* Chirantan Ekbote (chiran...@chromium.org) wrote: > On Sat, Sep 19, 2020 at 6:36 AM Vivek Goyal <vgo...@redhat.com> wrote: > > > > Hi All, > > > > virtiofsd default thread pool size is 64. To me it feels that in most of > > the cases thread pool size 1 performs better than thread pool size 64. > > > > I ran virtiofs-tests. > > > > https://github.com/rhvgoyal/virtiofs-tests > > > > And here are the comparision results. To me it seems that by default > > we should switch to 1 thread (Till we can figure out how to make > > multi thread performance better even when single process is doing > > I/O in client). > > > > FWIW, we've observed the same behavior in crosvm. Using a thread pool > for the virtiofs server consistently gave us worse performance than > using a single thread.
Interesting; so it's not just us doing something silly! It does feel like you *should* be able to get some benefit from multiple threads; so I guess some more investigation needed at some time. Dave > Chirantan > > _______________________________________________ > Virtio-fs mailing list > virtio...@redhat.com > https://www.redhat.com/mailman/listinfo/virtio-fs -- Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
