Herbert Xu wrote:
On Thu, Apr 02, 2009 at 07:54:21PM +0300, Avi Kivity wrote:
3ms latency for ping?
(ping will always be scheduled immediately when the reply arrives if I
understand cfs, so guest load won't delay it)
That only happens if the guest immediately does some CPU-intensive
computation 3ms and assuming its timeslice lasts that long.
Note that this happens even if the computation is SCHED_BATCH.
In any case, the same thing will happen right now if the host or
some other guest on the same CPU hogs the CPU for 3ms.
If the host is overloaded, that's fair. But millisecond latencies
without host contention is not a good result.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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