Re: [PATCH] verify: Fix latency log for verify commands.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Feb 9, 2015 at 6:17 PM, Jens Axboe <axboe@xxxxxxxxx> wrote:
> On 02/09/2015 02:39 AM, Andrey Kuzmin wrote:
>>
>> On Mon, Feb 9, 2015 at 6:53 AM, Gwendal Grignou <gwendal@xxxxxxxxxxxx>
>> wrote:
>>>
>>> When commands when requeued for the verify operation,
>>> their start time was not reset, resulting in bogus latency graphs.
>>
>>
>> Does it really make sense to account for the verification pass in the
>> latency profile?
>
>
> Why not? If you are doing a full write then verification, you get a full set
> of separate read and write latencies.

I'd rather get them on a per-pass basis. Imagine an r/w workload being
done with verification pass (just to be on the safe side): I'd rather
keep read-only verification pass latencies separate from the primary
workload latency profile. YMMW :).

>
> --
> Jens Axboe
>
--
To unsubscribe from this list: send the line "unsubscribe fio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Linux SCSI]     [Linux IDE]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux SCSI]

  Powered by Linux