From 4cabc3d1cb6a46f581a2628d1d11c483d5f300e5 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 21 Aug 2013 16:47:26 -0700 Subject: 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 Acked-by: Arnaldo Carvalho de Melo Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1377128846-977-5-git-send-email-andi@firstfloor.org Signed-off-by: Ingo Molnar --- tools/perf/util/evsel.h | 6 ++++++ tools/perf/util/pmu.c | 16 ++++++++++++++++ tools/perf/util/pmu.h | 1 + 3 files changed, 23 insertions(+) (limited to 'tools/perf/util') diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 4a7bdc713bab..5aa68cddc7d9 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -197,6 +197,12 @@ static inline bool perf_evsel__match2(struct perf_evsel *e1, (e1->attr.config == e2->attr.config); } +#define perf_evsel__cmp(a, b) \ + ((a) && \ + (b) && \ + (a)->attr.type == (b)->attr.type && \ + (a)->attr.config == (b)->attr.config) + int __perf_evsel__read_on_cpu(struct perf_evsel *evsel, int cpu, int thread, bool scale); diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index bc9d8069d376..64362fe45b71 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -637,3 +637,19 @@ void print_pmu_events(const char *event_glob, bool name_only) printf("\n"); free(aliases); } + +bool pmu_have_event(const char *pname, const char *name) +{ + struct perf_pmu *pmu; + struct perf_pmu_alias *alias; + + pmu = NULL; + while ((pmu = perf_pmu__scan(pmu)) != NULL) { + if (strcmp(pname, pmu->name)) + continue; + list_for_each_entry(alias, &pmu->aliases, list) + if (!strcmp(alias->name, name)) + return true; + } + return false; +} diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 6b2cbe2d4cc3..1179b26f244a 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 */ -- cgit v1.2.2