From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Jiri Slaby <jirislaby@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
minchan@kernel.org, ngupta@vflare.org, Jan Kara <jack@suse.com>,
Ted Ts'o <tytso@mit.edu>,
Andreas Dilger <adilger.kernel@dilger.ca>,
Ext4 Developers List <linux-ext4@vger.kernel.org>,
avromanov@sberdevices.ru, ddrokosov@sberdevices.ru
Subject: Re: ext2/zram issue [was: Linux 5.19]
Date: Tue, 9 Aug 2022 21:57:50 +0900 [thread overview]
Message-ID: <YvJZztvKtedJfeK5@google.com> (raw)
In-Reply-To: <b2662600-07cd-7125-d7c3-b7bbe1bad824@kernel.org>
On (22/08/09 14:45), Jiri Slaby wrote:
> On 09. 08. 22, 14:35, Jiri Slaby wrote:
> > But the installer is different. It just creates memory pressure, yet,
> > reclaim works well and is able to find memory and go on. I would say
> > atomic vs non-atomic retry in the original (pre-5.19) approach makes the
> > difference.
>
> Sorry, I meant no-direct-reclaim (5.19) vs direct-reclaim (pre-5.19).
Sure, I understood.
This somehow makes me scratch my head and ask if we really want to
continue using per-CPU steams. We previously (many years ago) had
a list of idle compression streams, which would do compression in
preemptible context and we would have only one zs_malloc handle
allocation path, which would do direct reclaim (when needed)
next prev parent reply other threads:[~2022-08-09 12:58 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-31 21:43 Linux 5.19 Linus Torvalds
2022-08-01 12:47 ` Build regressions/improvements in v5.19 Geert Uytterhoeven
2022-08-02 9:14 ` Geert Uytterhoeven
2022-08-01 16:52 ` Linux 5.19 Tony Luck
2022-08-01 16:59 ` Linus Torvalds
2022-08-05 17:00 ` Please consider Linux 5.20 because it means "I love Linux" in Chinese (Re: Linux 5.19) Zhang Boyang
2022-08-07 17:21 ` David Laight
2022-08-09 6:03 ` ext2/zram issue [was: Linux 5.19] Jiri Slaby
2022-08-09 7:59 ` Jiri Slaby
2022-08-09 8:12 ` Jiri Slaby
2022-08-09 8:43 ` Sergey Senozhatsky
2022-08-09 9:11 ` Sergey Senozhatsky
2022-08-09 9:20 ` Sergey Senozhatsky
2022-08-09 10:20 ` Dmitry Rokosov
2022-08-09 11:53 ` Sergey Senozhatsky
2022-08-09 13:15 ` Aleksey Romanov
2022-08-09 13:29 ` Sergey Senozhatsky
2022-08-10 7:06 ` [PATCH] Revert "zram: remove double compression logic" Jiri Slaby
2022-08-10 7:14 ` Sergey Senozhatsky
2022-08-09 12:35 ` ext2/zram issue [was: Linux 5.19] Jiri Slaby
2022-08-09 12:45 ` Jiri Slaby
2022-08-09 12:57 ` Sergey Senozhatsky [this message]
2022-08-09 13:07 ` Sergey Senozhatsky
2022-08-09 9:12 ` Lukas Czerner
2022-08-09 9:15 ` Sergey Senozhatsky
2022-08-09 9:53 ` Lukas Czerner
[not found] ` <20220830214626.26544-1-charlie39@cock.li>
2022-08-31 7:55 ` Jiri Slaby
2022-08-11 14:02 ` [RESEND] Please consider name next Linux release "I love Linux" (Re: Linux 5.19) Zhang Boyang
2022-08-12 2:39 ` Baoquan He
2022-08-12 3:28 ` Huacai Chen
2022-08-12 6:31 ` Gao Xiang
2022-08-12 8:22 ` YanTeng Si
2022-08-13 17:17 ` Zhang Boyang
2022-08-14 15:22 ` WANG Xuerui
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