On 2018年06月30日 14:33, xiangxia.m@gmail.com wrote:
From: Tonghao Zhang
This patch changes the way that lock all vqs
at the same, to lock them one by one. It will
be used for next patch to avoid the deadlock.
Signed-off-by: Tonghao Zhang
---
drivers/vhost/vhost.c | 24 +++---
On 2018年06月30日 14:33, xiangxia.m@gmail.com wrote:
From: Tonghao Zhang
Use the VHOST_NET_VQ_XXX as a subclass for mutex_lock_nested.
Signed-off-by: Tonghao Zhang
---
drivers/vhost/net.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/vhost/net.c b/dri
On 2018年06月30日 14:33, xiangxia.m@gmail.com wrote:
From: Tonghao Zhang
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
---
drivers/vhost/ne
On 2018年06月30日 14:33, xiangxia.m@gmail.com wrote:
From: Tonghao Zhang
This patch improves 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.
We set the poll-us=100us and use the iperf3 to
On 2018年06月30日 00:38, Michael S. Tsirkin wrote:
On Fri, Jun 29, 2018 at 05:09:50PM +0900, Toshiaki Makita wrote:
Under heavy load vhost busypoll may run without suppressing
notification. For example tx zerocopy callback can push tx work while
handle_tx() is running, then busyloop exits due to
Hi Jason,
On 2018/06/29 18:30, Jason Wang wrote:
> On 2018年06月29日 16:09, Toshiaki Makita wrote:
...
>> To fix this, poll the work instead of enabling notification when
>> busypoll is interrupted by something. IMHO signal_pending() and
>> vhost_has_work() are kind of interruptions rather than signa
On 2018/07/02 11:41, Jason Wang wrote:
> On 2018年06月30日 00:38, Michael S. Tsirkin wrote:
>> On Fri, Jun 29, 2018 at 05:09:50PM +0900, Toshiaki Makita wrote:
>>> Under heavy load vhost busypoll may run without suppressing
>>> notification. For example tx zerocopy callback can push tx work while
>>>
On 2018年07月02日 10:45, Toshiaki Makita wrote:
Hi Jason,
On 2018/06/29 18:30, Jason Wang wrote:
On 2018年06月29日 16:09, Toshiaki Makita wrote:
...
To fix this, poll the work instead of enabling notification when
busypoll is interrupted by something. IMHO signal_pending() and
vhost_has_work() ar
On 2018/06/30 1:38, Michael S. Tsirkin wrote:
...
>> Performance numbers:
>>
>> - Bulk transfer from guest to external physical server.
>> [Guest]->vhost_net->tap--(XDP_REDIRECT)-->i40e --(wire)--> [Server]
>> - Set 10us busypoll.
>> - Guest disables checksum and TSO because of host XDP.
>> - M
On 2018年07月02日 10:52, Toshiaki Makita wrote:
On 2018/07/02 11:41, Jason Wang wrote:
On 2018年06月30日 00:38, Michael S. Tsirkin wrote:
On Fri, Jun 29, 2018 at 05:09:50PM +0900, Toshiaki Makita wrote:
Under heavy load vhost busypoll may run without suppressing
notification. For example tx zeroco
On Mon, Jul 2, 2018 at 10:29 AM Jason Wang wrote:
>
>
>
> On 2018年06月30日 14:33, xiangxia.m@gmail.com wrote:
> > From: Tonghao Zhang
> >
> > 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_t
On 2018/07/02 11:54, Jason Wang wrote:
> On 2018年07月02日 10:45, Toshiaki Makita wrote:
>> Hi Jason,
>>
>> On 2018/06/29 18:30, Jason Wang wrote:
>>> On 2018年06月29日 16:09, Toshiaki Makita wrote:
>> ...
To fix this, poll the work instead of enabling notification when
busypoll is interrupted
On 2018年07月02日 12:37, Toshiaki Makita wrote:
On 2018/07/02 11:54, Jason Wang wrote:
On 2018年07月02日 10:45, Toshiaki Makita wrote:
Hi Jason,
On 2018/06/29 18:30, Jason Wang wrote:
On 2018年06月29日 16:09, Toshiaki Makita wrote:
...
To fix this, poll the work instead of enabling notification wh
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