Re: [PATCH] mm: optimize find_zone_movable_pfns_for_nodes to avoid unnecessary loop.

From	zhong jiang <zhongjiang@huawei.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] mm: optimize find_zone_movable_pfns_for_nodes to avoid unnecessary loop.
Date	2016-08-10 04:40 +0200
Message-ID	<s4rB0-7Dj-3@gated-at.bofh.it> (permalink)
References	<s2NZ0-7N-11@gated-at.bofh.it> <s4oD8-5EB-31@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 2016/8/10 7:29, Andrew Morton wrote:
> On Fri, 5 Aug 2016 22:04:07 +0800 zhongjiang <zhongjiang@huawei.com> wrote:
>
>> when required_kernelcore decrease to zero, we should exit the loop in time.
>> because It will waste time to scan the remainder node.
> The patch is rather ugly and it only affects __init code, so the only
> benefit will be to boot time.
   yes
> Do we have any timing measurements which would justify changing this code?
  I am sorry for that.  That is a only theoretical analysis.
>

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[PATCH] mm: optimize find_zone_movable_pfns_for_nodes to avoid unnecessary loop. zhongjiang <zhongjiang@huawei.com> - 2016-08-05 16:10 +0200
  Re: [PATCH] mm: optimize find_zone_movable_pfns_for_nodes to avoid  unnecessary loop. zhong jiang <zhongjiang@huawei.com> - 2016-08-09 14:30 +0200
  Re: [PATCH] mm: optimize find_zone_movable_pfns_for_nodes to avoid  unnecessary loop. Andrew Morton <akpm@linux-foundation.org> - 2016-08-10 01:30 +0200
    Re: [PATCH] mm: optimize find_zone_movable_pfns_for_nodes to avoid  unnecessary loop. zhong jiang <zhongjiang@huawei.com> - 2016-08-10 04:40 +0200

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