linux-kernel - Re: [linus:master] [mm] f95bdb700b: stress-ng.ramfs.ops_per

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Message-ID: <d8e0e211-6e2c-6aba-9ffd-84833872f559@leemhuis.info>
Date:   Sun, 18 Jun 2023 12:59:52 +0200
From:   "Linux regression tracking #adding (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     kernel test robot <yujie.liu@...el.com>,
        Qi Zheng <zhengqi.arch@...edance.com>
Cc:     oe-lkp@...ts.linux.dev, lkp@...el.com,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>, Kirill Tkhai <tkhai@...ru>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Christian König <christian.koenig@....com>,
        David Hildenbrand <david@...hat.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Muchun Song <muchun.song@...ux.dev>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Yang Shi <shy828301@...il.com>, linux-mm@...ck.org,
        ying.huang@...el.com, feng.tang@...el.com, fengwei.yin@...el.com,
        Linux kernel regressions list <regressions@...ts.linux.dev>
Subject: Re: [linus:master] [mm] f95bdb700b: stress-ng.ramfs.ops_per_sec
 -88.8% regression

[TLDR: I'm adding this report to the list of tracked Linux kernel
regressions; the text you find below is based on a few templates
paragraphs you might have encountered already in similar form.
See link in footer if these mails annoy you.]

On 23.05.23 03:35, kernel test robot wrote:
> Hello,
> 
> kernel test robot noticed a -88.8% regression of stress-ng.ramfs.ops_per_sec on:
> 
> commit: f95bdb700bc6bb74e1199b1f5f90c613e152cfa7 ("mm: vmscan: make global slab shrink lockless")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

To be sure Linus is aware of the pending revert before releasing -rc7,
let me add this to the list of tracked regressions:

#regzbot ^introduced f95bdb700bc6bb74e1199b1f5f90c613e152cfa7.
#regzbot title mm: problems with the SRCU changeover (two reverts pending)
#regzbot monitor:
https://lore.kernel.org/all/ZH6K0McWBeCjaf16@dread.disaster.area/
#regzbot fix: Revert "mm: vmscan: make global slab shrink lockless"
#regzbot ignore-activity

Side note: "Revert "mm: vmscan: add shrinker_srcu_generation"" (also in
mm-hotfixes-unstable/next) is related. See
https://lore.kernel.org/all/51cbf269-daff-d7b8-653f-7ba388475ab8@linux.dev/

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
That page also explains what to do if mails like this annoy you.