Hi, I have some tentative solutions to the "NUMA balancing prerequisite" for Ryan's "[PATCH v6 0/9] variable-order, large folios for anonymous memory" [1]. However, I need to actually exercise the patches, in order to post anything worth reading, and as usual that is the hard part. After some initial searching around, it's time to simply ask: are there any test suites that will exercise NUMA page faults with THP? I am seeing hints of coverage, but with NUMA and THP separately covered, in the mm selftests. And also stress-ng has some numa coverage. So I was thinking of augmenting the selftests to get coverage (and the pte-mapped THP would be a happier story with this as well), but maybe tests along these lines already exist somewhere? [1] https://lore.kernel.org/all/197819d2-d7fa-47ae-b893-ef2fce25b2be@xxxxxxxxxx/ thanks, -- John Hubbard NVIDIA
