[Qemu-devel] Question about posixaio thread number.

Hi Anthony, I started a guest with cache=none and aio=threads When i did some io tests in Guest say dd like dd if=/dev/zero oflag=direct of=/mnt/sdb1/date.img bs=4k count=262114 qemu will start one or several threads to perform IO requests. It seems qemu makes use of its own posixaio. I'm

[Qemu-devel] Question about posixaio thread number.

Hi Anthony, I started a guest with cache=none and aio=threads When i did some io tests in Guest say dd like dd if=/dev/zero oflag=direct of=/mnt/sdb1/date.img bs=4k count=262114 qemu will start one or several threads to perform IO requests. It seems qemu makes use of its own posixaio. I'm

Re: [Qemu-devel] Question about posixaio thread number.

On Wed, Aug 3, 2011 at 6:19 AM, Gui Jianfeng guijianf...@cn.fujitsu.com wrote: When i did some io tests in Guest say dd like dd if=/dev/zero oflag=direct of=/mnt/sdb1/date.img bs=4k count=262114 qemu will start one or several threads to perform IO requests. It seems qemu makes use of its own