Christoph Hellwig <hch <at> lst.de> writes: > Michael suggested to me a while ago to try MSI with virtio-blk and I > played with this small patch: > which gave about 5% speedups on 4k sized reads and writes, see the full > iozone output I attached. > > File size set to 131072 KB > Record Size 4 KB > O_DIRECT feature enabled > Command line used: iozone -s 128m -r 4k -I -f /dev/sdb Is /dev/sdb a local disk? other? What was the qemu command line parameters? specifically, what cache settings were used when opening /dev/sdb (Am actually interested in the differences between native and qemu) Thanks very much, Eran -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html