On Mon, 2023-03-06 at 13:12 -0800, Andrew Morton wrote: > On Mon, 6 Mar 2023 17:22:54 +0800 Yin Fengwei > <fengwei.yin@xxxxxxxxx> wrote: > > > This series is trying to bring the batched rmap removing to > > try_to_unmap_one(). It's expected that the batched rmap > > removing bring performance gain than remove rmap per page. > > > > ... > > > > include/linux/rmap.h | 5 + > > mm/page_vma_mapped.c | 30 +++ > > mm/rmap.c | 623 +++++++++++++++++++++++++-------------- > > ---- > > 3 files changed, 398 insertions(+), 260 deletions(-) > > As was discussed in v2's review, if no performance benefit has been > demonstrated, why make this change? OK. Let me check whether there is way to demonstrate the performance gain. Thanks. Regards Yin, Fengwei >
