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authorJiri Olsa <jolsa@redhat.com>2012-12-17 14:08:38 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-01-24 16:40:10 -0300
commit82ce75d93335f7079afc17fb7f2a4e549d2fbecb (patch)
treefea9067d416b6aa8c27767f83e089820059d8bfc /tools/perf/tests
parentf35488f97b4b49cb76d87bb7e8da9e93fc70b4e9 (diff)
downloadop-kernel-dev-82ce75d93335f7079afc17fb7f2a4e549d2fbecb.zip
op-kernel-dev-82ce75d93335f7079afc17fb7f2a4e549d2fbecb.tar.gz
perf tests: Add event parsing test for '*:*' tracepoints
Adding event parsing test for '*:*' tracepoints. Checking the count matches all the tracepoints available plus current standard tracepoint perf_event_attr check. This test exposes warnings from traceevent lib about not being able to parse some tracepoints' format data. Exposing these messages in the automated test suite will probably speed up the fix ;-) 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: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1355749718-4355-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/tests')
-rw-r--r--tools/perf/tests/parse-events.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 294ffdd..e7eb708 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -3,6 +3,7 @@
#include "evsel.h"
#include "evlist.h"
#include "sysfs.h"
+#include "debugfs.h"
#include "tests.h"
#include <linux/hw_breakpoint.h>
@@ -782,6 +783,63 @@ static int test__group5(struct perf_evlist *evlist __maybe_unused)
return 0;
}
+static int count_tracepoints(void)
+{
+ char events_path[PATH_MAX];
+ struct dirent *events_ent;
+ DIR *events_dir;
+ int cnt = 0;
+
+ scnprintf(events_path, PATH_MAX, "%s/tracing/events",
+ debugfs_find_mountpoint());
+
+ events_dir = opendir(events_path);
+
+ TEST_ASSERT_VAL("Can't open events dir", events_dir);
+
+ while ((events_ent = readdir(events_dir))) {
+ char sys_path[PATH_MAX];
+ struct dirent *sys_ent;
+ DIR *sys_dir;
+
+ if (!strcmp(events_ent->d_name, ".")
+ || !strcmp(events_ent->d_name, "..")
+ || !strcmp(events_ent->d_name, "enable")
+ || !strcmp(events_ent->d_name, "header_event")
+ || !strcmp(events_ent->d_name, "header_page"))
+ continue;
+
+ scnprintf(sys_path, PATH_MAX, "%s/%s",
+ events_path, events_ent->d_name);
+
+ sys_dir = opendir(sys_path);
+ TEST_ASSERT_VAL("Can't open sys dir", sys_dir);
+
+ while ((sys_ent = readdir(sys_dir))) {
+ if (!strcmp(sys_ent->d_name, ".")
+ || !strcmp(sys_ent->d_name, "..")
+ || !strcmp(sys_ent->d_name, "enable")
+ || !strcmp(sys_ent->d_name, "filter"))
+ continue;
+
+ cnt++;
+ }
+
+ closedir(sys_dir);
+ }
+
+ closedir(events_dir);
+ return cnt;
+}
+
+static int test__all_tracepoints(struct perf_evlist *evlist)
+{
+ TEST_ASSERT_VAL("wrong events count",
+ count_tracepoints() == evlist->nr_entries);
+
+ return test__checkevent_tracepoint_multi(evlist);
+}
+
struct test__event_st {
const char *name;
__u32 type;
@@ -921,6 +979,10 @@ static struct test__event_st test__events[] = {
.name = "{cycles,instructions}:G,{cycles:G,instructions:G},cycles",
.check = test__group5,
},
+ [33] = {
+ .name = "*:*",
+ .check = test__all_tracepoints,
+ },
};
static struct test__event_st test__events_pmu[] = {
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