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| author |  Kan Liang <kan.liang@linux.intel.com>
| 2020-03-19 13:25:10 -0700 |
|---|---|---|
| committer |  Arnaldo Carvalho de Melo <acme@redhat.com>
| 2020-04-18 09:05:01 -0300 |
| commit | 9c6c3f471d85a9b0bcda3ce6fc1e2646685e3f60 (patch) | |
| tree | 56ded07276f2adf4b3f1a0d0d32430bca581d4d2 /tools/perf/util/thread.c | |
| parent | perf thread: Add a knob for LBR stitch approach (diff) | |
| download | linux-9c6c3f471d85a9b0bcda3ce6fc1e2646685e3f60.tar.gz linux-9c6c3f471d85a9b0bcda3ce6fc1e2646685e3f60.tar.bz2 linux-9c6c3f471d85a9b0bcda3ce6fc1e2646685e3f60.zip | |
perf thread: Save previous sample for LBR stitching approach
To retrieve the overwritten LBRs from previous sample for LBR stitching
approach, perf has to save the previous sample.
Only allocate the struct lbr_stitch once, when LBR stitching approach is
enabled and kernel supports hw_idx.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pavel Gerasimov <pavel.gerasimov@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vitaly Slobodskoy <vitaly.slobodskoy@intel.com>
Link: http://lore.kernel.org/lkml/20200319202517.23423-11-kan.liang@linux.intel.com
[ Use zalloc()/zfree() for thread->lbr_stitch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/thread.c')
| -rw-r--r-- | tools/perf/util/thread.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index 1f080db23615..8d0da260c84c 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -111,6 +111,7 @@ void thread__delete(struct thread *thread) exit_rwsem(&thread->namespaces_lock); exit_rwsem(&thread->comm_lock); + thread__free_stitch_list(thread); free(thread); } |