Re: [Bug 204165] New: 100% CPU usage in compact_zone_order

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To: howaboutsynergy@xxxxxxxxxxxxxx
Subject: Re: [Bug 204165] New: 100% CPU usage in compact_zone_order
From: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 16 Jul 2019 11:03:47 +0100
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "bugzilla-daemon@xxxxxxxxxxxxxxxxxxx" <bugzilla-daemon@xxxxxxxxxxxxxxxxxxx>, "linux-mm@xxxxxxxxx" <linux-mm@xxxxxxxxx>
In-reply-to: <EDGpMqBME0-wqL8JuVQeCbXEy1lZkvqS0XMvMj6Z_OFhzyK5J6qXWAgNUCxrcgVLmZVlqMH-eRJrqOCxb1pct39mDyFMcWhIw1ZUTAVXr2o=@protonmail.com>
References: <bug-204165-27@https.bugzilla.kernel.org/> <20190715142524.e0df173a9d7f81a384abf28f@linux-foundation.org> <pLm2kTLklcV9AmHLFjB1oi04nZf9UTLlvnvQZoq44_ouTn3LhqcDD8Vi7xjr9qaTbrHfY5rKdwD6yVr43YCycpzm7MDLcbTcrYmGA4O0weU=@protonmail.com> <GX2mE2MIJ0H5o4mejfgRsT-Ng_bb19MXio4XzPWFjRzVb4cNpvDC1JXNqtX3k44MpbKg4IEg3amOh5V2Qt0AfMev1FZJoAWNh_CdfYIqxJ0=@protonmail.com> <WGYVD8PH-EVhj8iJluAiR5TqOinKtx6BbqdNr2RjFO6kOM_FP2UaLy4-1mXhlpt50wEWAfLFyYTa4p6Ie1xBOuCdguPmrLOW1wJEzxDhcuU=@protonmail.com> <EDGpMqBME0-wqL8JuVQeCbXEy1lZkvqS0XMvMj6Z_OFhzyK5J6qXWAgNUCxrcgVLmZVlqMH-eRJrqOCxb1pct39mDyFMcWhIw1ZUTAVXr2o=@protonmail.com>
User-agent: Mutt/1.10.1 (2018-07-13)

I tried reproducing this but after 300 attempts with various parameters
and adding other workloads in the background, I was unable to reproduce
the problem.

-- 
Mel Gorman
SUSE Labs

References:
- Re: [Bug 204165] New: 100% CPU usage in compact_zone_order
  - From: Andrew Morton
- Re: [Bug 204165] New: 100% CPU usage in compact_zone_order
  - From: howaboutsynergy
- Re: [Bug 204165] New: 100% CPU usage in compact_zone_order
  - From: howaboutsynergy
- Re: [Bug 204165] New: 100% CPU usage in compact_zone_order
  - From: howaboutsynergy
- Re: [Bug 204165] New: 100% CPU usage in compact_zone_order
  - From: howaboutsynergy

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