On Mon, Aug 19, 2013 at 03:36:37PM +0200, Valerio Pachera wrote: > Hi, form my last tests I get nice write speed even without the use of cache. > > qemu -drive file=sheepdog:big,cache=directsync,if=virtio > > dd if=/dev/zero of=c bs=1M count=512 oflag=direct > > 21-29 M/s > > sheep 0.7.0_5_g24cf669 > qemu 1.6.50 This is because we have a recent patch to boost io intensive performance. From your test, it says it works out! Thanks. Yuan |