Re: Bug? Load avg 2.0 when idle.

From: Christian Borntraeger
Date: Sun Oct 24 2004 - 13:49:32 EST


Joerg Sommrey wrote:
> there is a load average of 2.0+ even if the box is almost idle. (i.e.
> "top" shows just one running process: top itself.) Starting two
> cpu-intensive processes raises the load average to 4.0+. How can I
> determine the source for the high load, or is this a bug?
> I'm running 2.6.9 on a dual-athlon box.

Besides other possibilities, a bug in the kernel could be the cause.
Please check if any process (one or two) is in uninterruptible sleep.
(using ps axl the state is D)
Furthermore, Magic SysRequest+T (alt-print-t) and the dmesg output could
give some hints.
If there is nothing suspicious you might try some profiling tool, e.g.
OProfile.

There was another bug report about a wrap around load average. I dont know
if both reports are related.

cheers

Christian

-
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/