Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 01/74] perf hists: Exchange order of comparing items when collapsing hists | Date | Thu, 24 Jan 2013 17:07:10 -0300 |
| |
From: Namhyung Kim <namhyung.kim@lge.com>
When comparing entries for collapsing put the given entry first, and then the iterated entry. This is not the case of hist_entry__cmp() when called if given sort keys don't require collapsing. So change the order for the sake of consistency. It will be required for matching and/or linking multiple hist entries.
Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1355128197-18193-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/builtin-diff.c | 2 +- tools/perf/util/hist.c | 12 +++++++++--- 2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index b2e7d39..4dda6f4 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -285,7 +285,7 @@ static void insert_hist_entry_by_name(struct rb_root *root, while (*p != NULL) { parent = *p; iter = rb_entry(parent, struct hist_entry, rb_node); - if (hist_entry__cmp(he, iter) < 0) + if (hist_entry__cmp(iter, he) < 0) p = &(*p)->rb_left; else p = &(*p)->rb_right; diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 82df1b2..3a9ccd0 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -285,7 +285,13 @@ static struct hist_entry *add_hist_entry(struct hists *hists, parent = *p; he = rb_entry(parent, struct hist_entry, rb_node_in); - cmp = hist_entry__cmp(entry, he); + /* + * Make sure that it receives arguments in a same order as + * hist_entry__collapse() so that we can use an appropriate + * function when searching an entry regardless which sort + * keys were used. + */ + cmp = hist_entry__cmp(he, entry); if (!cmp) { he_stat__add_period(&he->stat, period); @@ -729,7 +735,7 @@ static struct hist_entry *hists__add_dummy_entry(struct hists *hists, parent = *p; he = rb_entry(parent, struct hist_entry, rb_node); - cmp = hist_entry__cmp(pair, he); + cmp = hist_entry__cmp(he, pair); if (!cmp) goto out; @@ -759,7 +765,7 @@ static struct hist_entry *hists__find_entry(struct hists *hists, while (n) { struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node); - int64_t cmp = hist_entry__cmp(he, iter); + int64_t cmp = hist_entry__cmp(iter, he); if (cmp < 0) n = n->rb_left; -- 1.8.1.1.361.gec3ae6e
| |