On 03/18/2022 09:46 AM, Matthew Wilcox wrote: > On Fri, Mar 18, 2022 at 09:01:32AM +0800, maobibo wrote: >>> Is this a correctness problem, in which case this will need to be >>> backported, or is this a performance problem, in which case can you >>> share some numbers? >> It is only performance issue, and there is no obvious performance >> improvement for general workloads on my hand, but I do not test >> it on microbenchmark. > > ... if there's no performance improvement, why should we apply this > patch? Confused. > It is not obvious from workload view, it actually reduces one tlb miss on platforms without hw page walk.
