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Date:   Wed, 10 Oct 2018 10:07:24 +0200
From:   Oscar Salvador <osalvador@techadventures.net>
To:     Arun KS <arunks@codeaurora.org>
Cc:     kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com,
        boris.ostrovsky@oracle.com, jgross@suse.com,
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        kirill.shutemov@linux.intel.com, jrdr.linux@gmail.com,
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        aaron.lu@intel.com, devel@linuxdriverproject.org,
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        vinmenon@codeaurora.org, getarunks@gmail.com
Subject: Re: [PATCH v5 1/2] memory_hotplug: Free pages as higher order
Message-ID: <20181010080724.GA20338@techadventures.net>
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On Fri, Oct 05, 2018 at 01:40:05PM +0530, 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.

Hi Arun, out of curiosity:

could you please explain how exactly did you mesure the speed
improvement?

Thanks
-- 
Oscar Salvador
SUSE L3