On Thu, 30 Mar 2017 10:31:08 +0100, Bruce Richardson <bruce.richard...@intel.com> wrote: > On Wed, Mar 29, 2017 at 09:09:23PM +0100, Bruce Richardson wrote: > > On Wed, Mar 29, 2017 at 05:56:29PM +0200, Olivier Matz wrote: > > > Hi, > > > > > > Does anyone have any other comment on this series? > > > Can it be applied? > > > > > > > > > Thanks, > > > Olivier > > > > > > > I assume all driver maintainers have done performance analysis to check > > for regressions. Perhaps they can confirm this is the case. > > > > /Bruce > > > > In the absence, of anyone else reporting performance numbers with this > patchset, I ran a single-thread testpmd test using 2 x 40G ports (i40e) > driver. With RX & TX descriptor ring sizes of 512 or above, I'm seeing a > fairly noticable performance drop. I still need to dig in more, e.g. do > an RFC2544 zero-loss test, and also bisect the patchset to see what > parts may be causing the problem. > > Has anyone else tried any other drivers or systems to see what the perf > impact of this set may be?
I did, of course. I didn't see any noticeable performance drop on ixgbe (4 NICs, one port per NIC, 1 core). I can replay the test with current version. Olivier
