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| author | Alexander Yarygin <yarygin@linux.vnet.ibm.com> | 2014-07-03 18:29:06 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-07-17 00:57:32 +0400 |
| commit | 54c801ff71ba9c9ae41871e226b9d846ff9c6bab (patch) | |
| tree | f76af7d6d25bbf56be31d9c3bddaaae77205aa76 /tools/perf/builtin-kvm.c | |
| parent | 9daa81239e60c162153fb2a365b8492c9a9bf632 (diff) | |
| download | linux-54c801ff71ba9c9ae41871e226b9d846ff9c6bab.tar.xz | |
perf kvm: Add skip_event() for --duration option
Current code skips output of the x86 specific HLT event in order to
avoid flooding the output with enabled --duration option. The events to
be skipped should be architecture dependent, though.
Let's add an architecture specific array of events to be skipped and
introduce a skip_event() function checking against that array.
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1404397747-20939-4-git-send-email-yarygin@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-kvm.c')
| -rw-r--r-- | tools/perf/builtin-kvm.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 75ee8c1a6baf..fc2d63d3e791 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -261,6 +261,17 @@ static bool update_kvm_event(struct kvm_event *event, int vcpu_id, return true; } +static bool skip_event(const char *event) +{ + const char * const *skip_events; + + for (skip_events = kvm_skip_events; *skip_events; skip_events++) + if (!strcmp(event, *skip_events)) + return true; + + return false; +} + static bool handle_end_event(struct perf_kvm_stat *kvm, struct vcpu_event_record *vcpu_record, struct event_key *key, @@ -312,7 +323,7 @@ static bool handle_end_event(struct perf_kvm_stat *kvm, char decode[DECODE_STR_LEN]; kvm->events_ops->decode_key(kvm, &event->key, decode); - if (strcmp(decode, "HLT")) { + if (!skip_event(decode)) { pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n", sample->time, sample->pid, vcpu_record->vcpu_id, decode, time_diff/1000); |