Re: [Qemu-devel] IVSHMEM device performance

2016-04-11 Thread Eric Blake
On 04/11/2016 07:18 AM, Eli Britstein wrote: > [meta-comment] > Thanks, Eli >> >> -- >> MST > - > This email and any files transmitted and/or attachmen

Re: [Qemu-devel] IVSHMEM device performance

2016-04-11 Thread Eli Britstein
> -Original Message- > From: Michael S. Tsirkin [mailto:m...@redhat.com] > Sent: Monday, 11 April, 2016 3:28 PM > To: Markus Armbruster > Cc: Eli Britstein; qemu-devel@nongnu.org; k...@vger.kernel.org > Subject: Re: IVSHMEM device performance > > On Mon, Apr 11, 2016 at 10:56:54AM +0200,

Re: [Qemu-devel] IVSHMEM device performance

2016-04-11 Thread Michael S. Tsirkin
On Mon, Apr 11, 2016 at 10:56:54AM +0200, Markus Armbruster wrote: > Cc: qemu-devel > > Eli Britstein writes: > > > Hi > > > > In a VM, I add a IVSHMEM device, on which the MBUFS mempool resides, and > > also rings I create (I run a DPDK application in the VM). > > I saw there is a performance

Re: [Qemu-devel] IVSHMEM device performance

2016-04-11 Thread Markus Armbruster
Cc: qemu-devel Eli Britstein writes: > Hi > > In a VM, I add a IVSHMEM device, on which the MBUFS mempool resides, and also > rings I create (I run a DPDK application in the VM). > I saw there is a performance penalty if I use such device, instead of > hugepages (the VM's hugepages). My VM's m