On Fri 18-05-18 11:03:16, Huang, Ying wrote: [...] > The patch is a generic optimization which should benefit quite some > workloads, not for a specific use case. To demonstrate the performance > benefit of the patch, we tested it with vm-scalability run on > transparent huge page. It is also adds quite some non-intuitive code. So is this worth? Does any _real_ workload benefits from the change? > include/linux/mm.h | 3 ++- > mm/huge_memory.c | 3 ++- > mm/memory.c | 43 +++++++++++++++++++++++++++++++++++++++---- > 3 files changed, 43 insertions(+), 6 deletions(-) -- Michal Hocko SUSE Labs