Messages in this thread | | | From | "Elliott, Robert (Server Storage)" <> | Subject | RE: scsi-mq V2 | Date | Thu, 10 Jul 2014 15:51:44 +0000 |
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> -----Original Message----- > From: Christoph Hellwig [mailto:hch@infradead.org] > Sent: Thursday, 10 July, 2014 1:21 AM > To: Elliott, Robert (Server Storage) > Cc: Jens Axboe; dgilbert@interlog.com; Christoph Hellwig; James Bottomley; > Bart Van Assche; Benjamin LaHaise; linux-scsi@vger.kernel.org; linux- > kernel@vger.kernel.org > Subject: Re: scsi-mq V2 > > On Thu, Jul 10, 2014 at 12:53:36AM +0000, Elliott, Robert (Server Storage) > wrote: > > the problem still occurs - fio results in low or 0 IOPS, with perf top > > reporting unusual amounts of time spent in do_io_submit and io_submit. > > The diff between the two version doesn't show too much other possible > interesting commits, the most interesting being some minor block > updates. > > I guess we'll have to a manual bisect, I've pushed out a
> scsi-mq.3-bisect-1 branch that is rebased to just before the merge of > the block tree
good.
> and a scsi-mq.3-bisect-2 branch that is just after the merge of the > block tree to get started.
good.
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