Re: [Qemu-devel] [PATCH 00/10] AHCI emulation support v2

[Stefan Hajnoczi]

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.

Stefan