Re: [Virtio-fs] virtiofs vs 9p performance(Re: tools/virtiofs: Multi threading seems to hurt performance)

[Miklos Szeredi]

On Tue, Sep 29, 2020 at 3:18 PM Vivek Goyal <vgoyal@redhat.com> wrote:

> - virtiofs cache=none mode is faster than cache=auto mode for this
>   workload.

Not sure why.  One cause could be that readahead is not perfect at
detecting the random pattern.  Could we compare total I/O on the
server vs. total I/O by fio?

Thanks,
Millos