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authorAndi Kleen <ak@linux.intel.com>2013-08-21 16:47:26 -0700
committerIngo Molnar <mingo@kernel.org>2013-10-04 10:06:07 +0200
commit4cabc3d1cb6a46f581a2628d1d11c483d5f300e5 (patch)
tree5daa1d88dd0cfa62433f7d6149f5f96c6a3fc33d /tools/perf/util/pmu.h
parent723478c8a471403c53cf144999701f6e0c4bbd11 (diff)
downloadop-kernel-dev-4cabc3d1cb6a46f581a2628d1d11c483d5f300e5.zip
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tools/perf/stat: Add perf stat --transaction
Add support to perf stat to print the basic transactional execution statistics: Total cycles, Cycles in Transaction, Cycles in aborted transsactions using the in_tx and in_tx_checkpoint qualifiers. Transaction Starts and Elision Starts, to compute the average transaction length. This is a reasonable overview over the success of the transactions. Also support architectures that have a transaction aborted cycles counter like POWER8. Since that is awkward to handle in the kernel abstract handle both cases here. Enable with a new --transaction / -T option. This requires measuring these events in a group, since they depend on each other. This is implemented by using TM sysfs events exported by the kernel Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Arnaldo Carvalho de Melo <acme@infradead.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1377128846-977-5-git-send-email-andi@firstfloor.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/pmu.h')
-rw-r--r--tools/perf/util/pmu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 6b2cbe2..1179b26 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -42,6 +42,7 @@ int perf_pmu__format_parse(char *dir, struct list_head *head);
struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
void print_pmu_events(const char *event_glob, bool name_only);
+bool pmu_have_event(const char *pname, const char *name);
int perf_pmu__test(void);
#endif /* __PMU_H */
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