diff options
| author | Kan Liang <[email protected]> | 2018-01-18 13:26:30 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2018-02-15 09:56:43 -0300 |
| commit | a1ff5b05e988ca3620027148cd61013408ea4194 (patch) | |
| tree | a827252c56dd840e212443cf77d4e2cea0ecd01f | |
| parent | 06cc1a470ab237b991901729b125404c164f3660 (diff) | |
perf top: Remove lost events checking
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 tolerated by 'perf top'.
Remove the lost events checking.
Signed-off-by: Kan Liang <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/perf/builtin-top.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 7def861a9ec4..59653062bb48 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; |