10-29T10:23:32Z</updated>
<author>
<name>Ingo Molnar</name>
<email>mingo@kernel.org</email>
</author>
<published>2013-10-29T10:23:32Z</published>
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<id>urn:sha1:aac898548d04c7bff179b79f805874b0d6f87571</id>
<content type='text'>
Conflicts:
	tools/perf/builtin-record.c
	tools/perf/builtin-top.c
	tools/perf/util/hist.h
</content>
</entry>
<entry>
<title>perf tools: Fixup mmap event consumption</title>
<updated>2013-10-28T19:06:00Z</updated>
<author>
<name>Zhouyi Zhou</name>
<email>zhouzhouyi@gmail.com</email>
</author>
<published>2013-10-24T07:43:33Z</published>
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<id>urn:sha1:8e50d384cc1d5afd2989cf0f7093756ed7164eb2</id>
<content type='text'>
The tail position of the event buffer should only be modified after
actually use that event.

If not the event buffer could be invalid before use, and segment fault
occurs when invoking perf top -G.

Signed-off-by: Zhouyi Zhou &lt;yizhouzhou@ict.ac.cn&gt;
Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Zhouyi Zhou &lt;yizhouzhou@ict.ac.cn&gt;
Link: http://lkml.kernel.org/r/1382600613-32177-1-git-send-email-zhouzhouyi@gmail.com
[ Simplified the logic using exit gotos and renamed write_tail method to mmap_consume ]
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
<entry>
<title>perf tools: Adding throttle event data struct support</title>
<updated>2013-10-09T14:39:18Z</updated>
<author>
<name>Jiri Olsa</name>
<email>jolsa@redhat.com</email>
</author>
<published>2013-09-01T10:36:15Z</published>
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<id>urn:sha1:dd96c46b5c765a779d8c35cc7d1df7515b4c7baf</id>
<content type='text'>
Moving 'struct throttle_event' out of python code and making it global
as any other event.

There's no usage of throttling events in any perf commands so far
(besides python support), but we'll need this event data backup for
upcoming test.

Signed-off-by: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Andi Kleen &lt;ak@linux.intel.com&gt;
Cc: Corey Ashford &lt;cjashfor@linux.vnet.ibm.com&gt;
Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
Cc: Ingo Molnar &lt;mingo@elte.hu&gt;
Cc: Namhyung Kim &lt;namhyung@kernel.org&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Cc: Peter Zijlstra &lt;a.p.zijlstra@chello.nl&gt;
Link: http://lkml.kernel.org/r/1378031796-17892-5-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
<entry>
<title>perf tools: Unify page_size usage</title>
<updated>2013-10-09T14:22:55Z</updated>
<author>
<name>Jiri Olsa</name>
<email>jolsa@redhat.com</email>
</author>
<published>2013-09-12T16:39:35Z</published>
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<id>urn:sha1:918512b435e15fefe609d236e0ecd62cb8f389c9</id>
<content type='text'>
Making page_size global from the util object.

Removing the not needed one.

Signed-off-by: Jiri Olsa &lt;jolsa@redhat.com&gt;
Acked-by: Namhyung Kim &lt;namhyung@kernel.org&gt;
Cc: Corey Ashford &lt;cjashfor@linux.vnet.ibm.com&gt;
Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
Cc: Ingo Molnar &lt;mingo@elte.hu&gt;
Cc: Namhyung Kim &lt;namhyung@kernel.org&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Cc: Peter Zijlstra &lt;a.p.zijlstra@chello.nl&gt;
Link: http://lkml.kernel.org/r/1379003976-5839-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
<entry>
<title>perf tools: Add support for PERF_COUNT_SW_DUMMY</title>
<updated>2013-09-02T17:58:20Z</updated>
<author>
<name>Adrian Hunter</name>
<email>adrian.hunter@intel.com</email>
</author>
<published>2013-08-31T18:50:52Z</published>
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<id>urn:sha1:d22d1a2a2c224b3b378d873589ced27add7ebde4</id>
<content type='text'>
Add support for the new dummy software event PERF_COUNT_SW_DUMMY.

Signed-off-by: Adrian Hunter &lt;adrian.hunter@intel.com&gt;
Acked-by: Jiri Olsa &lt;jolsa@redhat.com&gt;
Tested-by: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
Cc: Ingo Molnar &lt;mingo@redhat.com&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Namhyung Kim &lt;namhyung@gmail.com&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Cc: Peter Zijlstra &lt;a.p.zijlstra@chello.nl&gt;
Cc: Stephane Eranian &lt;eranian@google.com&gt;
Link: http://lkml.kernel.org/r/1377975053-3811-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
<entry>
<title>perf tools: Re-implement debug print function for linking python/perf.so</title>
<updated>2013-08-16T20:17:58Z</updated>
<author>
<name>Adrian Hunter</name>
<email>adrian.hunter@intel.com</email>
</author>
<published>2013-08-14T12:48:23Z</published>
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<id>urn:sha1:8afb4c018e21c882c8fad196772ef74d494185e2</id>
<content type='text'>
The python/perf.so python binding links a subset of objects.

Re-implement 'verbose' and 'eprintf' so they (and consequently
'pr_debug') can be used in objects linked into pythin/perf.so.

Note 'eprintf' must be re-implemented because the full version links the
browser ui.

Signed-off-by: Adrian Hunter &lt;adrian.hunter@intel.com&gt;
Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
Cc: Ingo Molnar &lt;mingo@kernel.org&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Namhyung Kim &lt;namhyung@gmail.com&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Stephane Eranian &lt;eranian@google.com&gt;
Link: http://lkml.kernel.org/r/1376484517-5339-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
<entry>
<title>perf python: Fix breakage introduced by the test_attr infrastructure</title>
<updated>2013-01-24T19:40:09Z</updated>
<author>
<name>Arnaldo Carvalho de Melo</name>
<email>acme@redhat.com</email>
</author>
<published>2012-12-13T19:43:04Z</published>
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<id>urn:sha1:0c6332e9d8b8f38a9d5f0cdd66c5575e76ad8995</id>
<content type='text'>
The test_attr infrastructure hooks on the sys_perf_event_open call,
checking if a variable is set and if so calling a function to intercept
calls and do the checking.

But both the variable and the function aren't on objects that are
linked on the python binding, breaking it:

  # perf test -v 15
  15: Try 'use perf' in python, checking link problems       :
  --- start ---
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  ImportError: /home/acme/git/build/perf//python/perf.so: undefined symbol: test_attr__enabled
  ---- end ----
  Try 'use perf' in python, checking link problems: FAILED!
  #

Fix it by moving the variable to one of the linked object files and
providing a stub for the function in the python.o object, that is only
linked in the python binding.

Now 'perf test' is happy again:

  # perf test 15
  15: Try 'use perf' in python, checking link problems       : Ok
  #

Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Namhyung Kim &lt;namhyung@gmail.com&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Stephane Eranian &lt;eranian@google.com&gt;
Link: http://lkml.kernel.org/n/tip-0rsca2kn44b38rgdpr3tz6n5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
<entry>
<title>perf python: Initialize 'page_size' variable</title>
<updated>2012-10-29T14:36:46Z</updated>
<author>
<name>Arnaldo Carvalho de Melo</name>
<email>acme@redhat.com</email>
</author>
<published>2012-10-16T17:51:04Z</published>
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<id>urn:sha1:0da2e9c24804d787cbc919b3e0d28ee7c00240ff</id>
<content type='text'>
The commit 0c1fe6b:

 'perf tools: Have the page size value available for all tools'

Broke the python binding because the global variable 'page_size' is
initialized on the main() routine, that is not called when using
just the python binding, causing evlist.mmap() to fail because it
expects that variable to be initialized to the system's page size.

Fix it by initializing it on the binding init routine.

Reported-by: David Ahern &lt;dsahern@gmail.com&gt;
Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Namhyung Kim &lt;namhyung@gmail.com&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Stephane Eranian &lt;eranian@google.com&gt;
Link: http://lkml.kernel.org/n/tip-vrvp3azmbfzexnpmkhmvtzzc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
<entry>
<title>perf evsel: Know if byte swap is needed</title>
<updated>2012-09-26T15:48:18Z</updated>
<author>
<name>Arnaldo Carvalho de Melo</name>
<email>acme@redhat.com</email>
</author>
<published>2012-09-26T15:48:18Z</published>
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<id>urn:sha1:0807d2d8a381f4fc600ad481c3e77e5cdb624eed</id>
<content type='text'>
Instead of passing it around for parsing as an explicit parameter, will
help with reading tracepoint fields when not using a perf session or
pevent structure, i.e. for non perf.data centered workflows.

Cc: David Ahern &lt;dsahern@gmail.com&gt;
Cc: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Mike Galbraith &lt;efault@gmx.de&gt;
Cc: Namhyung Kim &lt;namhyung@gmail.com&gt;
Cc: Paul Mackerras &lt;paulus@samba.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Stephane Eranian &lt;eranian@google.com&gt;
Link: http://lkml.kernel.org/n/tip-qa67ikv2sm49cwa7dyjhhp6g@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
</content>
</entry>
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