Re: [RFC v5 0/2] mm: zap pages with read mmap_sem in munmap for large mapping

2018-07-23 Thread Yang Shi
Hi folks, Any comment on this version? Thanks, Yang On 7/18/18 4:21 PM, Yang Shi wrote: Background: Recently, when we ran some vm scalability tests on machines with large memory, we ran into a couple of mmap_sem scalability issues when unmapping large memory space, please refer to

Re: [RFC v5 0/2] mm: zap pages with read mmap_sem in munmap for large mapping

2018-07-23 Thread Yang Shi
Hi folks, Any comment on this version? Thanks, Yang On 7/18/18 4:21 PM, Yang Shi wrote: Background: Recently, when we ran some vm scalability tests on machines with large memory, we ran into a couple of mmap_sem scalability issues when unmapping large memory space, please refer to

[RFC v5 0/2] mm: zap pages with read mmap_sem in munmap for large mapping

2018-07-18 Thread Yang Shi
Background: Recently, when we ran some vm scalability tests on machines with large memory, we ran into a couple of mmap_sem scalability issues when unmapping large memory space, please refer to https://lkml.org/lkml/2017/12/14/733 and https://lkml.org/lkml/2018/2/20/576. History: Then akpm

[RFC v5 0/2] mm: zap pages with read mmap_sem in munmap for large mapping

2018-07-18 Thread Yang Shi
Background: Recently, when we ran some vm scalability tests on machines with large memory, we ran into a couple of mmap_sem scalability issues when unmapping large memory space, please refer to https://lkml.org/lkml/2017/12/14/733 and https://lkml.org/lkml/2018/2/20/576. History: Then akpm