Re: [Qemu-devel] [Virtio-fs] [PATCH 0/4] virtiofsd: multithreading preparation part 3

[piaojun]

Hi Stefan,

On 2019/8/5 16:01, Stefan Hajnoczi wrote:
> On Mon, Aug 05, 2019 at 10:52:21AM +0800, piaojun wrote:
>> # fio -direct=1 -time_based -iodepth=1 -rw=randwrite -ioengine=libaio -bs=1M 
>> -size=1G -numjob=1 -runtime=30 -group_reporting -name=file 
>> -filename=/mnt/9pshare/file
> 
> This benchmark configuration (--iodepth=1 --numjobs=1) cannot benefit
> from virtiofsd multithreading.  Have you measured a regression when this
> patch series is applied?
> 
> If your benchmark is unrelated to this patch series, let's discuss it in
> a separate email thread.  fuse_buf_copy() can be optimized to use
> pwritev().
> 
> Thanks,
> Stefan

Yes, I have not applied your patch series and test. As you said, I will
discuss *pwritev* in another email.

Thanks,
Jun

>