From 9cba9844547731d2f14d79485c43192ffaa37b76 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 25 Oct 2016 01:21:10 +0900 Subject: [PATCH] perf hist browser: Fix hierarchy column counts 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 Signed-off-by: Namhyung Kim Tested-by: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20161024162110.17918-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- 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 4ffff7be9299..5adedc1a09d3 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); } -- GitLab