[wellylug] CPU load

[Gordon Paynter]

On Mon, 13 Dec 2004 10:42, andrej at paradise.net.nz wrote:
> Quoting Gordon Paynter <lists at paynter.info>:
> > run top, I can see one process that registers in the %CPU column: it
> > gets
> > 99.9%, even though it is niced down to 10 (i.e. it is low-priority).
>
> How about telling us what that process is?

An application I wrote myself, that is CPU-intensive, and intermittantly 
MySQL-intensive.  I'll try killing it, but I don;t expect it to make a 
difference.

> As for the load average: it's made up of both
> CPU and I/O ... so if you had that box being a
> bridge between two high-speed interfaces that
> may be one thing to investigate, or if the hdd
> was running without dma and MySQL was quite busy ...

It's quite possible there's a DMA issue, and that MySQL is busy.  We've had 
all sorts of trouble with this batch of hardware, including DMA errors on 
some machines. I'll look in to that.

Thanks,
Gordon