[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] poor domU VBD performance.
On Thu, Mar 31 2005, Keir Fraser wrote: > > On 31 Mar 2005, at 19:04, Jens Axboe wrote: > > >I cannot immediately see if you call bdev_put() right after queueing > >the > >io? If so, I think the patch looks fine. If not, you are missing the > >last unplug :-) > > That's not the job of bdev_put(): the final unplug is done at the end > of blkio_schedule -- the same place that I do a run_task_queue() when > compling for Linux 2.4. Thanks for confirming, that sounds fine. -- Jens Axboe _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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