[K12OSN] Load average sky-high but why????????

Dan Young dyoung at mesd.k12.or.us
Mon Aug 28 18:08:14 UTC 2006


dahopkins at comcast.net wrote:
> After the rebuild of my systems here at NCS, the load average is
> hitting 2+ with just a few users (4 or 5).  This is new behavior.
> Using top, firefox seems to take alot of the CPU, as does StarOffice.

Are you swapping? How much swap is "used":
free -m

Some Firefox plugins can use copious CPU time (flash, JRE). Go to the
URL "about:plugins" in Firefox. What's listed?

> Now, the system is also using software RAID 1.  I was leery about
> this but resorted to it because anaconda does not support my RAID
> card, and getting k12ltsp onto the system via other methods was also
> proving to be difficult.

Shouldn't be a problem. Linux MD is pretty fast; RAID1 is fast, no XORs
to compute. In top, are the CPUs mostly in us(user), sys(system),
ni(nice), id(idle), wa(iowait)?

-- 
Dan Young <dyoung at mesd.k12.or.us>
Multnomah ESD - Technology Services
503-257-1562




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