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perf hists browser: Add parameter to disable lost event warning

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For overwrite mode, the ringbuffer will be paused. The event lost is
expected. It needs a way to notify the browser not print the warning.

It will be used later for perf top to disable lost event warning in
overwrite mode. There is no behavior change for now.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1516310792-208685-15-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang
2018-01-18 13:26:29 -08:00
committed by Arnaldo Carvalho de Melo
parent 204721d7ea
commit 06cc1a470a
6 changed files with 36 additions and 20 deletions
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4
tools/perf/builtin-c2c.c
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@@ -2245,7 +2245,7 @@ static int perf_c2c__browse_cacheline(struct hist_entry *he)
c2c_browser__update_nr_entries(browser);
while (1) {
key = hist_browser__run(browser, "? - help");
key = hist_browser__run(browser, "? - help", true);
switch (key) {
case 's':
@@ -2314,7 +2314,7 @@ static int perf_c2c__hists_browse(struct hists *hists)
c2c_browser__update_nr_entries(browser);
while (1) {
key = hist_browser__run(browser, "? - help");
key = hist_browser__run(browser, "? - help", true);
switch (key) {
case 'q':