On Mon, 2015-11-23 at 15:14 +0100, Paolo Bonzini wrote: > > On 23/11/2015 09:17, Ming Lin wrote: > > On Sat, 2015-11-21 at 14:11 +0100, Paolo Bonzini wrote: > >> > >> On 20/11/2015 01:20, Ming Lin wrote: > >>> One improvment could be to use google's NVMe vendor extension that > >>> I send in another thread, aslo here: > >>> https://git.kernel.org/cgit/linux/kernel/git/mlin/linux.git/log/?h=nvme-google-ext > >>> > >>> Qemu side: > >>> http://www.minggr.net/cgit/cgit.cgi/qemu/log/?h=vhost-nvme.0 > >>> Kernel side also here: > >>> https://git.kernel.org/cgit/linux/kernel/git/mlin/linux.git/log/?h=vhost-nvme.0 > >> > >> How much do you get with vhost-nvme plus vendor extension, compared to > >> 190 MB/s for QEMU? > > > > There is still some bug. I'll update. > > Sure. Fixed it after Thanksgiving holiday :) https://git.kernel.org/cgit/linux/kernel/git/mlin/linux.git/log/?h=vhost-nvme.0-ext Combined with previous test results(lower to higher): qemu-nvme: 148MB/s vhost-nvme + google-ext: 230MB/s qemu-nvme + google-ext + eventfd: 294MB/s virtio-scsi: 296MB/s virtio-blk: 344MB/s "vhost-nvme + google-ext" didn't get good enough performance. Still tuning. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
