On Fri, Aug 14, 2020 at 12:19 AM Alex Shi <alex....@linux.alibaba.com> wrote: > > > > 在 2020/8/13 下午12:02, Alexander Duyck 写道: > > > > Since we have dropped the late abort case we can drop the code that was > > clearing the LRU flag and calling page_put since the abort case will now > > not be holding a reference to a page. > > > > Signed-off-by: Alexander Duyck <alexander.h.du...@linux.intel.com> > > seems the case-lru-file-mmap-read case drop about 3% on this patch in a rough > testing. > on my 80 core machine.
I'm not sure how it could have that much impact on the performance since the total effect would just be dropping what should be a redundant test since we tested the skip bit before we took the LRU bit, so we shouldn't need to test it again after. I finally got my test setup working last night. I'll have to do some testing in my environment and I can start trying to see what is going on. Thanks. - Alex
