From: Rik van Riel <riel@redhat.com>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: Marcelo Tosatti <marcelo.tosatti@cyclades.com>,
akpm@osdl.org, Peter Zijlstra <peter@programming.kicks-ass.net>,
linux-mm@kvack.org
Subject: Re: use-once-cleanup testing
Date: Mon, 16 Jan 2006 08:05:39 -0500 (EST) [thread overview]
Message-ID: <Pine.LNX.4.63.0601160803550.10902@cuia.boston.redhat.com> (raw)
In-Reply-To: <43C883AA.30101@cyberone.com.au>
On Sat, 14 Jan 2006, Nick Piggin wrote:
> Yes, I found that also doing use-once on mapped pages caused fairly huge
> slowdowns in some cases. File IO could much more easily cause X and its
> applications to get swapped out.
We can get rid of that effect easily by adding reclaim_mapped
logic to the inactive list scan. The zone previous_priority
will keep track of what to do when we start a scan...
> Possibly. I think moving unmapped use-once over to PG_useonce first, and
> tidying the weird warts and special cases (that don't make sense) from
> vmscan is a good first step.
Agreed, cleaning up the code first will make it a lot easier
to make improvements bit by bit.
--
All Rights Reversed
--
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/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
prev parent reply other threads:[~2006-01-16 13:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-14 0:05 Marcelo Tosatti
2006-01-14 4:52 ` Nick Piggin
2006-01-14 4:53 ` Marcelo Tosatti
2006-01-14 8:44 ` Peter Zijlstra
2006-01-14 8:51 ` Andrew Morton
2006-01-16 13:06 ` Rik van Riel
2006-01-16 13:05 ` Rik van Riel [this message]
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=Pine.LNX.4.63.0601160803550.10902@cuia.boston.redhat.com \
--to=riel@redhat.com \
--cc=akpm@osdl.org \
--cc=linux-mm@kvack.org \
--cc=marcelo.tosatti@cyclades.com \
--cc=peter@programming.kicks-ass.net \
--cc=piggin@cyberone.com.au \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox