Re: [PATCH v2 0/5] Fix the incorrect memmep defer init handling and do some cleanup

2020-12-23 Thread Baoquan He
On 12/23/20 at 10:05am, Baoquan He wrote: > On 12/22/20 at 05:46pm, Andrew Morton wrote: > > On Sun, 20 Dec 2020 16:27:49 +0800 Baoquan He wrote: > > > > > VMware reported the performance regression during memmap_init() > > > invocation. > > > And they bisected to commit 73a6e474cb376 ("mm:

Re: [PATCH v2 0/5] Fix the incorrect memmep defer init handling and do some cleanup

2020-12-22 Thread Baoquan He
On 12/22/20 at 05:46pm, Andrew Morton wrote: > On Sun, 20 Dec 2020 16:27:49 +0800 Baoquan He wrote: > > > VMware reported the performance regression during memmap_init() invocation. > > And they bisected to commit 73a6e474cb376 ("mm: memmap_init: iterate over > > memblock regions rather that

Re: [PATCH v2 0/5] Fix the incorrect memmep defer init handling and do some cleanup

2020-12-22 Thread Andrew Morton
On Sun, 20 Dec 2020 16:27:49 +0800 Baoquan He wrote: > VMware reported the performance regression during memmap_init() invocation. > And they bisected to commit 73a6e474cb376 ("mm: memmap_init: iterate over > memblock regions rather that check each PFN") causing it. > >

[PATCH v2 0/5] Fix the incorrect memmep defer init handling and do some cleanup

2020-12-20 Thread Baoquan He
VMware reported the performance regression during memmap_init() invocation. And they bisected to commit 73a6e474cb376 ("mm: memmap_init: iterate over memblock regions rather that check each PFN") causing it.