Re: strange problem with LX
* Luke Shulenburger (sluke@bartender.mit.edu) wrote:
> Thanks for the suggestions. I've checked /proc/cpuinfo and it detects my
No problem.
> processor as 533Mhz just as advertised. I'm running a 2.4.2 kernel,
> but have been for quite some time and these problems are much more
> recent than my kernel updates... Top reports the usage as system time,
> and not user time. I'm playing around with vmstat, but am a bit
> unfamiliar. The number that seems to be telling is that whenever I run
> vmstat -n 1. It reports tens of thousands of interrupts per second, and
> system time around 95. I'm at a loss as to what would be causing these
> interrupts. any suggestions?
Hmm, that does sound odd; a couple of things:
1) Does vmstat -n 1 seem to be scrolling at about a line a second? If it is going a lot slower than that then chances are the interrupt count might be false.
2) cat /proc/interrupts;sleep 10;cat /proc/interrupts
should help you see where the interrupts are coming from; you should be
getting about 1024 a second.
For reference here is the first few lines of a vmstat -n 1 of this Alpha LX:
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 0 0 128 18856 6112 129584 0 0 37 17 353 84 43 3 54
0 0 0 128 18856 6112 129584 0 0 0 0 1057 731 11 2 88
1 0 0 128 18856 6112 129584 0 0 0 0 1055 715 12 2 86
What does 'top' show (if anything) as the most active process?
Dave
---------------- Have a happy GNU millennium! ----------------------
/ Dr. David Alan Gilbert | Running GNU/Linux on Alpha,68K| Happy \
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