From: Keith Busch <keith.busch@intel.com>
To: Jens Axboe <axboe@fb.com>
Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
hch@infradead.org
Subject: Re: [PATCH 0/5] Initial support for polled IO
Date: Fri, 6 Nov 2015 22:41:28 +0000 [thread overview]
Message-ID: <20151106224128.GB15185@localhost.localdomain> (raw)
In-Reply-To: <1446830423-25027-1-git-send-email-axboe@fb.com>
On Fri, Nov 06, 2015 at 10:20:18AM -0700, Jens Axboe wrote:
> Hi,
>
> This is a basic framework for supporting polled IO with the block
> layer stack, and added support for sync O_DIRECT IO and the NVMe
> driver.
>
> There are a few things missing to truly productize this, but it's
> very useful for testing. For now, it's a per-device opt-in feature.
> To enable it, you echo 1 to /sys/block/<dev>/queue/io_poll.
This really looks good. I verified similar performance improvements on
various NVMe controller types as well.
Acked-by: Keith Busch <keith.busch@intel.com>
next prev parent reply other threads:[~2015-11-06 22:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-06 17:20 [PATCH 0/5] Initial support for polled IO Jens Axboe
2015-11-06 17:20 ` [PATCH 1/5] block: change ->make_request_fn() and users to return a queue cookie Jens Axboe
2015-11-06 17:20 ` [PATCH 2/5] blk-mq: return tag/queue combo in the make_request_fn handlers Jens Axboe
2015-11-06 17:20 ` [PATCH 3/5] block: add block polling support Jens Axboe
2015-11-06 17:20 ` [PATCH 4/5] NVMe: add blk " Jens Axboe
2015-11-06 23:46 ` Elliott, Robert (Persistent Memory)
2015-11-07 0:58 ` Keith Busch
2015-11-12 1:40 ` Elliott, Robert (Persistent Memory)
2015-11-06 17:20 ` [PATCH 5/5] directio: add block " Jens Axboe
2015-11-06 22:41 ` Keith Busch [this message]
2015-11-07 8:39 ` [PATCH 0/5] Initial support for polled IO Christoph Hellwig
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