> Le 22 avr. 2014 à 14:40, Lars Ellenberg <[email protected]> a écrit :
> 
> On Mon, Apr 21, 2014 at 11:11:09AM +0200, Ben RUBSON wrote:
>> Hello,
>> 
>> Let's assume that we have a resource which contains several volumes.
>> When an on-line verification is launched, all volumes are verified
>> together, but it seems that the job is made by only one thread.
>> The bottleneck in the on-line verification are not the disks, but the
>> CPU, as it must deal with many (for example) crc32c operations.
>> 
>> So my question is, could we think about an implementation which would
>> start one verification thread for each volume ?
>> It would dramatically speed-up on-line verification (for my own case,
>> with 4 volumes in 1 resource, it would decrease verification time from
>> 56 hours to 14 hours).
> 
> iirc, when we implemented it, the kernel crypto api was supposed
> to get asynchronous hash support "soon", so we did not bother to add our
> own threading/async layer over this.
> 
> Guess that "soon" is very relative.
> 
> Yes, we can add that as feature request
> somewhere on our (not so short) todo list.

Hello,

Any news regarding this feature request, did you think about it ?

Thank you very much !

Ben
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