From: Robert Love <rml@tech9.net>
To: Cort Dougan <cort@fsmlabs.com>
Cc: Ville Herva <vherva@niksula.hut.fi>, linux-kernel@vger.kernel.org
Subject: Re: [STATUS 2.5] July 10, 2002
Date: 10 Jul 2002 13:25:38 -0700 [thread overview]
Message-ID: <1026332738.1244.86.camel@sinai> (raw)
In-Reply-To: <20020710142005.U762@host110.fsmlabs.com>
On Wed, 2002-07-10 at 13:20, Cort Dougan wrote:
> Why was the rate incremented to maintain interactive performance? Wasn't
> that the whole idea of the pre-empt work? Does the burden of pre-empt
> actually require this?
I did not say it was increased to improve interactivity response - and
it certainly has little or nothing to do with kernel preemption being
merged.
I suspect a big benefit would be poll/select performance. I think this
is why RedHat increased HZ in their kernels.
You would have to ask Linus exactly what his intentions were.
> It seems that the added inefficiency of these extra interrupts is going to
> drag performance down.
Robert Love
next prev parent reply other threads:[~2002-07-10 20:23 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-10 5:11 [STATUS 2.5] July 10, 2002 Guillaume Boissiere
2002-07-10 15:49 ` Rik van Riel
2002-07-10 16:19 ` Adrian Bunk
2002-07-10 16:31 ` Thunder from the hill
2002-07-10 16:51 ` Roman Zippel
2002-07-10 17:00 ` Thunder from the hill
2002-07-10 16:54 ` Karim Yaghmour
2002-07-10 17:25 ` John Levon
2002-07-10 19:19 ` Karim Yaghmour
2002-07-10 17:17 ` Alan Cox
2002-07-10 20:21 ` Daniel Phillips
2002-07-10 17:12 ` Patrick Mochel
2002-07-10 17:42 ` Arnaldo Carvalho de Melo
2002-07-10 17:54 ` Robert Love
2002-07-10 19:18 ` Ville Herva
2002-07-10 20:03 ` Robert Love
2002-07-10 20:20 ` Cort Dougan
2002-07-10 20:25 ` Robert Love [this message]
2002-07-10 20:41 ` Ville Herva
2002-07-10 21:07 ` Alan Cox
2002-07-10 20:46 ` Robert Love
2002-07-11 9:46 ` Rogier Wolff
2002-07-10 20:26 ` Justin M. Forbes
-- strict thread matches above, loose matches on Subject: below --
2002-07-10 17:46 Perches, Joe
2002-07-10 18:05 ` Thunder from the hill
2002-07-10 18:38 ` Alan Cox
2002-07-10 18:49 ` Kurt Garloff
2002-07-10 19:19 ` Larry Kessler
2002-07-10 21:15 ` Alan Cox
2002-07-11 18:07 ` Anton Blanchard
2002-07-10 21:27 ` Alan Cox
2002-07-10 18:08 Russ Weight
2002-07-11 19:21 Richard J Moore
2002-07-11 20:34 Richard J Moore
2002-07-13 9:28 ` Ingo Oeser
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=1026332738.1244.86.camel@sinai \
--to=rml@tech9.net \
--cc=cort@fsmlabs.com \
--cc=linux-kernel@vger.kernel.org \
--cc=vherva@niksula.hut.fi \
/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