From: Kan Liang <kan.li...@intel.com>
There would be some records lost in overwrite mode because of pausing
the ringbuffer. It has little impact for the accuracy of the snapshot
and could be tolerant for perf top.
The lost events checking is removed.
Signed-off-by: Kan Liang <kan.li...@intel.com>
---
tools/perf/builtin-top.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index c559107..1dd3b63 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -283,8 +283,9 @@ static void perf_top__print_sym_table(struct perf_top *top)
printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
- if (hists->stats.nr_lost_warned !=
- hists->stats.nr_events[PERF_RECORD_LOST]) {
+ if (!top->record_opts.overwrite &&
+ (hists->stats.nr_lost_warned !=
+ hists->stats.nr_events[PERF_RECORD_LOST])) {
hists->stats.nr_lost_warned =
hists->stats.nr_events[PERF_RECORD_LOST];
color_fprintf(stdout, PERF_COLOR_RED,
@@ -611,7 +612,8 @@ static void *display_thread_tui(void *arg)
perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
top->min_percent,
- &top->session->header.env, true);
+ &top->session->header.env,
+ !top->record_opts.overwrite);
done = 1;
return NULL;
--
2.5.5
