On Fri, Feb 12, 2016 at 12:32:11PM -0500, Waiman Long wrote: > My own test on a 4-socket E7-4820 v3 system showed a regression of > about 4% in the high_systime workload with Peter's patch which this > new patch effectively eliminates. > > Testing on an 8-socket Westmere-EX server, however, has performance > change from -9% to than +140% on the fserver workload of AIM7 > depending on how the system was set up.
Subject: [lkp] [locking/mutex] aaca135480: -72.9% fsmark.files_per_sec My patch also generated the above email. Please also test that benchmark against this approach.
