From: Chris Wright <chrisw@sous-sol.org>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: kvm-devel <kvm-devel@lists.sourceforge.net>,
Anthony Liguori <aliguori@us.ibm.com>,
virtualization@lists.linux-foundation.org,
Jens Axboe <jens.axboe@oracle.com>
Subject: Re: [PATCH 1/2] virtio: block: set max_segment_size and max_sectors to infinite.
Date: Wed, 3 Dec 2008 10:43:21 -0800 [thread overview]
Message-ID: <20081203184321.GC19628@sequoia.sous-sol.org> (raw)
In-Reply-To: <200811171724.15682.rusty@rustcorp.com.au>
* Rusty Russell (rusty@rustcorp.com.au) wrote:
> Setting max_segment_size allows more than 64k per sg element, unless
> the host specified a limit. Setting max_sectors indicates that our
> max_hw_segments is the only limit.
We had been using a simple hardocded constant to increase max sectors to
improve throughput. This (along with 2/2) are tested and showing nice numbers.
Acked-by: Chris Wright <chrisw@sous-sol.org>
prev parent reply other threads:[~2008-12-03 18:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200811141215.33950.rusty@rustcorp.com.au>
[not found] ` <20081114093023.GQ26778@kernel.dk>
2008-11-17 6:52 ` [PATCH RFC] virtio: use QUEUE_FLAG_CLUSTER in virtio_blk Rusty Russell
2008-11-17 6:54 ` [PATCH 1/2] virtio: block: set max_segment_size and max_sectors to infinite Rusty Russell
2008-11-17 7:04 ` [PATCH 2/2] virtio: block: dynamic maximum segments Rusty Russell
2008-11-26 17:42 ` [PATCH 1/2] virtio: block: set max_segment_size and max_sectors to infinite Chris Wright
2008-11-27 13:00 ` Rusty Russell
2008-11-27 13:04 ` Jens Axboe
2008-12-03 18:43 ` Chris Wright [this message]
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