From: Alexey Avramov <hakavlad@inbox.lv>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>, Vlastimil Babka <vbabka@suse.cz>,
Rik van Riel <riel@surriel.com>, Mike Galbraith <efault@gmx.de>,
Darrick Wong <djwong@kernel.org>,
regressions@lists.linux.dev,
Linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/1] mm: vmscan: Reduce throttling due to a failure to make progress
Date: Thu, 2 Dec 2021 20:42:29 +0900 [thread overview]
Message-ID: <20211202204229.5ed83f31@mail.inbox.lv> (raw)
In-Reply-To: <20211201140005.GU3366@techsingularity.net>
I tested this [1] patch on top of 5.16-rc2, the same tests.
- with noswap:
2021-12-02 19:41:19,279: Stall times for the last 146.5s:
2021-12-02 19:41:19,279: -----------
2021-12-02 19:41:19,279: some cpu 1.1s, avg 0.8%
2021-12-02 19:41:19,279: -----------
2021-12-02 19:41:19,279: some io 116.2s, avg 79.3%
2021-12-02 19:41:19,280: full io 109.6s, avg 74.8%
2021-12-02 19:41:19,280: -----------
2021-12-02 19:41:19,280: some memory 3.9s, avg 2.6%
2021-12-02 19:41:19,280: full memory 3.8s, avg 2.6%
Excellent!
psi log:
https://raw.githubusercontent.com/hakavlad/cache-tests/main/516-reclaim-throttle/516-rc2/patch6/noswap/psi
mem log:
https://raw.githubusercontent.com/hakavlad/cache-tests/main/516-reclaim-throttle/516-rc2/patch6/noswap/mem
- with swappiness=0
2021-12-02 19:46:04,860: Stall times for the last 144.5s:
2021-12-02 19:46:04,860: -----------
2021-12-02 19:46:04,860: some cpu 1.1s, avg 0.8%
2021-12-02 19:46:04,860: -----------
2021-12-02 19:46:04,860: some io 106.9s, avg 74.0%
2021-12-02 19:46:04,861: full io 101.3s, avg 70.1%
2021-12-02 19:46:04,861: -----------
2021-12-02 19:46:04,861: some memory 99.6s, avg 68.9%
2021-12-02 19:46:04,861: full memory 95.6s, avg 66.2%
PSI mem pressure was high, but there were no long stalls.
psi log:
https://raw.githubusercontent.com/hakavlad/cache-tests/main/516-reclaim-throttle/516-rc2/patch6/swappiness0/psi
mem log:
https://raw.githubusercontent.com/hakavlad/cache-tests/main/516-reclaim-throttle/516-rc2/patch6/swappiness0/mem
[1] https://lore.kernel.org/all/20211201140005.GU3366@techsingularity.net/
next prev parent reply other threads:[~2021-12-02 11:42 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-25 15:18 [PATCH 1/1] mm: vmscan: Reduce throttling due to a failure to make progress Mel Gorman
2021-11-26 10:14 ` Vlastimil Babka
2021-11-26 10:26 ` Mike Galbraith
2021-11-26 16:12 ` Alexey Avramov
2021-11-26 16:52 ` Mel Gorman
2021-11-27 19:26 ` Alexey Avramov
2021-11-28 10:00 ` Mike Galbraith
2021-11-28 11:39 ` Mike Galbraith
2021-11-28 12:35 ` Mike Galbraith
2021-11-28 18:38 ` Mike Galbraith
2021-11-28 11:58 ` Alexey Avramov
2021-11-29 8:26 ` Mel Gorman
2021-11-29 15:01 ` Mel Gorman
2021-11-30 10:14 ` Mike Galbraith
2021-11-30 11:22 ` Mel Gorman
2021-11-30 12:00 ` Mike Galbraith
2021-11-30 12:51 ` Mike Galbraith
2021-11-30 13:09 ` Mel Gorman
2021-12-01 4:32 ` Mike Galbraith
2021-11-30 16:03 ` Alexey Avramov
2021-11-30 17:27 ` Mel Gorman
2021-11-30 17:59 ` Mike Galbraith
2021-12-01 13:01 ` Mel Gorman
2021-12-01 13:52 ` Mike Galbraith
2021-12-01 15:06 ` Mel Gorman
2021-11-30 18:38 ` Alexey Avramov
2021-12-01 14:00 ` Mel Gorman
2021-12-01 17:29 ` Darrick J. Wong
2021-12-02 9:43 ` Mel Gorman
2021-12-02 16:09 ` Darrick J. Wong
2021-12-02 3:11 ` Mike Galbraith
2021-12-02 10:13 ` Mel Gorman
2021-12-02 10:51 ` Mike Galbraith
2021-12-02 11:42 ` Alexey Avramov [this message]
2021-12-02 12:14 ` Alexey Avramov
2021-12-02 12:15 ` Mel Gorman
2021-12-02 12:22 ` Alexey Avramov
2021-12-02 13:18 Mel Gorman
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