Re: [PATCH v3.4-rc5] block: iocontext->nr_tasks should be initialized to one

From: Jeff Moyer
Date: Tue May 01 2012 - 14:50:04 EST


Jens Axboe <jaxboe@xxxxxxxxxxxx> writes:

> On 2012-05-01 20:31, Jeff Moyer wrote:
>> Jens Axboe <jaxboe@xxxxxxxxxxxx> writes:
>> I know of one project: the venerable dump/restore utility uses CLONE_IO.
>
> Thanks Jeff, now I remember the specifics of what we tested. IIRC, we
> also did numbers back then comparing the coop merging vs specifically
> using CLONE_IO.

Maybe? I picked through some old emails but couldn't find that exact
comparison. It would have been a smart thing to do, though!

-Jeff
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