Re: [PATCH] bdi flusher should not be throttled here when it fall into buddy slow path

From	Michal Hocko <mhocko@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] bdi flusher should not be throttled here when it fall into buddy slow path
Date	2016-10-20 15:30 +0200
Message-ID	<sulzX-84O-23@gated-at.bofh.it> (permalink)
References	<stx0t-70j-1@gated-at.bofh.it> <sukXf-7Cr-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu 20-10-16 20:38:05, zhouxianrong@huawei.com wrote:
> From: z00281421 <z00281421@notesmail.huawei.com>
> 
> The bdi flusher should be throttled only depends on 
> own bdi and is decoupled with others.
> 
> separate PGDAT_WRITEBACK into PGDAT_ANON_WRITEBACK and
> PGDAT_FILE_WRITEBACK avoid scanning anon lru and it is ok 
> then throttled on file WRITEBACK.

Could you please answer questions from
http://lkml.kernel.org/r/20161018114207.GD12092@dhcp22.suse.cz before
coming up with new and even more complex patches please?

I would really like to understand the issue you are seeing before
jumping into patches...

Thanks!
-- 
Michal Hocko
SUSE Labs

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[PATCH] bdi flusher should not be throttled here when it fall into buddy slow path <zhouxianrong@huawei.com> - 2016-10-18 09:30 +0200
  Re: [PATCH] bdi flusher should not be throttled here when it fall into buddy slow path "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-10-18 11:40 +0200
  Re: [PATCH] bdi flusher should not be throttled here when it fall  into buddy slow path Mel Gorman <mgorman@techsingularity.net> - 2016-10-18 12:00 +0200
    Re: [PATCH] bdi flusher should not be throttled here when it fall  into buddy slow path zhouxianrong <zhouxianrong@huawei.com> - 2016-10-18 13:20 +0200
      Re: [PATCH] bdi flusher should not be throttled here when it fall  into buddy slow path Michal Hocko <mhocko@kernel.org> - 2016-10-18 13:50 +0200
  [PATCH] bdi flusher should not be throttled here when it fall into buddy slow path <zhouxianrong@huawei.com> - 2016-10-20 14:50 +0200
    Re: [PATCH] bdi flusher should not be throttled here when it fall  into buddy slow path Michal Hocko <mhocko@kernel.org> - 2016-10-20 15:30 +0200

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