On Fri, May 27, 2016 at 12:22:19PM +0300, Michael Rapoport wrote: > I've run two guests without any CPU pinning and without any actual > interaction with cgroups > Here's the results (in MBits/sec): > > size | 64 | 256 | 1024 | 4096 | 16384 > -----+-------+---------+---------+---------+--------- > (1) | 496.8 | 1346.31 | 6058.49 | 13736.2 | 13541.4 > (2) | 493.3 | 1604.03 | 5723.68 | 10181.4 | 15572.4 > (3) | 489.7 | 1437.86 | 6251.12 | 12774.2 | 12867.9 > > > From what I see, for different packet sizes there's different approach > that outperforms the others. > Moreover, I'd expect that in case when vhost completely takes over the > worker thread there would no be difference vs. current state. > > Tejun, can you help explaining these results?
Heh, the only thing I can tell is the tests seem noisy and weren't run enough times to draw any conclusion. Even if the numbers were consistent, I don't think anybody would be able to tell a lot from just the results. If the results can be made stable, perf would be a good place to start. Thanks. -- tejun
