Commit a0b404f4 authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo

perf diff: Make hist_entry_diff fields union

The period_ratio_delta, period_ratio and wdiff are never by used at the
same time.  Instead, Just one of them is accessed according to a
comparison method.  So make it union to reduce memory footprint.
Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1429416255-12070-3-git-send-email-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent cc5e461a
...@@ -58,7 +58,7 @@ struct he_stat { ...@@ -58,7 +58,7 @@ struct he_stat {
struct hist_entry_diff { struct hist_entry_diff {
bool computed; bool computed;
union {
/* PERF_HPP__DELTA */ /* PERF_HPP__DELTA */
double period_ratio_delta; double period_ratio_delta;
...@@ -67,6 +67,7 @@ struct hist_entry_diff { ...@@ -67,6 +67,7 @@ struct hist_entry_diff {
/* HISTC_WEIGHTED_DIFF */ /* HISTC_WEIGHTED_DIFF */
s64 wdiff; s64 wdiff;
};
}; };
/** /**
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment