Re: Network I/O performance

Avi Kivity
2009-05-19T04:53:52Z

Herbert Xu wrote:
>> Yes, there's a known issue with UDP, where we don't report congestion
>> and the queues start dropping packets. There's a patch for tun queued
>> for the next merge window; you'll need a 2.6.31 host for that IIRC
>> (Herbert?)
>>
>
> It should be in 2.6.30 in fact. However, this is for outbound
> traffic only since inbound traffic shouldn't have this problem
> of the guest sending faster than the wire.
>

Is there a corresponding qemu change? Or is this a already handled by
the existing code?

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.