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Groups > linux.kernel > #1610638
| From | Taeung Song <treeze.taeung@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 3/3] perf annotate: Fix missing number of samples |
| Date | 2017-03-28 14:20 +0200 |
| Message-ID | <tpYgr-7p2-53@gated-at.bofh.it> (permalink) |
| References | <tpx6y-4iG-19@gated-at.bofh.it> <tpx6y-4iG-17@gated-at.bofh.it> <tpHyV-3ND-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Good morning, Arnaldo :)
On 03/28/2017 03:26 AM, Arnaldo Carvalho de Melo wrote:
> Em Mon, Mar 27, 2017 at 04:10:38PM +0900, Taeung Song escreveu:
>> If running 'perf annotate --stdio -l --show-total-period',
>> you can see a problem showing only zero '0' for number of samples.
>>
>> Before:
>> $ perf annotate --stdio -l --show-total-period
>> ...
>> 0 : 400816: push %rbp
>> 0 : 400817: mov %rsp,%rbp
>> 0 : 40081a: mov %edi,-0x24(%rbp)
>> 0 : 40081d: mov %rsi,-0x30(%rbp)
>> 0 : 400821: mov -0x24(%rbp),%eax
>> 0 : 400824: mov -0x30(%rbp),%rdx
>> 0 : 400828: mov (%rdx),%esi
>> 0 : 40082a: mov $0x0,%edx
>> ...
>>
>> The reason is number of samples aren't set
>> in symbol__get_source_line(). so set it ordinarily.
>
> Can you please take a look at:
>
> 0c4a5bcea460 ("perf annotate: Display total number of samples with --show-total-period")
>
> that introduced the --show-total-period code and take it into account in
> this fix?
>
> I.e. from a quick look it did the calculation setting that field in the
> TUI code, where it should have done in the util/annotate.c file, so that
> all UIs would be able to use it.
>
> After your analysis, please add a Fixes: that cset, ok?
>
> I applied the other two patches and added Martin to the CC list, as he
> is the author of that patch and may have something to say here.
>
> - Arnaldo
>
Okey! I look into the cset 0c4a5bcea460.
It is fine but if running 'show-total-period' with '-l',
the problem happen. The reason is to miss setting number of samples
for source_line_samples, so will send v4 added Fixes: and Cc: Martin
(and a bit changed commit log message)
Thanks,
Taeung
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Re: [PATCH v3 3/3] perf annotate: Fix missing number of samples Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-27 20:30 +0200
Re: [PATCH v3 3/3] perf annotate: Fix missing number of samples Taeung Song <treeze.taeung@gmail.com> - 2017-03-28 14:20 +0200
Re: [PATCH v3 3/3] perf annotate: Fix missing number of samples Taeung Song <treeze.taeung@gmail.com> - 2017-03-28 16:50 +0200
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