From: Andi Kleen <andi@firstfloor.org>
To: "Jeffrey W. Baker" <jwbaker@acm.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: huge improvement with per-device dirty throttling
Date: 22 Aug 2007 13:05:13 +0200 [thread overview]
Message-ID: <p733aybzv6e.fsf@bingen.suse.de> (raw)
In-Reply-To: <1187764638.6869.17.camel@hannibal>
"Jeffrey W. Baker" <jwbaker@acm.org> writes:
>
> My system is a Core 2 Duo, 2GB, single SATA disk.
Hmm, I thought the patch was only supposed to make a real difference
if you have multiple devices? But you only got a single disk.
At least that was the case it was supposed to fix: starvation of fast
devices from slow devices.
Ok perhaps the new adaptive dirty limits helps your single disk
a lot too. But your improvements seem to be more "collateral damage" @)
But if that was true it might be enough to just change the dirty limits
to get the same effect on your system. You might want to play with
/proc/sys/vm/dirty_*
-Andi
--
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>
next prev parent reply other threads:[~2007-08-22 11:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-22 6:37 Jeffrey W. Baker
2007-08-22 11:05 ` Andi Kleen [this message]
2007-08-22 11:09 ` Paolo Ornati
2007-08-22 12:47 ` Andrea Arcangeli
2007-09-04 9:37 ` Leroy van Logchem
2007-09-04 19:23 ` Martin Knoblauch
2007-09-06 9:50 ` Martin Knoblauch
2007-09-05 8:54 ` Martin Knoblauch
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=p733aybzv6e.fsf@bingen.suse.de \
--to=andi@firstfloor.org \
--cc=jwbaker@acm.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/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