25/10/2017 10:54, Li, Xiaoyun: > > > > > > I think we should focus on micro-benchmark and find a > > > > > > reasonnable threshold for a reasonnable drop tradeoff. > > > > > > > > > > > Sadly, it may not be that simple. What shows best performance for > > > > > micro- benchmarks may not show the same effect in a real application. > > > > > > > > > > /Bruce > > > > > > > > Then how to measure the performance? > > > > > > > > And I cannot reproduce 15% drop on mellanox. > > > > Could the person who tested 15% drop help to do test again with 1024 > > > > threshold and see if there is any improvement? > > > > > > As Bruce said, best performance on micro-benchmark may not show the > > same effect in real applications. > > > And I cannot reproduce the 15% drop. > > > And I don't know if raising the threshold can improve the perf or not. > > > Could the person who tested 15% drop help to do test again with 1024 > > threshold and see if there is any improvement? > > > > As I already asked before - why not to make that threshold dynamic? > > Konstantin > > > I want to confirm that raising threshold is useful. Then can make it dynamic > and set it very large as default.
You can confirm it with micro-benchmarks.
