From: Namhyung Kim <[email protected]> Markus reported that 'perf top --hierarchy' cannot scroll down after refresh. This was because the number of entries are not updated when hierarchy is enabled.
Unlike normal report view, hierarchy mode needs to keep its own entry count since it can have non-leaf entries which can expand/collapse. Reported-and-Tested-by: Markus Trippelsdorf <[email protected]> Signed-off-by: Namhyung Kim <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Fixes: f5b763feebe9 ("perf hists browser: Count number of hierarchy entries") Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/ui/browsers/hists.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index fb8e42c7507a..4ffff7be9299 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -601,7 +601,8 @@ int hist_browser__run(struct hist_browser *browser, const char *help) u64 nr_entries; hbt->timer(hbt->arg); - if (hist_browser__has_filter(browser)) + if (hist_browser__has_filter(browser) || + symbol_conf.report_hierarchy) hist_browser__update_nr_entries(browser); nr_entries = hist_browser__nr_entries(browser); -- 2.7.4
