From: Yu Zhao <yuzhao@google.com>
To: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Minchan Kim <minchan@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Yosry Ahmed <yosryahmed@google.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCHv4 0/4] zsmalloc: fine-grained fullness and new compaction algorithm
Date: Sun, 16 Apr 2023 20:55:19 -0600 [thread overview]
Message-ID: <CAOUHufYJtB0n314GnMH1ByXL5PTtzzsrMvi2YbHz2YVqTTcYfA@mail.gmail.com> (raw)
In-Reply-To: <20230417024446.GL25053@google.com>
On Sun, Apr 16, 2023 at 8:44 PM Sergey Senozhatsky
<senozhatsky@chromium.org> wrote:
>
> On (23/04/16 13:27), Yu Zhao wrote:
> > > Hi,
> > >
> > > Did you bisect it down to this series?
> >
> > Not exactly -- since this series was the only suspect I had, I cherry
> > picked it to v6.3-rc6 and verified it is the culprit.
>
> Can't reproduce it yet. One of the theories is that get_fullness_group()
> maybe returns an invalid index, but I don't immediately see how would it
> do so.
>
> Is the problem reproducible?
Whenever swapping *multithreaded* heavily.
> Do you run some specific test?
E.g.,
tools/testing/selftests/kvm/max_guest_memory_test -c 112 -m 800 -s 800
with 112 CPUs and ~770GB DRAM + 32GB zram.
next prev parent reply other threads:[~2023-04-17 2:56 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-04 3:48 [PATCHv4 0/4] zsmalloc: fine-grained fullness and new compaction algorithm Sergey Senozhatsky
2023-03-04 3:48 ` [PATCHv4 1/4] zsmalloc: remove insert_zspage() ->inuse optimization Sergey Senozhatsky
2023-03-04 3:48 ` [PATCHv4 2/4] zsmalloc: fine-grained inuse ratio based fullness grouping Sergey Senozhatsky
2023-03-04 3:48 ` [PATCHv4 3/4] zsmalloc: rework compaction algorithm Sergey Senozhatsky
2023-04-17 5:01 ` [PATCH] zsmalloc: reset compaction source zspage pointer after putback_zspage() Sergey Senozhatsky
2023-04-17 5:11 ` Yu Zhao
2023-04-17 11:43 ` Yosry Ahmed
2023-04-17 13:07 ` Sergey Senozhatsky
2023-04-17 13:08 ` Sergey Senozhatsky
2023-03-04 3:48 ` [PATCHv4 4/4] zsmalloc: show per fullness group class stats Sergey Senozhatsky
2023-03-10 21:10 ` [PATCHv4 0/4] zsmalloc: fine-grained fullness and new compaction algorithm Minchan Kim
2023-03-11 8:30 ` Sergey Senozhatsky
2023-04-16 7:20 ` Yu Zhao
2023-04-16 15:18 ` Sergey Senozhatsky
2023-04-16 19:27 ` Yu Zhao
2023-04-17 2:44 ` Sergey Senozhatsky
2023-04-17 2:55 ` Yu Zhao [this message]
2023-04-17 3:52 ` Sergey Senozhatsky
2023-04-17 8:29 ` Yosry Ahmed
2023-04-17 11:12 ` Sergey Senozhatsky
2023-04-17 11:16 ` Yosry Ahmed
2023-04-17 11:24 ` Sergey Senozhatsky
2023-04-17 11:31 ` Yosry Ahmed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAOUHufYJtB0n314GnMH1ByXL5PTtzzsrMvi2YbHz2YVqTTcYfA@mail.gmail.com \
--to=yuzhao@google.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=minchan@kernel.org \
--cc=senozhatsky@chromium.org \
--cc=yosryahmed@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.