[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
50% CPU user usage but top doesn't list any CPU unfriendly task
- From: jerome lacoste <jerome.lacoste@xxxxxxxxx>
- Date: Mon, 3 Jan 2005 22:46:40 +0100
- Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:mime-version:content-type:content-transfer-encoding; b=oh2m1qw+tc7EOOC2GccgLo/fm9VRUDwm6zMvKMzE7/IUj+69c918s1BDYwZrVxdEIfqCifAw6f/RC/jXfi2GujILM1RakKv/gSb/8boLs9njjPN0Cju6sr4fXWVp0NFYz3kqQcmkXYSq3pvUxTyf8i7pWyMzLJVfiFgxP/AEYzg=
Hi,
on a fairly old box used as a desktop (PII 300 Mhz with 196M RAM), I
observe the following strange behavior which I believe comes from the
kernel.
There's a VoIP known 'P2P' closed source application running, an IP
tables based firewall and a remote ssh session initiated. When using
top, sorting by CPU usage, no program is using more than a couple of
percent of CPU. On the other side, the total CPU user time is at
around 40%, with a 1.5 load average. Memory looks OK. The machine is
responsive as usual.
So I wonder why the cpu user time is at 40% without any particular
program showing as using CPU in the top listing. 'Problem' was
reproducible with 2.4.x and now with 2.6.8.1.
So it this a real problem or is there something that I don't
understand in particular? Thanks for the insight.
Jerome
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Follow-Ups: