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| author | Leo Yan <leo.yan@linaro.org> | 2023-03-15 22:51:02 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-03-15 16:46:05 -0300 |
| commit | 2d08124b08631322303e365d422ead50ae1674b8 (patch) | |
| tree | 8f1ab9dd959b04dd59c74b91cdfb05a2b9b4d2ba | |
| parent | 2d31e0bff2f3dd5369a9b45e3d8c9ee325784e60 (diff) | |
| download | linux-stable-2d08124b08631322303e365d422ead50ae1674b8.tar.gz linux-stable-2d08124b08631322303e365d422ead50ae1674b8.tar.bz2 linux-stable-2d08124b08631322303e365d422ead50ae1674b8.zip | |
perf kvm: Introduce histograms data structures
This is a preparation to support histograms in perf kvm tool. As first
step, this patch defines histograms data structures and initialize them.
Committer notes:
Those are only used by functions enclosed in:
#if efined(HAVE_KVM_STAT_SUPPORT) && defined(HAVE_LIBTRACEEVENT)
So do this for these new functions and struct as well.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230315145112.186603-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/builtin-kvm.c | 18 | ||||
| -rw-r--r-- | tools/perf/util/kvm-stat.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 286faf6774ff..b06c11d306a1 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -85,6 +85,20 @@ static struct kvm_event_key keys[] = { DEF_SORT_NAME_KEY(time, mean), { NULL, NULL } }; + +struct kvm_hists { + struct hists hists; + struct perf_hpp_list list; +}; + +static struct kvm_hists kvm_hists; + +static int kvm_hists__init(void) +{ + __hists__init(&kvm_hists.hists, &kvm_hists.list); + perf_hpp_list__init(&kvm_hists.list); + return 0; +} #endif // defined(HAVE_KVM_STAT_SUPPORT) && defined(HAVE_LIBTRACEEVENT) static const char *get_filename_for_perf_kvm(void) @@ -959,6 +973,8 @@ static int kvm_events_live_report(struct perf_kvm_stat *kvm) set_term_quiet_input(&save); init_kvm_event_record(kvm); + kvm_hists__init(); + signal(SIGINT, sig_handler); signal(SIGTERM, sig_handler); @@ -1154,6 +1170,8 @@ static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm) init_kvm_event_record(kvm); setup_pager(); + kvm_hists__init(); + ret = read_events(kvm); if (ret) goto exit; diff --git a/tools/perf/util/kvm-stat.h b/tools/perf/util/kvm-stat.h index 841b3174c211..e2c17662bac7 100644 --- a/tools/perf/util/kvm-stat.h +++ b/tools/perf/util/kvm-stat.h @@ -5,6 +5,7 @@ #ifdef HAVE_KVM_STAT_SUPPORT #include "tool.h" +#include "sort.h" #include "stat.h" #include "record.h" |