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Date:	Wed, 9 Jul 2014 23:20:40 -0700
From:	Christoph Hellwig <>
To:	"Elliott, Robert (Server Storage)" <>
Cc:	Jens Axboe <>,
	"" <>,
	Christoph Hellwig <>,
	James Bottomley <>,
	Bart Van Assche <>,
	Benjamin LaHaise <>,
	"" <>,
	"" <>
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

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, and a scsi-mq.3-bisect-2 branch that is just after
the merge of the block tree to get started.

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