From: Christoph Hellwig <hch@infradead.org>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Rusty Russell <rusty@rustcorp.com.au>,
Chris Wright <chrisw@sous-sol.org>, Jens Axboe <axboe@kernel.dk>,
Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/5] RFC: ->make_request support for virtio-blk
Date: Wed, 5 Oct 2011 17:53:30 -0400 [thread overview]
Message-ID: <20111005215330.GA13514@infradead.org> (raw)
In-Reply-To: <20111005203116.GM30146@redhat.com>
On Wed, Oct 05, 2011 at 04:31:16PM -0400, Vivek Goyal wrote:
> So you no longer believe that request queue overhead can be brought
> down to mangeable levels for these fast devices. And instead go for
> bio based drivers and give up on merging and implement own FLUSH/FUA
> machinery.
Not in a reasonable time frame. Having a common interface is still the
grand plan, but the virtio performance issues are hurting people so
badly that we need a fix soon.
prev parent reply other threads:[~2011-10-05 21:53 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-05 19:54 [PATCH 0/5] RFC: ->make_request support for virtio-blk Christoph Hellwig
2011-10-05 19:54 ` [PATCH 1/5] block: add bio_map_sg Christoph Hellwig
2011-10-05 22:51 ` Boaz Harrosh
2011-10-06 13:40 ` Christoph Hellwig
2011-10-05 19:54 ` [PATCH 2/5] virtio: support unlocked queue kick Christoph Hellwig
2011-10-06 8:42 ` Stefan Hajnoczi
[not found] ` <87r52qgaf3.fsf@rustcorp.com.au>
2011-10-06 13:19 ` Michael S. Tsirkin
2011-11-01 14:40 ` Michael S. Tsirkin
2011-11-02 3:19 ` Rusty Russell
2011-11-02 7:25 ` Christoph Hellwig
2011-11-03 4:01 ` Rusty Russell
2011-11-03 5:15 ` Rusty Russell
2011-11-03 6:45 ` Minchan Kim
2011-10-05 19:54 ` [PATCH 3/5] virtio-blk: remove the unused list of pending requests Christoph Hellwig
2011-10-05 19:54 ` [PATCH 4/5] virtio-blk: reimplement the serial attribute without using requests Christoph Hellwig
2011-10-05 19:54 ` [PATCH 5/5] virtio-blk: implement ->make_request Christoph Hellwig
2011-10-06 1:52 ` Rusty Russell
2011-10-06 13:42 ` Christoph Hellwig
2011-10-06 13:53 ` Jens Axboe
2011-10-05 20:31 ` [PATCH 0/5] RFC: ->make_request support for virtio-blk Vivek Goyal
2011-10-05 21:53 ` Christoph Hellwig [this message]
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