[PATCH 1/3] perf timechart: fix wrong SVG height

[Stanislav Fomichev]

If we call perf timechart with -p 0 arguments, it means we don't
want any tasks related data. It works, but space for tasks data is
reserved in the generated SVG. Remove this unused empty space via
passing 0 as count to the open_svg.

Signed-off-by: Stanislav Fomichev <stfomichev@xxxxxxxxxxxxxx>
---
 tools/perf/builtin-timechart.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 652af0b66a62..25526d6eae59 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1045,6 +1045,9 @@ static void write_svg_file(struct timechart *tchart, const char *filename)
 		thresh /= 10;
 	} while (!process_filter && thresh && count < tchart->proc_num);
 
+	if (!tchart->proc_num)
+		count = 0;
+
 	open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
 
 	svg_time_grid();
-- 
1.8.3.2

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