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Old 10-22-2007, 08:41 AM   #1
wolfperkins
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Registered: Oct 2007
Location: Val-des-Monts, Québec, Canada
Distribution: CentOS, RHEL, Fedora
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Question heavy cpu usage on RHEL


Hi,

I am running RHEL 4 and using as my desktop environment (KDE). This morning it started to behave poorly on CPU usage. I ran top and it displays 80-90% usage on the "%hi" column. Load is around 8-9.

What is the meaning of the %hi column and what locally could account for such usage?

Is this local disk I/O or something else?

Thanks

François
 
Old 10-22-2007, 10:52 AM   #2
brianmcgee
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Registered: Jun 2007
Location: Munich, Germany
Distribution: RHEL, CentOS, Fedora, SLES (...)
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That is highmem.

All memory above the address of 896MB is temporarily mapped into kernel virtual memory everytime the kernel needs to access that memory.
 
  


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