Commit-ID: a0b404f4c0820a934ae1b6ce39d8a4a0f01a7a20 Gitweb: http://git.kernel.org/tip/a0b404f4c0820a934ae1b6ce39d8a4a0f01a7a20 Author: Namhyung Kim <[email protected]> AuthorDate: Sun, 19 Apr 2015 13:04:10 +0900 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Wed, 29 Apr 2015 10:37:44 -0300
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: Namhyung Kim <[email protected]> Cc: David Ahern <[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/util/sort.h | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index af192f1..de3303f 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -58,15 +58,16 @@ struct he_stat { struct hist_entry_diff { bool computed; + union { + /* PERF_HPP__DELTA */ + double period_ratio_delta; - /* PERF_HPP__DELTA */ - double period_ratio_delta; - - /* PERF_HPP__RATIO */ - double period_ratio; + /* PERF_HPP__RATIO */ + double period_ratio; - /* HISTC_WEIGHTED_DIFF */ - s64 wdiff; + /* HISTC_WEIGHTED_DIFF */ + s64 wdiff; + }; }; /** -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
