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authorJiri Olsa <jolsa@kernel.org>2018-11-11 20:02:46 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-12-17 14:58:33 -0300
commit97f7e0b33db81fd821828390e9095771abe62816 (patch)
treec6fbeacb43c62c496da5d090ddf1f6b4f24786ea /tools/perf/builtin-top.c
parentd63b9f6fea7613e2fdc8a5ef7e17ecc9cf24bf9d (diff)
downloadlinux-97f7e0b33db81fd821828390e9095771abe62816.tar.bz2
perf top: Save and display the drop count stats
Add drop count to 'perf top' headers: # perf top --stdio PerfTop: 3549 irqs/sec kernel:51.8% exact: 100.0% lost: 0/0 drop: 0/0 [4000Hz cycles:ppp], (all, 8 CPUs) # perf top Samples: 0 of event 'cycles:ppp', 4000 Hz, Event count (approx.): 0 lost: 0/0 drop: 0/0 The format is: <current period drop>/<total drop> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-2lj87zz8tq9ye1ntax3ulw0n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-top.c')
-rw-r--r--tools/perf/builtin-top.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 234232d538c2..9166f6087e3f 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1112,8 +1112,11 @@ static int deliver_event(struct ordered_events *qe,
struct machine *machine;
int ret = -1;
- if (should_drop(qevent, top))
+ if (should_drop(qevent, top)) {
+ top->drop++;
+ top->drop_total++;
return 0;
+ }
ret = perf_evlist__parse_sample(evlist, event, &sample);
if (ret) {