mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Chris Friesen <cfriesen@nortelnetworks.com>
To: linux-kernel@vger.kernel.org
Subject: kswapd running for 300+ms in 2.4.18?
Date: Thu, 19 Sep 2002 15:22:19 -0400	[thread overview]
Message-ID: <3D8A23EB.D22D971E@nortelnetworks.com> (raw)


We have a box on which we are trying to get some reasonable latencies (ie 10s of ms is fine, 100s is
not).  

We have an application that wants to be scheduled every 50ms or so, and a custom scheduler that
should allow for this.  If it sleeps for more than 300ms it logs the fact and dumps a history of the
last 128 processes scheduled along with timing info.  Based on this, we are seeing kswapd
occasionally running for ~340ms at a time.

Is there an easy fix to reduce this latency, or would it be a nasty intrusive change?

Thanks,

Chris

                 reply	other threads:[~2002-09-19 19:17 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=3D8A23EB.D22D971E@nortelnetworks.com \
    --to=cfriesen@nortelnetworks.com \
    --cc=linux-kernel@vger.kernel.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
Powered by JetHome