Re: [PATCH -V2] NUMA balancing: reduce TLB flush via delaying mapping on hint page fault

Mel Gorman writes: > On Fri, Apr 02, 2021 at 04:27:17PM +0800, Huang Ying wrote: >> With NUMA balancing, in hint page fault handler, the faulting page >> will be migrated to the accessing node if necessary. During the >> migration, TLB will be shot down on all CPUs that the process has run >>

Re: [PATCH -V2] NUMA balancing: reduce TLB flush via delaying mapping on hint page fault

On Fri, Apr 02, 2021 at 04:27:17PM +0800, Huang Ying wrote: > With NUMA balancing, in hint page fault handler, the faulting page > will be migrated to the accessing node if necessary. During the > migration, TLB will be shot down on all CPUs that the process has run > on recently. Because in the

[PATCH -V2] NUMA balancing: reduce TLB flush via delaying mapping on hint page fault

With NUMA balancing, in hint page fault handler, the faulting page will be migrated to the accessing node if necessary. During the migration, TLB will be shot down on all CPUs that the process has run on recently. Because in the hint page fault handler, the PTE will be made accessible before the