* blkparse unordered entries
@ 2016-09-28 2:56 Alexey Egorov
2016-09-28 13:07 ` Alexey Egorov
2016-09-28 13:52 ` Alexey Egorov
0 siblings, 2 replies; 3+ messages in thread
From: Alexey Egorov @ 2016-09-28 2:56 UTC (permalink / raw)
To: linux-btrace
Hello,
I'm getting multiple entries with unordered timestamps using version
1.1.0 of blkparse:
$ verify_blkparse test.out
...
Events 184855: 127 unordered, 57773 aliases
Any chance it would be fixed? For now I'm going to use 1.0.1, which
doesn't have this problem.
Thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: blkparse unordered entries
2016-09-28 2:56 blkparse unordered entries Alexey Egorov
@ 2016-09-28 13:07 ` Alexey Egorov
2016-09-28 13:52 ` Alexey Egorov
1 sibling, 0 replies; 3+ messages in thread
From: Alexey Egorov @ 2016-09-28 13:07 UTC (permalink / raw)
To: linux-btrace
More info on this:
I can observe this bug only when piping blktrace output to blkparse.
When I use temporary files all seems to be OK.
Also, I found that this particular commit causes this bug:
http://git.kernel.org/cgit/linux/kernel/git/axboe/blktrace.git/commit/?id›f422b17cb2330f94376f8ca82a6e6cc496f9a3
2016-09-28 7:56 GMT+05:00 Alexey Egorov <alex.only.d@gmail.com>:
> Hello,
>
> I'm getting multiple entries with unordered timestamps using version
> 1.1.0 of blkparse:
>
> $ verify_blkparse test.out
> ...
> Events 184855: 127 unordered, 57773 aliases
>
> Any chance it would be fixed? For now I'm going to use 1.0.1, which
> doesn't have this problem.
>
> Thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: blkparse unordered entries
2016-09-28 2:56 blkparse unordered entries Alexey Egorov
2016-09-28 13:07 ` Alexey Egorov
@ 2016-09-28 13:52 ` Alexey Egorov
1 sibling, 0 replies; 3+ messages in thread
From: Alexey Egorov @ 2016-09-28 13:52 UTC (permalink / raw)
To: linux-btrace
Actually it seems that bug is in the blktrace (not blkparse) when
using piped mode and ncpu > 1.
Overriding ncpu to 1 solves this problem.
2016-09-28 18:07 GMT+05:00 Alexey Egorov <alex.only.d@gmail.com>:
> More info on this:
>
> I can observe this bug only when piping blktrace output to blkparse.
> When I use temporary files all seems to be OK.
> Also, I found that this particular commit causes this bug:
> http://git.kernel.org/cgit/linux/kernel/git/axboe/blktrace.git/commit/?id›f422b17cb2330f94376f8ca82a6e6cc496f9a3
>
>
> 2016-09-28 7:56 GMT+05:00 Alexey Egorov <alex.only.d@gmail.com>:
>> Hello,
>>
>> I'm getting multiple entries with unordered timestamps using version
>> 1.1.0 of blkparse:
>>
>> $ verify_blkparse test.out
>> ...
>> Events 184855: 127 unordered, 57773 aliases
>>
>> Any chance it would be fixed? For now I'm going to use 1.0.1, which
>> doesn't have this problem.
>>
>> Thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-09-28 13:52 UTC | newest]
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