qemu-devel-bounces+abelg=il.ibm....@nongnu.org wrote on 07/04/2013 02:31:20 PM:
> From: Zhangleiqiang <zhangleiqi...@huawei.com> > To: Stefan Hajnoczi <stefa...@redhat.com>, > Cc: Zhangleiqiang <zhangleiqi...@huawei.com>, Stefan Hajnoczi > <stefa...@gmail.com>, "Luohao \(brian\)" <brian.luo...@huawei.com>, > "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, Haofeng <haof...@huawei.com> > Date: 07/04/2013 02:31 PM > Subject: [Qemu-devel] 答复: 答复: question about performance of dataplane > Sent by: qemu-devel-bounces+abelg=il.ibm....@nongnu.org > > Hi, Stefan: > > Follow your advice, I have finished the benchmarks with multiple > vcpu (smp) and parallel I/O workloads. > The results still show that the performance of disk with > dataplane enabled did not have advantage over non-dataplane under > Random write mode. But under the Sequence write mode, the former has > obvious advantage. Hi, Leiqzhang Interesting numbers. How many cores the host has ? was HT enabled ? Did you try to see what happens when you run more than 1 guest and when you create at least 1 VCPU per core in the host ?
