From: Dirk <dirkw@rentec.com>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: lkml <linux-kernel@vger.kernel.org>,
Rik van Riel <riel@conectiva.com.br>,
Mike Galbraith <mikeg@wen-online.de>,
linux-mm@kvack.org, "Stephen C. Tweedie" <sct@redhat.com>
Subject: Re: [PATCH] Separate global/perzone inactive/free shortage
Date: Sat, 14 Jul 2001 16:13:33 -0400 [thread overview]
Message-ID: <3B50A7ED.7A8A1BF0@rentec.com> (raw)
In-Reply-To: <Pine.LNX.4.21.0107140204110.4153-100000@freak.distro.conectiva>
Marcelo Tosatti wrote:
> Hi,
>
> As well known, the VM does not make a distiction between global and
> per-zone shortages when trying to free memory. That means if only a given
> memory zone is under shortage, the kernel will scan pages from all zones.
>
> The following patch (against 2.4.6-ac2), changes the kernel behaviour to
> avoid freeing pages from zones which do not have an inactive and/or
> free shortage.
>
> Now I'm able to run memory hogs allocating 4GB of memory (on 4GB machine)
> without getting real long hangs on my ssh session. (which used to happen
> on stock -ac2 due to exhaustion of DMA pages for networking).
>
> Comments ?
>
> Dirk, Can you please try the patch and tell us if it fixes your problem ?
>
great!! that is definitely better, the machine talks to me again. there are some
small "but"s. however. i write them up and let you know.
~dirkw
WARNING: multiple messages have this Message-ID (diff)
From: Dirk <dirkw@rentec.com>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: lkml <linux-kernel@vger.kernel.org>,
Rik van Riel <riel@conectiva.com.br>,
Mike Galbraith <mikeg@wen-online.de>,
linux-mm@kvack.org, "Stephen C. Tweedie" <sct@redhat.com>
Subject: Re: [PATCH] Separate global/perzone inactive/free shortage
Date: Sat, 14 Jul 2001 16:13:33 -0400 [thread overview]
Message-ID: <3B50A7ED.7A8A1BF0@rentec.com> (raw)
In-Reply-To: Pine.LNX.4.21.0107140204110.4153-100000@freak.distro.conectiva
Marcelo Tosatti wrote:
> Hi,
>
> As well known, the VM does not make a distiction between global and
> per-zone shortages when trying to free memory. That means if only a given
> memory zone is under shortage, the kernel will scan pages from all zones.
>
> The following patch (against 2.4.6-ac2), changes the kernel behaviour to
> avoid freeing pages from zones which do not have an inactive and/or
> free shortage.
>
> Now I'm able to run memory hogs allocating 4GB of memory (on 4GB machine)
> without getting real long hangs on my ssh session. (which used to happen
> on stock -ac2 due to exhaustion of DMA pages for networking).
>
> Comments ?
>
> Dirk, Can you please try the patch and tell us if it fixes your problem ?
>
great!! that is definitely better, the machine talks to me again. there are some
small "but"s. however. i write them up and let you know.
~dirkw
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/
next prev parent reply other threads:[~2001-07-14 20:12 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-14 5:19 [PATCH] Separate global/perzone inactive/free shortage Marcelo Tosatti
2001-07-14 5:19 ` Marcelo Tosatti
2001-07-14 7:11 ` Marcelo Tosatti
2001-07-14 7:11 ` Marcelo Tosatti
2001-07-14 20:13 ` Dirk [this message]
2001-07-14 20:13 ` Dirk
[not found] ` <Pine.LNX.4.33.0107141023440.283-100000@mikeg.weiden.de>
2001-07-16 13:19 ` Stephen C. Tweedie
2001-07-16 15:44 ` Mike Galbraith
2001-07-16 18:30 ` Stephen C. Tweedie
2001-07-17 2:55 ` Mike Galbraith
2001-07-16 18:42 ` Dirk Wetter
2001-07-16 15:51 ` Kanoj Sarcar
2001-07-16 15:51 ` Kanoj Sarcar
2001-07-16 19:00 ` Rik van Riel
2001-07-16 19:00 ` Rik van Riel
2001-07-17 0:27 ` Marcelo Tosatti
2001-07-17 0:27 ` Marcelo Tosatti
2001-07-17 2:07 ` Kanoj Sarcar
2001-07-17 2:07 ` Kanoj Sarcar
2001-07-17 0:01 ` Marcelo Tosatti
2001-07-17 0:01 ` Marcelo Tosatti
-- strict thread matches above, loose matches on Subject: below --
2001-07-16 13:56 Bulent Abali
2001-07-16 15:56 ` Stephen C. Tweedie
2001-07-16 19:04 ` Rik van Riel
2001-07-18 8:54 ` Mike Galbraith
2001-07-18 10:18 ` Stephen C. Tweedie
2001-07-18 14:51 ` Mike Galbraith
2001-07-18 15:07 ` Dave McCracken
2001-07-18 16:09 ` Rik van Riel
2001-07-18 16:09 ` Rik van Riel
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=3B50A7ED.7A8A1BF0@rentec.com \
--to=dirkw@rentec.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=marcelo@conectiva.com.br \
--cc=mikeg@wen-online.de \
--cc=riel@conectiva.com.br \
--cc=sct@redhat.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.