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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-05-10 13:04:11 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-05-10 13:13:49 -0300
commit1c02c4d2e92f2097f1bba63ec71560b0e05a7f36 (patch)
treead2a722931398ce3cd3ae850c4cfa148558a52ea /tools/perf/builtin-annotate.c
parentd118f8ba6ac2af2bf11d40cba657c813f0f39ca2 (diff)
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perf hist: Introduce hists class and move lots of methods to it
In cbbc79a we introduced support for multiple events by introducing a new "event_stat_id" struct and then made several perf_session methods receive a point to it instead of a pointer to perf_session, and kept the event_stats and hists rb_tree in perf_session. While working on the new newt based browser, I realised that it would be better to introduce a new class, "hists" (short for "histograms"), renaming the "event_stat_id" struct and the perf_session methods that were really "hists" methods, as they manipulate only struct hists members, not touching anything in the other perf_session members. Other optimizations, such as calculating the maximum lenght of a symbol name present in an hists instance will be possible as we add them, avoiding a re-traversal just for finding that information. The rationale for the name "hists" to replace "event_stat_id" is that we may have multiple sets of hists for the same event_stat id, as, for instance, the 'perf diff' tool has, so event stat id is not what characterizes what this struct and the functions that manipulate it do. Cc: Eric B Munson <ebmunson@us.ibm.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-annotate.c')
-rw-r--r--tools/perf/builtin-annotate.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index c7ac45a59ed5..3940964161b3 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -96,8 +96,7 @@ static int annotate__hist_hit(struct hist_entry *he, u64 ip)
return 0;
}
-static int perf_session__add_hist_entry(struct perf_session *self,
- struct addr_location *al)
+static int hists__add_entry(struct hists *self, struct addr_location *al)
{
struct hist_entry *he;
@@ -112,7 +111,7 @@ static int perf_session__add_hist_entry(struct perf_session *self,
return 0;
}
- he = __perf_session__add_hist_entry(&self->hists, al, NULL, 1);
+ he = __hists__add_entry(self, al, NULL, 1);
if (he == NULL)
return -ENOMEM;
@@ -132,7 +131,7 @@ static int process_sample_event(event_t *event, struct perf_session *session)
return -1;
}
- if (!al.filtered && perf_session__add_hist_entry(session, &al)) {
+ if (!al.filtered && hists__add_entry(&session->hists, &al)) {
pr_warning("problem incrementing symbol count, "
"skipping event\n");
return -1;
@@ -514,11 +513,11 @@ static void annotate_sym(struct hist_entry *he)
free_source_line(he, len);
}
-static void perf_session__find_annotations(struct perf_session *self)
+static void hists__find_annotations(struct hists *self)
{
struct rb_node *nd;
- for (nd = rb_first(&self->hists); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
struct sym_priv *priv;
@@ -570,9 +569,9 @@ static int __cmd_annotate(void)
if (verbose > 2)
perf_session__fprintf_dsos(session, stdout);
- perf_session__collapse_resort(&session->hists);
- perf_session__output_resort(&session->hists, session->event_total[0]);
- perf_session__find_annotations(session);
+ hists__collapse_resort(&session->hists);
+ hists__output_resort(&session->hists);
+ hists__find_annotations(&session->hists);
out_delete:
perf_session__delete(session);