From: Carsten Grohmann <carstengrohmann@gmx.de>
To: Kairui Song <ryncsn@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
bugzilla-daemon@kernel.org, Baoquan He <bhe@redhat.com>,
Nhat Pham <nphamcs@gmail.com>,
Yosry Ahmed <yosryahmed@google.com>,
linux-mm@kvack.org
Subject: Re: [Bug 221055] New: Hibernate image write 10x slower since commit 0ff67f990bd4 ("mm, swap: remove swap slot cache")
Date: Sun, 15 Feb 2026 09:56:25 +0100 [thread overview]
Message-ID: <8b4bdcfa-ce3f-4e23-839f-31367df7c18f@gmx.de> (raw)
In-Reply-To: <f743bc48-b576-471a-b679-28a792822cd7@gmx.de>
12.02.2026 21:37:04 Carsten Grohmann <carstengrohmann@gmx.de>:
> 12.02.2026 20:01:48 Kairui Song <ryncsn@gmail.com>:
>
>> And can anyone help verify this fix? I'll also try some other SSD
>> later
>> maybe that's only reproducible with SSD that have very poor 4K
>> performance.
> I'll try out your patch over the weekend.
I tested your patch with the current HEAD from git.kernel.org. The first
run is with your patch, the second without:
Date: 2026-02-15 08:29:33
Commit: 770aaedb461a (Merge tag 'bootconfig-v7.0' of
git://git.kernel.or)
Kernel: 6.19.0-20260214-153617-09922-g770aaedb461a-dirty
Duration: 35 Sekunden
Result: good
----------------------------------------
Date: 2026-02-15 09:01:25
Commit: 770aaedb461a (Merge tag 'bootconfig-v7.0' of
git://git.kernel.or)
Kernel: 6.19.0-20260215-083120-09922-g770aaedb461a
Duration: 324 Sekunden
Result: bad
With your patch, hibernation is fast again. It solves the problem I
reported.
Thank you very much for taking care of my annoying problem.
Regards,
Carsten
next prev parent reply other threads:[~2026-02-15 8:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-221055-27@https.bugzilla.kernel.org/>
2026-02-06 20:11 ` Andrew Morton
2026-02-10 18:39 ` Kairui Song
2026-02-12 19:01 ` Kairui Song
2026-02-12 20:37 ` Carsten Grohmann
2026-02-13 2:21 ` Kairui Song
2026-02-15 8:56 ` Carsten Grohmann [this message]
2026-02-15 9:25 ` Kairui Song
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