> Kernel: 2.6.18-4-686
Try upgrading to 2.6.20. I've read about some issues with file handlers with
2.6.18. After upgradiong I reduced iowait% significantly.
> Apache: 2.2.3-4
> MySQL: 5.0.32-Debian_7etch1-log
And did you make any diagnosis about mysql tuning? Like threads cache, queries
cache slow queries etc? I gained a lot by that.
> mpstat:
>
> 12:01:15 CPU %user %nice %sys %iowait %irq %soft %steal
> %idle intr/s
> 12:01:15 all 2,43 0,02 0,51 9,98 0,12 0,01 0,00
> 86,93 283,67
>
> uptime:
>
> 12:01:18 up 25 days, 2:22, 1 user, load average: 2.67, 5.46, 6.00
And how comes that you got high load while 85% idling without any iowaits? Try
observig this with top. It will show both load and CPU's usage same time.
Solt
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