similar to: [PATCH net-next] vhost_net: stop rx net polling when possible

On Fri, Aug 15, 2014 at 11:40:08AM +0800, Jason Wang wrote: > After rx vq was enabled, we never stop polling its socket. This is sub optimal > when may lead unnecessary wake-ups after the rx net work has already been > queued. This could be optimized by stopping polling the rx net sock when > processing both rx and tx and restart it afterward. This could save unnecessary > wake-ups

Dear R People: Here is a small data frame and two particular formulas: > test.df y x 1 -0.9261650 1 2 1.5702700 2 3 0.1673920 3 4 0.7893085 4 5 0.3576875 5 6 -1.4620915 6 7 -0.5506215 7 8 -0.3480292 8 9 -1.2344036 9 10 0.8502660 10 > summary(lm(exp(y)~x)) Call: lm(formula = exp(y) ~ x) Residuals: Min 1Q Median 3Q Max -1.6360 -0.6435

From f244bcad756c4f761627557bb7f315b1d8f22fb2 Mon Sep 17 00:00:00 2001 From: Dor Laor <dor.laor@qumranet.com> Date: Thu, 20 Dec 2007 13:26:30 +0200 Subject: [PATCH] [VIRTIO-NET] Rx performance improvement The current performance are not good enough, the problem lies in qemu tap handling code that caused to pass packets one at a time and also to copy them to a temporal buffer. This patch

From f244bcad756c4f761627557bb7f315b1d8f22fb2 Mon Sep 17 00:00:00 2001 From: Dor Laor <dor.laor@qumranet.com> Date: Thu, 20 Dec 2007 13:26:30 +0200 Subject: [PATCH] [VIRTIO-NET] Rx performance improvement The current performance are not good enough, the problem lies in qemu tap handling code that caused to pass packets one at a time and also to copy them to a temporal buffer. This patch

From 83e942e0c7634121243478fa2f4e3459b33d4a67 Mon Sep 17 00:00:00 2001 From: Dor Laor <dor.laor@qumranet.com> Date: Wed, 19 Dec 2007 23:43:24 +0200 Subject: [PATCH] virtio network device This patch implements the backend support for the virtio network device. The device is optimized for virtualized environments by limiting the number of guest=>host transitions per-packet. In the best

From 83e942e0c7634121243478fa2f4e3459b33d4a67 Mon Sep 17 00:00:00 2001 From: Dor Laor <dor.laor@qumranet.com> Date: Wed, 19 Dec 2007 23:43:24 +0200 Subject: [PATCH] virtio network device This patch implements the backend support for the virtio network device. The device is optimized for virtualized environments by limiting the number of guest=>host transitions per-packet. In the best

Signed-off-by: Peng Tao <bergwolf at gmail.com> --- net/vmw_vsock/virtio_transport.c | 42 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 936d7ee..a5f3833 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -170,6 +170,47 @@

Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Peng Tao <bergwolf at gmail.com> --- net/vmw_vsock/virtio_transport.c | 42 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 936d7ee..95c1162 100644 --- a/net/vmw_vsock/virtio_transport.c +++

Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Peng Tao <bergwolf at gmail.com> --- net/vmw_vsock/virtio_transport.c | 42 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 936d7ee..b7b78ce 100644 --- a/net/vmw_vsock/virtio_transport.c +++

Hello all: This seires is an update of last version of multiqueue support to add multiqueue capability to both tap and virtio-net. Some kinds of tap backends has (macvatp in linux) or would (tap) support multiqueue. In such kind of tap backend, each file descriptor of a tap is a qeueu and ioctls were prodived to attach an exist tap file descriptor to the tun/tap device. So the patch let qemu to

Hello all: This seires is an update of last version of multiqueue support to add multiqueue capability to both tap and virtio-net. Some kinds of tap backends has (macvatp in linux) or would (tap) support multiqueue. In such kind of tap backend, each file descriptor of a tap is a qeueu and ioctls were prodived to attach an exist tap file descriptor to the tun/tap device. So the patch let qemu to

Now that we have a host timer based tx wakeup it waits for 64 packets or timeout before processing them. This might cause the guest to run out of tx buffers while the host holds them up. This is a temporal solution to quickly bring back performance to 800mbps. But a better fix will soon be sent (its not the only problem). Signed-off-by: Dor Laor <dor.laor@qumranet.com> ---

Now that we have a host timer based tx wakeup it waits for 64 packets or timeout before processing them. This might cause the guest to run out of tx buffers while the host holds them up. This is a temporal solution to quickly bring back performance to 800mbps. But a better fix will soon be sent (its not the only problem). Signed-off-by: Dor Laor <dor.laor@qumranet.com> ---

Hello all: This seires is an update of last version of multiqueue support to add multiqueue capability to both tap and virtio-net. Some kinds of tap backends has (macvatp in linux) or would (tap) support multiqueue. In such kind of tap backend, each file descriptor of a tap is a qeueu and ioctls were prodived to attach an exist tap file descriptor to the tun/tap device. So the patch let qemu to

Hello all: This seires is an update of last version of multiqueue support to add multiqueue capability to both tap and virtio-net. Some kinds of tap backends has (macvatp in linux) or would (tap) support multiqueue. In such kind of tap backend, each file descriptor of a tap is a qeueu and ioctls were prodived to attach an exist tap file descriptor to the tun/tap device. So the patch let qemu to

To allow canceling all packets of a connection. Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Peng Tao <bergwolf at gmail.com> --- drivers/vhost/vsock.c | 41 +++++++++++++++++++++++++++++++++++++++++ include/net/af_vsock.h | 3 +++ 2 files changed, 44 insertions(+) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index a504e2e0..fef8808 100644 ---

To allow canceling all packets of a connection. Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Peng Tao <bergwolf at gmail.com> --- drivers/vhost/vsock.c | 41 +++++++++++++++++++++++++++++++++++++++++ include/net/af_vsock.h | 3 +++ 2 files changed, 44 insertions(+) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index a504e2e0..fef8808 100644 ---

On Wed, Dec 07, 2016 at 06:00:20PM +0800, Peng Tao wrote: > Signed-off-by: Peng Tao <bergwolf at gmail.com> > --- > net/vmw_vsock/virtio_transport.c | 36 ++++++++++++++++++++++++++++++++++++ > 1 file changed, 36 insertions(+) > > diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c > index 936d7ee..f88b6ed 100644 > ---

Signed-off-by: Peng Tao <bergwolf at gmail.com> --- net/vmw_vsock/virtio_transport.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 936d7ee..f88b6ed 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -170,6 +170,41 @@

To allow canceling all packets of a connection. Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Peng Tao <bergwolf at gmail.com> --- drivers/vhost/vsock.c | 41 +++++++++++++++++++++++++++++++++++++++++ include/net/af_vsock.h | 3 +++ 2 files changed, 44 insertions(+) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index a504e2e0..db64d51 100644 ---