search for: skb_queue_empti

On 2018?07?02? 20:57, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Factor out generic busy polling logic and will be > used for in tx path in the next patch. And with the patch, > qemu can set differently the busyloop_timeout for rx queue. > > Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> > --- >

On 2018?07?02? 20:57, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Factor out generic busy polling logic and will be > used for in tx path in the next patch. And with the patch, > qemu can set differently the busyloop_timeout for rx queue. > > Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> > --- >

On 11/30/2015 06:44 PM, Michael S. Tsirkin wrote: > On Wed, Nov 25, 2015 at 03:11:29PM +0800, Jason Wang wrote: >> > This patch tries to poll for new added tx buffer or socket receive >> > queue for a while at the end of tx/rx processing. The maximum time >> > spent on polling were specified through a new kind of vring ioctl. >> > >> >

On 11/30/2015 06:44 PM, Michael S. Tsirkin wrote: > On Wed, Nov 25, 2015 at 03:11:29PM +0800, Jason Wang wrote: >> > This patch tries to poll for new added tx buffer or socket receive >> > queue for a while at the end of tx/rx processing. The maximum time >> > spent on polling were specified through a new kind of vring ioctl. >> > >> >

On 12/01/2015 10:43 PM, Michael S. Tsirkin wrote: > On Tue, Dec 01, 2015 at 01:17:49PM +0800, Jason Wang wrote: >> >> On 11/30/2015 06:44 PM, Michael S. Tsirkin wrote: >>> On Wed, Nov 25, 2015 at 03:11:29PM +0800, Jason Wang wrote: >>>>> This patch tries to poll for new added tx buffer or socket receive >>>>> queue for a while at the end of

On 12/01/2015 10:43 PM, Michael S. Tsirkin wrote: > On Tue, Dec 01, 2015 at 01:17:49PM +0800, Jason Wang wrote: >> >> On 11/30/2015 06:44 PM, Michael S. Tsirkin wrote: >>> On Wed, Nov 25, 2015 at 03:11:29PM +0800, Jason Wang wrote: >>>>> This patch tries to poll for new added tx buffer or socket receive >>>>> queue for a while at the end of

On 2018?06?30? 14:33, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Factor out generic busy polling logic and will be > used for tx path in the next patch. And with the patch, > qemu can set differently the busyloop_timeout for rx queue. > > Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> > --- >

On 2018?07?03? 13:48, Tonghao Zhang wrote: > On Tue, Jul 3, 2018 at 10:12 AM Jason Wang <jasowang at redhat.com> wrote: >> >> >> On 2018?07?02? 20:57, xiangxia.m.yue at gmail.com wrote: >>> From: Tonghao Zhang <xiangxia.m.yue at gmail.com> >>> >>> Factor out generic busy polling logic and will be >>> used for in tx path in the

On Wed, Jun 15, 2016 at 04:38:17PM +0800, Jason Wang wrote: > We used to queue tx packets in sk_receive_queue, this is less > efficient since it requires spinlocks to synchronize between producer > and consumer. > > This patch tries to address this by: > > - introduce a new mode which will be only enabled with IFF_TX_ARRAY > set and switch from sk_receive_queue to a

We used to queue tx packets in sk_receive_queue, this is less efficient since it requires spinlocks to synchronize between producer and consumer. This patch tries to address this by: - introduce a new mode which will be only enabled with IFF_TX_ARRAY set and switch from sk_receive_queue to a fixed size of skb array with 256 entries in this mode. - introduce a new proto_ops peek_len which was

We used to queue tx packets in sk_receive_queue, this is less efficient since it requires spinlocks to synchronize between producer and consumer. This patch tries to address this by: - introduce a new mode which will be only enabled with IFF_TX_ARRAY set and switch from sk_receive_queue to a fixed size of skb array with 256 entries in this mode. - introduce a new proto_ops peek_len which was

On 2018?08?01? 11:00, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Factor out generic busy polling logic and will be > used for in tx path in the next patch. And with the patch, > qemu can set differently the busyloop_timeout for rx queue. > > In the handle_tx, the busypoll will vhost_net_disable/enable_vq > because we

On 2018?08?01? 11:00, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Factor out generic busy polling logic and will be > used for in tx path in the next patch. And with the patch, > qemu can set differently the busyloop_timeout for rx queue. > > In the handle_tx, the busypoll will vhost_net_disable/enable_vq > because we

When built with rcu checks enabled, vhost triggers bogus warnings as vhost features are read without dev->mutex sometimes, and private pointer is read with our kind of rcu where work serves as a read side critical section. Fixing it properly is not trivial. Disable the warnings by stubbing out the checks for now. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Changes from

When built with rcu checks enabled, vhost triggers bogus warnings as vhost features are read without dev->mutex sometimes, and private pointer is read with our kind of rcu where work serves as a read side critical section. Fixing it properly is not trivial. Disable the warnings by stubbing out the checks for now. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- Changes from

We used to queue tx packets in sk_receive_queue, this is less efficient since it requires spinlocks to synchronize between producer and consumer. This patch tries to address this by: - switch from sk_receive_queue to a skb_array, and resize it when tx_queue_len was changed. - introduce a new proto_ops peek_len which was used for peeking the skb length. - implement a tun version of peek_len

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Factor out generic busy polling logic and will be used for tx path in the next patch. And with the patch, qemu can set differently the busyloop_timeout for rx queue. Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> --- drivers/vhost/net.c | 92 ++++++++++++++++++++++++++++++----------------------- 1 file changed, 53

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Factor out generic busy polling logic and will be used for in tx path in the next patch. And with the patch, qemu can set differently the busyloop_timeout for rx queue. Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> --- drivers/vhost/net.c | 94 +++++++++++++++++++++++++++++++---------------------- 1 file changed, 55

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Factor out generic busy polling logic and will be used for in tx path in the next patch. And with the patch, qemu can set differently the busyloop_timeout for rx queue. Signed-off-by: Tonghao Zhang <zhangtonghao at didichuxing.com> --- drivers/vhost/net.c | 94 +++++++++++++++++++++++++++++++---------------------- 1 file changed, 55

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> This patches improve the guest receive and transmit performance. On the handle_tx side, we poll the sock receive queue at the same time. handle_rx do that in the same way. For more performance report, see patch 4. v3 -> v4: fix some issues v2 -> v3: This patches are splited from previous big patch: