linux-kernel - Re: dm stripe: add DAX support

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Date:	Fri, 24 Jun 2016 18:42:20 +0000
From:	"Kani, Toshimitsu" <toshi.kani@....com>
To:	"snitzer@...hat.com" <snitzer@...hat.com>
CC:	"linux-raid@...r.kernel.org" <linux-raid@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"dan.j.williams@...el.com" <dan.j.williams@...el.com>,
	"dm-devel@...hat.com" <dm-devel@...hat.com>,
	"ross.zwisler@...ux.intel.com" <ross.zwisler@...ux.intel.com>,
	"linux-nvdimm@...1.01.org" <linux-nvdimm@...1.01.org>,
	"agk@...hat.com" <agk@...hat.com>
Subject: Re: dm stripe: add DAX support

On Fri, 2016-06-24 at 14:29 -0400, Mike Snitzer wrote:
> On Fri, Jun 24 2016 at  2:23pm -0400,
> Toshi Kani <toshi.kani@....com> wrote:
 :
> Thanks, once jens queues the block changes I'll be able to pull this in
> to linux-dm.git
> 
> BTW, if in your testing you could evaluate/quantify any extra overhead
> from DM that'd be useful to share.  It could be there are bottlenecks
> that need to be fixed, etc.

I ran some performance tests as sanity checks (results are in ballpark), but
have not verified them carefully.  Yes, I will check to see if there are any
bottlenecks.

Thanks!
-Toshi