perf tools: Allow hpp fields to be sort keys
Add overhead{,_sys,_us,_guest_sys,_guest_us}, sample and period sort
keys so that they can be selected with --sort/-s option.
$ perf report -s period,comm --stdio
...
# Overhead Period Command
# ........ ............ ...............
#
47.06% 152 swapper
13.93% 45 qemu-system-arm
12.38% 40 synergys
3.72% 12 firefox
2.48% 8 xchat
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1400480762-22852-9-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index e7ac794..24116a4 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -346,8 +346,13 @@
int i;
for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
- INIT_LIST_HEAD(&perf_hpp__format[i].list);
- INIT_LIST_HEAD(&perf_hpp__format[i].sort_list);
+ struct perf_hpp_fmt *fmt = &perf_hpp__format[i];
+
+ INIT_LIST_HEAD(&fmt->list);
+
+ /* sort_list may be linked by setup_sorting() */
+ if (fmt->sort_list.next == NULL)
+ INIT_LIST_HEAD(&fmt->sort_list);
}
perf_hpp__column_enable(PERF_HPP__OVERHEAD);