On 2016年10月17日 18:39, yue wrote:
hi, jasowang:
according to my test , the vm's network performance is just 20% of
physical ethernet, the thread of vhost easily eat up 100% cpu when under
pressure.
What's you configuration (e.g qemu cli, host and guest kernel versions
and network setups). And how do you measure the performance?
when using multi queue(two queues) the performance goes up by 50%, but it uses
more threads.
if we can come to a conclusion that vhost is bottomneck? or do you have any
idea to improve , first we do not need to care how violent the idea is.
We notice the small packet TCP stream performance was bad in the past,
but not sure it was your case.
thanks
