Re: [PATCH v6 1/2] memory_hotplug: Free pages as higher order

2019-01-04 Thread Arun Sudhilal
On Fri, Jan 4, 2019 at 2:28 PM Michal Hocko wrote: > > On Fri 04-01-19 10:35:58, Arun KS wrote: > > On 2018-11-07 11:51, Arun KS wrote: > > > On 2018-11-07 01:38, Michal Hocko wrote: > > > > On Tue 06-11-18 21:01:29, Arun KS wrote: > > > > > On 2018-11-06 19:36, Michal Hocko wrote: > > > > > > On

Re: [PATCH v6 1/2] memory_hotplug: Free pages as higher order

2019-01-04 Thread Michal Hocko
On Fri 04-01-19 10:35:58, Arun KS wrote: > On 2018-11-07 11:51, Arun KS wrote: > > On 2018-11-07 01:38, Michal Hocko wrote: > > > On Tue 06-11-18 21:01:29, Arun KS wrote: > > > > On 2018-11-06 19:36, Michal Hocko wrote: > > > > > On Tue 06-11-18 11:33:13, Arun KS wrote: > > > > > > When free pages

Re: [PATCH v6 1/2] memory_hotplug: Free pages as higher order

2019-01-03 Thread Arun KS
On 2018-11-07 11:51, Arun KS wrote: On 2018-11-07 01:38, Michal Hocko wrote: On Tue 06-11-18 21:01:29, Arun KS wrote: On 2018-11-06 19:36, Michal Hocko wrote: > On Tue 06-11-18 11:33:13, Arun KS wrote: > > When free pages are done with higher order, time spend on > > coalescing pages by buddy a

Re: [PATCH v6 1/2] memory_hotplug: Free pages as higher order

2018-11-06 Thread Arun KS
On 2018-11-07 01:38, Michal Hocko wrote: On Tue 06-11-18 21:01:29, Arun KS wrote: On 2018-11-06 19:36, Michal Hocko wrote: > On Tue 06-11-18 11:33:13, Arun KS wrote: > > When free pages are done with higher order, time spend on > > coalescing pages by buddy allocator can be reduced. With > > sec

Re: [PATCH v6 1/2] memory_hotplug: Free pages as higher order

2018-11-06 Thread Michal Hocko
On Tue 06-11-18 21:01:29, Arun KS wrote: > On 2018-11-06 19:36, Michal Hocko wrote: > > On Tue 06-11-18 11:33:13, Arun KS wrote: > > > When free pages are done with higher order, time spend on > > > coalescing pages by buddy allocator can be reduced. With > > > section size of 256MB, hot add latenc

Re: [PATCH v6 1/2] memory_hotplug: Free pages as higher order

2018-11-06 Thread Arun KS
On 2018-11-06 19:36, Michal Hocko wrote: On Tue 06-11-18 11:33:13, Arun KS wrote: When free pages are done with higher order, time spend on coalescing pages by buddy allocator can be reduced. With section size of 256MB, hot add latency of a single section shows improvement from 50-60 ms to less

Re: [PATCH v6 1/2] memory_hotplug: Free pages as higher order

2018-11-06 Thread Michal Hocko
On Tue 06-11-18 11:33:13, Arun KS wrote: > When free pages are done with higher order, time spend on > coalescing pages by buddy allocator can be reduced. With > section size of 256MB, hot add latency of a single section > shows improvement from 50-60 ms to less than 1 ms, hence > improving the hot

[PATCH v6 1/2] memory_hotplug: Free pages as higher order

2018-11-05 Thread Arun KS
When free pages are done with higher order, time spend on coalescing pages by buddy allocator can be reduced. With section size of 256MB, hot add latency of a single section shows improvement from 50-60 ms to less than 1 ms, hence improving the hot add latency by 60%. Modify external providers of o