On Wed, Mar 06, 2013 at 04:15:02PM +1100, Rusty Russell wrote: > OK, so I've spent a few days benchmarking. Turns out 80% of > virtio_add_buf cases are uni-directional (including the > always-performance-sensitive networking code), and that gets no > performance penalty (though tests with real networking would be > appreciated!). > > I'm not reposting all the "convert driver to virtio_add_outbuf()" > patches: just the scsi one which I didn't have before. I won't actually > remove virtio_add_buf() until the *following* merge window, just to be > sure. Why not send out all the patches in this series? It would be much easier for people to read in one thread. > One annoying thing about benchmarking is that in some cases, speeding up > one side can make the whole thing slower, due to more wakeups. > Device-side polling techniques might be required in future to get more > performance. > > Cheers, > Rusty. > _______________________________________________ > Virtualization mailing list > Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx > https://lists.linuxfoundation.org/mailman/listinfo/virtualization -- Asias _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
