'perf trace' can show summary of events using -S option. This commit
also reports number of major/minor pagefault events in this summary.
Signed-off-by: Stanislav Fomichev <stfomic...@yandex-team.ru>
---
tools/perf/builtin-trace.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 9d3f3f7f3ea1..9dd21dd26ef2 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1132,6 +1132,7 @@ struct thread_trace {
u64 exit_time;
bool entry_pending;
unsigned long nr_events;
+ unsigned long pfmaj, pfmin;
char *entry_str;
double runtime_ms;
struct {
@@ -1786,8 +1787,12 @@ static int trace__pgfault(struct trace *trace,
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct addr_location al;
char map_type = 'd';
+ struct thread_trace *ttrace;
thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
+ ttrace = thread__trace(thread, trace->output);
+ if (ttrace == NULL)
+ return -1;
thread__find_addr_location(thread, trace->host, cpumode, MAP__FUNCTION,
sample->ip, &al);
@@ -1798,6 +1803,11 @@ static int trace__pgfault(struct trace *trace,
evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ?
"maj" : "min");
+ if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)
+ ttrace->pfmaj++;
+ else
+ ttrace->pfmin++;
+
if (al.sym)
fprintf(trace->output, "[%s+0x%lx]",
al.sym->name, al.addr - al.sym->start);
@@ -2338,6 +2348,7 @@ static int trace__fprintf_one_thread(struct thread
*thread, void *priv)
printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread),
thread->tid);
printed += fprintf(fp, "%lu events, ", ttrace->nr_events);
printed += fprintf(fp, "%.1f%%", ratio);
+ printed += fprintf(fp, ", %lu:%lu faults", ttrace->pfmaj,
ttrace->pfmin);
printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
printed += thread__dump_stats(ttrace, trace, fp);
--
1.8.3.2
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