From: Andi Kleen <ak@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>, Andi Kleen <ak@suse.de>
Cc: Paul Larson <plars@linuxtestproject.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [LTP] Re: LTP - gettimeofday02 FAIL
Date: Tue, 19 Nov 2002 16:46:34 +0100 [thread overview]
Message-ID: <20021119154634.GA29949@wotan.suse.de> (raw)
In-Reply-To: <1037722343.12086.16.camel@irongate.swansea.linux.org.uk>
On Tue, Nov 19, 2002 at 04:12:23PM +0000, Alan Cox wrote:
> On Tue, 2002-11-19 at 15:10, Andi Kleen wrote:
> > It is because of the HZ=1000. See Jim Houston's mail on the same topic,
> > he analyzed the failure.
> >
> > Basically the current code cannot handle missing ticks properly on SMP and with
> > the new 1ms tick it is much more likely that a timer interrupt gets lost.
>
> Ok so add that to the other existing 2.5 timer handling bugs 8(
2.4 has the same problem, it is just much less likely to hit because of HZ=100
-Andi
next prev parent reply other threads:[~2002-11-19 15:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200211190127.gAJ1RWg11023@linux.local.suse.lists.linux.kernel>
[not found] ` <1037713044.24031.15.camel@plars.suse.lists.linux.kernel>
2002-11-19 14:24 ` [LTP] Re: LTP - gettimeofday02 FAIL Andi Kleen
2002-11-19 15:27 ` Alan Cox
2002-11-19 15:10 ` Andi Kleen
2002-11-19 16:12 ` Alan Cox
2002-11-19 15:46 ` Andi Kleen [this message]
2002-11-19 1:27 Jim Houston
2002-11-19 13:37 ` [LTP] " Paul Larson
2002-11-19 14:02 ` Dave Jones
2002-11-19 14:50 ` Paul Larson
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=20021119154634.GA29949@wotan.suse.de \
--to=ak@suse.de \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=plars@linuxtestproject.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