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 zeroc
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 10:45, 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() a
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
>>>
