On Wed, 3 Apr 2024 16:37:58 +0800 Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> wrote: > After VMA lock-based page fault handling enabled, if bad access met > under per-vma lock, it will fallback to mmap_lock-based handling, > so it leads to unnessary mmap lock and vma find again. A test from > lmbench shows 34% improve after this changes on arm64, > > lat_sig -P 1 prot lat_sig 0.29194 -> 0.19198 > > Only build test on other archs except arm64. Thanks. So we now want a bunch of architectures to runtime test this. Do we have a selftest in place which will adequately do this?
