From: Namhyung Kim <[email protected]> The perf report/top on TUI supports horizontal scrolling using LEFT and RIGHT keys.
But it calculate the number of columns incorrectly when hierarchy mode is enabled so that keep pressing RIGHT key can make the output disappeared. In the hierarchy mode, all sort keys are collapsed into a single column, so it needs to be applied when calculating column numbers. Reported-and-Tested-by: Markus Trippelsdorf <[email protected]> Signed-off-by: Namhyung Kim <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/ui/browsers/hists.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index ddc4c3e59cc1..84f5dd2fb59c 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -2076,8 +2076,21 @@ void hist_browser__init(struct hist_browser *browser, browser->b.use_navkeypressed = true; browser->show_headers = symbol_conf.show_hist_headers; - hists__for_each_format(hists, fmt) + if (symbol_conf.report_hierarchy) { + struct perf_hpp_list_node *fmt_node; + + /* count overhead columns (in the first node) */ + fmt_node = list_first_entry(&hists->hpp_formats, + struct perf_hpp_list_node, list); + perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) + ++browser->b.columns; + + /* add a single column for whole hierarchy sort keys*/ ++browser->b.columns; + } else { + hists__for_each_format(hists, fmt) + ++browser->b.columns; + } hists__reset_column_width(hists); } -- 2.7.4
