Re: [PATCH v5 1/2] memory_hotplug: Free pages as higher order
From: Michal Hocko
Date: Tue Oct 09 2018 - 05:29:46 EST
On Fri 05-10-18 13:40:05, 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 add latency by 60%. Modify external
> providers of online callback to align with the change.
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Thanks for your patience with all the resubmission.