Re: [PATCH V6 0/2] Improve virtio-blk performance
From: Christoph Hellwig <hch@lst.de>
Date: 2012-08-07 09:16:33
Also in:
lkml, virtualization
On Tue, Aug 07, 2012 at 04:47:13PM +0800, Asias He wrote:
1) Ramdisk device
With bio-based IO path, sequential read/write, random read/write
IOPS boost : 28%, 24%, 21%, 16%
Latency improvement: 32%, 17%, 21%, 16%
2) Fusion IO device
With bio-based IO path, sequential read/write, random read/write
IOPS boost : 11%, 11%, 13%, 10%
Latency improvement: 10%, 10%, 12%, 10%Do you also have numbers for normal SAS/SATA disks? The changelog should have a reall good explanation of why this is optional, and numbers are a very important part of that.