在 2020/7/16 下午10:11, Alexander Duyck 写道: >> Thanks for Testing support from Intel 0day and Rong Chen, Fengguang Wu, >> and Yun Wang. Hugh Dickins also shared his kbuild-swap case. Thanks! > Hi Alex, > > I think I am seeing a regression with this patch set when I run the > will-it-scale/page_fault3 test. Specifically the processes result is > dropping from 56371083 to 43127382 when I apply these patches. > > I haven't had a chance to bisect and figure out what is causing it, > and wanted to let you know in case you are aware of anything specific > that may be causing this. Thanks a lot for the info! Actually, the patch 17th, and patch 13th may changed performance a little, like the 17th, intel LKP found vm-scalability.throughput 68.0% improvement, and stress-ng.remap.ops_per_sec -76.3% regression, or stress-ng.memfd.ops_per_sec +23.2%. etc. This kind performance interference is known and acceptable. Thanks Alex
