On 11/11/13 21:58, Arnaldo Carvalho de Melo wrote:
> Em Mon, Nov 11, 2013 at 04:55:59PM -0300, Arnaldo Carvalho de Melo escreveu:
>> Em Mon, Nov 11, 2013 at 04:51:17PM -0300, Arnaldo Carvalho de Melo escreveu:
>>> Hi Adrian,
>>>
>>> I have perf test failing here:
>>>
>>> [root@ssdandy ~]# perf test 21
>>> 21: Test object code reading : FAILED!
>>> [root@ssdandy ~]#
>>>
>>> Try it with -v, but all messages, except for that elf header, which I
>>> assume is for a previous entry that is not suitable and should not be
>>> considered, seems to say all is well, except that the test fails :-\
>>
>> If I try gdb on test__code_reading, go on stepping thru it to try to
>> figure out why it fails, it works :-\
>
> Why this is so is still unclear, but since the other problem I had was
> due to the kernel reducing the max sample_freq, I tried:
>
> [root@ssdandy ~]# echo 10000 > /proc/sys/kernel/perf_event_max_sample_rate
> [root@ssdandy ~]# perf test 21
> 21: Test object code reading : Ok
> [root@ssdandy ~]# echo 7000 > /proc/sys/kernel/perf_event_max_sample_rate
> [root@ssdandy ~]# perf test 21
> 21: Test object code reading : FAILED!
> [root@ssdandy ~]#
From: Adrian Hunter <adrian.hun...@intel.com>
Subject: [PATCH] perf tests: Handle throttle events in 'object code reading'
test
Unhandled events cause an error that fails the test
Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
---
tools/perf/tests/code-reading.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 6d9dc19..85d4919 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -275,8 +275,19 @@ static int process_event(struct machine *machine, struct
perf_evlist *evlist,
if (event->header.type == PERF_RECORD_SAMPLE)
return process_sample_event(machine, evlist, event, state);
- if (event->header.type < PERF_RECORD_MAX)
- return machine__process_event(machine, event, NULL);
+ if (event->header.type == PERF_RECORD_THROTTLE ||
+ event->header.type == PERF_RECORD_UNTHROTTLE)
+ return 0;
+
+ if (event->header.type < PERF_RECORD_MAX) {
+ int ret;
+
+ ret = machine__process_event(machine, event, NULL);
+ if (ret < 0)
+ pr_debug("machine__process_event failed, event type
%u\n",
+ event->header.type);
+ return ret;
+ }
return 0;
}
--
1.7.11.7
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