[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] poor domU VBD performance.
On Thu, Mar 31 2005, Ian Pratt wrote: > > > > I've checked in something along the lines of what you > > described into > > > both the 2.0-testing and the unstable trees. Looks to have > > identical > > > performance to the original simple patch, at least for a bulk 'dd'. > > > > Can you post the patch here for review? Or just point me > > somewhere I can view it. > > Jens, > > Thanks for your help on this. > > Here's Keirs updated patch: > http://xen.bkbits.net:8080/xen-2.0-testing.bk/gnupatch@424c1abd7LgWMiask > LEEAAX7ffdkXQ > > Which is based on this earlier patch from you: > http://xen.bkbits.net:8080/xen-2.0-testing.bk/gnupatch@424bba4091aV1FuNk > sY_4w_z4Tvr3g 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 :-) -- Jens Axboe _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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