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authorJiri Olsa <jolsa@redhat.com>2012-03-22 14:37:26 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-03-22 15:12:09 -0300
commit4bf9ce1b5ecffffeb8b9d7e925bac3e6b10109aa (patch)
tree6405f45496261cbc233d8b4c1870bb05c647d966 /tools/perf/util
parent5d7be90ed5cfb5dd3c9ab726d7daa91b86b81747 (diff)
perf diff: Fix to work with new hists design
The perf diff command is broken since: perf hists: Threaded addition and sorting of entries commit 1980c2ebd7020d82c024b8c4046849b38e78e7da Several places were broken: - hists data need to be collected into opened sessions instead of into events - session's hists data need to be initialized properly when the session is created - hist_entry__pcnt_snprintf: the percentage and displacement buffer preparation must not use 'ret' because it's used as a pointer to the final buffer Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120322133726.GB1601@m.brq.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/evsel.c2
-rw-r--r--tools/perf/util/evsel.h2
-rw-r--r--tools/perf/util/hist.c8
-rw-r--r--tools/perf/util/session.c1
4 files changed, 8 insertions, 5 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 0221700075c..d9da62a7234 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -34,7 +34,7 @@ int __perf_evsel__sample_size(u64 sample_type)
return size;
}
-static void hists__init(struct hists *hists)
+void hists__init(struct hists *hists)
{
memset(hists, 0, sizeof(*hists));
hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT;
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 3158ca3d69a..3d6b3e4cb66 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -170,4 +170,6 @@ static inline int perf_evsel__sample_size(struct perf_evsel *evsel)
return __perf_evsel__sample_size(evsel->attr.sample_type);
}
+void hists__init(struct hists *hists);
+
#endif /* __PERF_EVSEL_H */
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 5fb19013ca0..c61235f8126 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -891,9 +891,9 @@ static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,
diff = new_percent - old_percent;
if (fabs(diff) >= 0.01)
- ret += scnprintf(bf, sizeof(bf), "%+4.2F%%", diff);
+ scnprintf(bf, sizeof(bf), "%+4.2F%%", diff);
else
- ret += scnprintf(bf, sizeof(bf), " ");
+ scnprintf(bf, sizeof(bf), " ");
if (sep)
ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
@@ -902,9 +902,9 @@ static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,
if (show_displacement) {
if (displacement)
- ret += scnprintf(bf, sizeof(bf), "%+4ld", displacement);
+ scnprintf(bf, sizeof(bf), "%+4ld", displacement);
else
- ret += scnprintf(bf, sizeof(bf), " ");
+ scnprintf(bf, sizeof(bf), " ");
if (sep)
ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 002ebbf59f4..9412e3b05f6 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -140,6 +140,7 @@ struct perf_session *perf_session__new(const char *filename, int mode,
INIT_LIST_HEAD(&self->ordered_samples.sample_cache);
INIT_LIST_HEAD(&self->ordered_samples.to_free);
machine__init(&self->host_machine, "", HOST_KERNEL_ID);
+ hists__init(&self->hists);
if (mode == O_RDONLY) {
if (perf_session__open(self, force) < 0)