search for: multiqueu

We use single queue even if multiqueue is enabled and let admin to enable it through ethtool later. This is used to avoid possible regression (small packet TCP stream transmission). But looks like an overkill since: - single queue user can disable multiqueue when launching qemu - brings extra troubles for the management since it needs...

We use single queue even if multiqueue is enabled and let admin to enable it through ethtool later. This is used to avoid possible regression (small packet TCP stream transmission). But looks like an overkill since: - single queue user can disable multiqueue when launching qemu - brings extra troubles for the management since it needs...

On Sun, Nov 16, 2014 at 06:18:18PM +0200, Gleb Natapov wrote: > Hi Michael, > > I am playing with vhost multiqueue capability and have a question about > vhost multiqueue and RSS (receive side steering). My setup has Mellanox > ConnectX-3 NIC which supports multiqueue and RSS. Network related > parameters for qemu are: > > -netdev tap,id=hn0,script=qemu-ifup.sh,vhost=on,queues=4 > -dev...

On Sun, Nov 16, 2014 at 06:18:18PM +0200, Gleb Natapov wrote: > Hi Michael, > > I am playing with vhost multiqueue capability and have a question about > vhost multiqueue and RSS (receive side steering). My setup has Mellanox > ConnectX-3 NIC which supports multiqueue and RSS. Network related > parameters for qemu are: > > -netdev tap,id=hn0,script=qemu-ifup.sh,vhost=on,queues=4 > -dev...

From: "Michael S. Tsirkin" <mst at redhat.com> Date: Fri, 25 Nov 2016 06:43:08 +0200 > On Fri, Nov 25, 2016 at 12:37:26PM +0800, Jason Wang wrote: >> We use single queue even if multiqueue is enabled and let admin to >> enable it through ethtool later. This is used to avoid possible >> regression (small packet TCP stream transmission). But looks like an >> overkill since: >> >> - single queue user can disable multiqueue when launching qemu >> - b...

From: "Michael S. Tsirkin" <mst at redhat.com> Date: Fri, 25 Nov 2016 06:43:08 +0200 > On Fri, Nov 25, 2016 at 12:37:26PM +0800, Jason Wang wrote: >> We use single queue even if multiqueue is enabled and let admin to >> enable it through ethtool later. This is used to avoid possible >> regression (small packet TCP stream transmission). But looks like an >> overkill since: >> >> - single queue user can disable multiqueue when launching qemu >> - b...

On Sun, Nov 16, 2014 at 08:56:04PM +0200, Michael S. Tsirkin wrote: > On Sun, Nov 16, 2014 at 06:18:18PM +0200, Gleb Natapov wrote: > > Hi Michael, > > > > I am playing with vhost multiqueue capability and have a question about > > vhost multiqueue and RSS (receive side steering). My setup has Mellanox > > ConnectX-3 NIC which supports multiqueue and RSS. Network related > > parameters for qemu are: > > > > -netdev tap,id=hn0,script=qemu-ifup.sh,vhost...

On Sun, Nov 16, 2014 at 08:56:04PM +0200, Michael S. Tsirkin wrote: > On Sun, Nov 16, 2014 at 06:18:18PM +0200, Gleb Natapov wrote: > > Hi Michael, > > > > I am playing with vhost multiqueue capability and have a question about > > vhost multiqueue and RSS (receive side steering). My setup has Mellanox > > ConnectX-3 NIC which supports multiqueue and RSS. Network related > > parameters for qemu are: > > > > -netdev tap,id=hn0,script=qemu-ifup.sh,vhost...

On Fri, Nov 25, 2016 at 12:37:26PM +0800, Jason Wang wrote: > We use single queue even if multiqueue is enabled and let admin to > enable it through ethtool later. This is used to avoid possible > regression (small packet TCP stream transmission). But looks like an > overkill since: > > - single queue user can disable multiqueue when launching qemu > - brings extra troubles for...

...All: Now virtio-vsock only supports two vqs(tx and rx), that means if multiple sockets in the guest will use the same vq to transmit the message and get the response. In this way, the bandwidth will be limited to ~700MB/s. So if there are multiple applications in the guest, we should support "Multiqueue" feature for Virtio-vsock. I want to know whether we already have plans to support multiqueue or already have simple demo that can be used. If not, I will try to implement this feature. Thanks, Yiwen.

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MQ for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_MQ to program packet steering for unidirectional protocols. --- Changes in v6...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MQ for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_MQ to program packet steering for unidirectional protocols. --- Changes in v6...

Commit 4490001029012539937ff02778fe6180613fa949 ("virtio-net: enable multiqueue by default") blindly set the affinity instead of queues during probe which can cause a mismatch of #queues between guest and host. This patch fixes it by setting queues. Reported-by: Theodore Ts'o <tytso at mit.edu> Tested-by: Theodore Ts'o <tytso at mit.edu> Cc: Neil Hor...

Commit 4490001029012539937ff02778fe6180613fa949 ("virtio-net: enable multiqueue by default") blindly set the affinity instead of queues during probe which can cause a mismatch of #queues between guest and host. This patch fixes it by setting queues. Reported-by: Theodore Ts'o <tytso at mit.edu> Tested-by: Theodore Ts'o <tytso at mit.edu> Cc: Neil Hor...

...sh -----Original Message----- From: kvm-owner at vger.kernel.org [mailto:kvm-owner at vger.kernel.org] On Behalf Of Michael S. Tsirkin Sent: Monday, November 17, 2014 12:26 AM To: Gleb Natapov Cc: kvm at vger.kernel.org; Jason Wang; virtualization at lists.linux-foundation.org Subject: Re: vhost + multiqueue + RSS question. On Sun, Nov 16, 2014 at 06:18:18PM +0200, Gleb Natapov wrote: > Hi Michael, > > I am playing with vhost multiqueue capability and have a question > about vhost multiqueue and RSS (receive side steering). My setup has > Mellanox > ConnectX-3 NIC which supports...

...sh -----Original Message----- From: kvm-owner at vger.kernel.org [mailto:kvm-owner at vger.kernel.org] On Behalf Of Michael S. Tsirkin Sent: Monday, November 17, 2014 12:26 AM To: Gleb Natapov Cc: kvm at vger.kernel.org; Jason Wang; virtualization at lists.linux-foundation.org Subject: Re: vhost + multiqueue + RSS question. On Sun, Nov 16, 2014 at 06:18:18PM +0200, Gleb Natapov wrote: > Hi Michael, > > I am playing with vhost multiqueue capability and have a question > about vhost multiqueue and RSS (receive side steering). My setup has > Mellanox > ConnectX-3 NIC which supports...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MQ for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_MQ to program packet steering for unidirectional protocols. Signed-off-by: Mic...

Add multiqueue support to virtio network device. Add a new feature flag VIRTIO_NET_F_MQ for this feature, a new configuration field max_virtqueue_pairs to detect supported number of virtqueues as well as a new command VIRTIO_NET_CTRL_MQ to program packet steering for unidirectional protocols. Signed-off-by: Mic...

...2014 at 09:44:23AM +0200, Gleb Natapov wrote: > > On Sun, Nov 16, 2014 at 08:56:04PM +0200, Michael S. Tsirkin wrote: > > > On Sun, Nov 16, 2014 at 06:18:18PM +0200, Gleb Natapov wrote: > > > > Hi Michael, > > > > > > > > I am playing with vhost multiqueue capability and have a question about > > > > vhost multiqueue and RSS (receive side steering). My setup has Mellanox > > > > ConnectX-3 NIC which supports multiqueue and RSS. Network related > > > > parameters for qemu are: > > > > > > > &g...

...2014 at 09:44:23AM +0200, Gleb Natapov wrote: > > On Sun, Nov 16, 2014 at 08:56:04PM +0200, Michael S. Tsirkin wrote: > > > On Sun, Nov 16, 2014 at 06:18:18PM +0200, Gleb Natapov wrote: > > > > Hi Michael, > > > > > > > > I am playing with vhost multiqueue capability and have a question about > > > > vhost multiqueue and RSS (receive side steering). My setup has Mellanox > > > > ConnectX-3 NIC which supports multiqueue and RSS. Network related > > > > parameters for qemu are: > > > > > > > &g...