On Wed, Jul 29, 2015 at 12:42:12AM +0300, Slawa Olhovchenkov wrote: > On Sat, Jul 25, 2015 at 02:27:50AM +0000, Glen Barber wrote: > > > On Fri, Jul 24, 2015 at 06:36:32PM +0300, Slawa Olhovchenkov wrote: > > > On Fri, Jul 24, 2015 at 08:25:55AM -0700, Navdeep Parhar wrote: > > > > > > > On Fri, Jul 24, 2015 at 10:50:10AM +0300, Slawa Olhovchenkov wrote: > > > > > > > > > > > > > > For me -- degradate network performance, about 30%. I am do > > > > > > > verification now, by downgrading kernel. > > > > > > > > > > > > What kind of workload and what NIC are you using? > > > > > > > > > > Chelsio T580-LP-CR, http serving. > > > > > r276179 can utilise 40Gbit, r281264 -- only 28Gbit. > > > > > > > > Can you please try -RC1 when it comes out and report back if you still > > > > see degraded network performance? > > > > > > Now I am try revisons r276179 and compare with r281264 (for absolutly > > > clean compare -- same hardware, same configuration, same workload) > > > before this I am comare slighty different hardware (card instaled in > > > different slots) and posibly different workload. > > > After this I am try r278800 and RC1 -- one times per day. > > > > > > > Please try with the 10.2-RC1 that was just released, and report back. > > Root of cause is BIOS setting: need ACPI NUMA to OFF. > After this change performance gain about 30%. > Sorry for false alaram. >
Thank you for providing this information. Glen
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