linux-dev/tools/perf/lib/include/internal, branch master

libperf: Move to tools/lib/perf

2020-01-06T14:46:09Z

Move libperf from its current location under tools/perf to a separate directory under tools/lib/. Also change various paths (mainly includes) to reflect the libperf move to a separate directory and add a new directory under MANIFEST. Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191206210612.8676-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf evlist: Maintain evlist->all_cpus

2019-11-29T15:20:45Z

Maintain a cpumap in the evlist that is the union of all the cpus of the events. This needs a cpumap merge operation, which is added together with tests. v2: Add tests for cpu map merge Fix handling of duplicates Rename _update to _merge Factor out sorting. Fix handling of NULL maps in merge v3: Add comments and empty lines to _merge Committer testing: # perf test "Merge cpu map" 52: Merge cpu map : Ok # Signed-off-by: Andi Kleen Acked-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Link: http://lore.kernel.org/lkml/20191121001522.180827-5-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Do not export perf_evsel__init()/perf_evlist__init()

2019-10-19T18:35:01Z

There's no point in exporting perf_evsel__init()/perf_evlist__init(), it's called from perf_evsel__new()/perf_evlist__new() respectively. It's used only from perf where perf_evsel()/perf_evlist() is embedded perf's evsel/evlist. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Jin Yao Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20191017105918.20873-10-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Keep count of failed tests

2019-10-19T18:35:01Z

Keep the count of failed tests, so we get better output with failures, like: # make tests ... running static: - running test-cpumap.c...OK - running test-threadmap.c...OK - running test-evlist.c...FAILED test-evlist.c:53 failed to create evsel2 FAILED test-evlist.c:163 failed to create evsel2 FAILED test-evlist.c:287 failed count FAILED (3) - running test-evsel.c...OK running dynamic: - running test-cpumap.c...OK - running test-threadmap.c...OK - running test-evlist.c...FAILED test-evlist.c:53 failed to create evsel2 FAILED test-evlist.c:163 failed to create evsel2 FAILED test-evlist.c:287 failed count FAILED (3) - running test-evsel.c...OK ... Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Jin Yao Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20191017105918.20873-9-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Introduce perf_evlist__for_each_mmap()

2019-10-19T18:35:01Z

Add the perf_evlist__for_each_mmap() function and export it in the perf/evlist.h header, so that the user can iterate through 'struct perf_mmap' objects. Add a internal perf_mmap__link() function to do the actual linking. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Jin Yao Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/20191017105918.20873-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Introduce perf_evlist__purge()

2019-10-10T15:57:22Z

Add a static perf_evlist__purge() function to purge evsels from a evlist. Add also perf_evlist__for_each_entry_safe() which is used by perf_evlist__purge(). Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191007125344.14268-26-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Introduce perf_evlist__exit()

2019-10-10T15:56:01Z

Add the perf_evlist__exit() function, so far it's not exported and added only for internal use for perf and libperf. USe it to release cpus/threads and pollfd array. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191007125344.14268-25-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Introduce perf_evlist_mmap_ops::mmap callback

2019-10-10T15:22:21Z

Add the perf_evlist_mmap_ops::mmap callback to be called in mmap_per_evsel() to actually mmap the map. Add libperf's perf_evlist__mmap_cb_mmap() function as libperf's mmap callback. New mmaped map gets refcount set to 2 in mmap__mmap(), we follow that in mmap callback. We will move this to common place after we switch to perf_evlist__mmap(). Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191007125344.14268-18-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Add perf_evlist_mmap_ops::get callback

2019-10-10T15:21:11Z

Add the perf_evlist_mmap_ops::get callback to be called in mmap_per_evsel() to get/allocate the 'struct perf_mmap' object. Add the libperf's perf_evlist__mmap_cb_get() function as libperf's get callback. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191007125344.14268-17-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Introduce perf_evlist_mmap_ops::idx callback

2019-10-10T15:20:08Z

Add the perf_evlist_mmap_ops::idx callback to be called in mmap_per_cpu() and mmap_per_thread() with current cpu and thread indexes. It's used by current aux code, so perf will use this callback to set the aux index. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20191007125344.14268-16-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo