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Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2
From: |
Alexander Graf |
Subject: |
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2 |
Date: |
Sun, 21 Nov 2010 03:32:12 +0100 |
On 19.11.2010, at 10:12, Stefan Hajnoczi wrote:
> On Thu, Nov 18, 2010 at 11:24 PM, Alexander Graf <address@hidden> wrote:
>> linux-uztg:~ # dd if=/dev/sdc of=/dev/null bs=10M count=300 iflag=direct
>
> That's a big block size. bs=8k is interesting too because we see the
> per-request overhead. Since IDE, SATA, and virtio have different
> hardware interfaces that the guest drives we may see an interesting
> picture with small block sizes.
IDE: 60MB/s
SATA: 100MB/s
virtio: 120 MB/s
I had a pretty big jitter on that one though, with SATA going between 80MB and
120MB :). But overall, it's the same picture as the one with big block sizes.
Alex
- [Qemu-devel] Re: [PATCH 08/10] ahci: add ahci emulation, (continued)
[Qemu-devel] Re: [PATCH 00/10] AHCI emulation support v2, Stefan Hajnoczi, 2010/11/18
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Kevin Wolf, 2010/11/18
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Kevin Wolf, 2010/11/19
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Gerd Hoffmann, 2010/11/19
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Kevin Wolf, 2010/11/19
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Alexander Graf, 2010/11/19
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Kevin Wolf, 2010/11/19
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Alexander Graf, 2010/11/20
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Kevin Wolf, 2010/11/22
Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2, Gerd Hoffmann, 2010/11/19