Excerpts from David Rientjes's message of April 14, 2020 10:27 am: > On Mon, 13 Apr 2020, Nicholas Piggin wrote: > >> We can get a significant win with larger mappings for some of the big >> global hashes. >> >> Since RFC, relevant architectures have added p?d_leaf accessors so no >> real arch changes required, and I changed it not to allocate huge >> mappings for modules and a bunch of other fixes. >> > > Hi Nicholas, > > Any performance numbers to share besides the git diff in the last patch in > the series? I'm wondering if anything from mmtests or lkp-tests makes > sense to try? Hey, no I don't have any other tests I've run. Some of the networking hashes do make use of it as well though, and might see a few % in the right kind of workload. There's probably a bunch of other stuff where it could help a little bit, looking through the tree, I just don't have anything specific. Thanks, Nick
