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From: Rusty Russell <rusty@rustcorp.com.au>
To: "Michael S. Tsirkin" <mst@redhat.com>,
	Sasha Levin <levinsasha928@gmail.com>
Cc: Avi Kivity <avi@redhat.com>,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
	markmc@redhat.com
Subject: Re: [PATCH] virtio-ring: Use threshold for switching to indirect descriptors
Date: Thu, 08 Dec 2011 20:14:20 +1030	[thread overview]
Message-ID: <87r50fgzyj.fsf@rustcorp.com.au> (raw)
In-Reply-To: <20111207154816.GA23845@redhat.com>

On Wed, 7 Dec 2011 17:48:17 +0200, "Michael S. Tsirkin" <mst@redhat.com> wrote:
> On Wed, Dec 07, 2011 at 04:02:45PM +0200, Sasha Levin wrote:
> > On Sun, 2011-12-04 at 20:23 +0200, Sasha Levin wrote:
> > 
> > [snip]
> > 
> > Rusty, Michael, does the below looks a reasonable optimization for you?
> 
> OK overall but a bit hard to say for sure as it looks pretty incomplete ...

A static threshold is very hackish; we need to either initialize it to
a proven-good value (since noone will ever change it) or be cleverer.

Thanks,
Rusty.

  parent reply	other threads:[~2011-12-08 10:24 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-29  9:33 [PATCH] virtio-ring: Use threshold for switching to indirect descriptors Sasha Levin
2011-11-29  9:33 ` Sasha Levin
2011-11-29 12:56 ` Michael S. Tsirkin
2011-11-29 12:56   ` Michael S. Tsirkin
2011-11-29 13:34   ` Sasha Levin
2011-11-29 13:34     ` Sasha Levin
2011-11-29 13:54     ` Michael S. Tsirkin
2011-11-29 13:54     ` Michael S. Tsirkin
2011-11-29 14:21       ` Sasha Levin
2011-11-29 14:21         ` Sasha Levin
2011-11-29 14:54         ` Michael S. Tsirkin
2011-11-29 14:54           ` Michael S. Tsirkin
2011-11-29 14:58           ` Avi Kivity
2011-11-29 14:58             ` Avi Kivity
2011-11-30 16:11             ` Sasha Levin
2011-11-30 16:11               ` Sasha Levin
2011-11-30 16:17               ` Sasha Levin
2011-11-30 16:17                 ` Sasha Levin
2011-12-01  2:42               ` Rusty Russell
2011-12-01  2:42                 ` Rusty Russell
2011-12-01  7:58                 ` Michael S. Tsirkin
2011-12-01  7:58                   ` Michael S. Tsirkin
2011-12-01  8:09                   ` Sasha Levin
2011-12-01  8:09                     ` Sasha Levin
2011-12-01 10:26                     ` Michael S. Tsirkin
2011-12-01 10:26                       ` Michael S. Tsirkin
2011-12-02  0:46                       ` Rusty Russell
2011-12-02  0:46                         ` Rusty Russell
2011-12-03 11:50                         ` Sasha Levin
2011-12-03 11:50                           ` Sasha Levin
2011-12-04 11:06                           ` Michael S. Tsirkin
2011-12-04 11:06                             ` Michael S. Tsirkin
2011-12-04 15:15                             ` Michael S. Tsirkin
2011-12-04 15:15                               ` Michael S. Tsirkin
2011-12-04 11:52                           ` Avi Kivity
2011-12-04 11:52                             ` Avi Kivity
2011-12-04 12:01                             ` Michael S. Tsirkin
2011-12-04 12:01                               ` Michael S. Tsirkin
2011-12-04 12:06                               ` Avi Kivity
2011-12-04 12:06                                 ` Avi Kivity
2011-12-04 15:11                                 ` Michael S. Tsirkin
2011-12-04 15:11                                   ` Michael S. Tsirkin
2011-12-04 15:16                                   ` Avi Kivity
2011-12-04 15:16                                     ` Avi Kivity
2011-12-04 16:00                                     ` Michael S. Tsirkin
2011-12-04 16:00                                       ` Michael S. Tsirkin
2011-12-04 16:33                                       ` Avi Kivity
2011-12-04 16:33                                         ` Avi Kivity
2011-12-05  0:10                                     ` Rusty Russell
2011-12-05  0:10                                       ` Rusty Russell
2011-12-05  9:52                                       ` Avi Kivity
2011-12-05  9:52                                         ` Avi Kivity
2011-12-06  5:07                                         ` Rusty Russell
2011-12-06  5:07                                           ` Rusty Russell
2011-12-06  9:58                                           ` Avi Kivity
2011-12-06  9:58                                             ` Avi Kivity
2011-12-06 12:03                                             ` Rusty Russell
2011-12-06 12:03                                             ` Rusty Russell
2011-12-07 13:37                                               ` Avi Kivity
2011-12-07 13:37                                                 ` Avi Kivity
2011-12-04 12:13                             ` Sasha Levin
2011-12-04 12:13                               ` Sasha Levin
2011-12-04 16:22                               ` Michael S. Tsirkin
2011-12-04 16:22                                 ` Michael S. Tsirkin
2011-12-04 17:34                                 ` Sasha Levin
2011-12-04 17:34                                   ` Sasha Levin
2011-12-04 17:37                                   ` Avi Kivity
2011-12-04 17:37                                     ` Avi Kivity
2011-12-04 17:39                                     ` Sasha Levin
2011-12-04 17:39                                       ` Sasha Levin
2011-12-04 18:23                                       ` Sasha Levin
2011-12-04 18:23                                         ` Sasha Levin
2011-12-07 14:02                                         ` Sasha Levin
2011-12-07 14:02                                           ` Sasha Levin
2011-12-07 15:48                                           ` Michael S. Tsirkin
2011-12-07 15:48                                             ` Michael S. Tsirkin
2011-12-08  9:44                                             ` Rusty Russell
2011-12-08  9:44                                             ` Rusty Russell [this message]
2011-12-08 10:37                                               ` Sasha Levin
2011-12-08 10:37                                                 ` Sasha Levin
2011-12-09  5:33                                                 ` Rusty Russell
2011-12-09  5:33                                                 ` Rusty Russell

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