Highmem on PPC?
Mark A. Greer
mgreer at mvista.com
Fri Feb 8 08:53:19 EST 2002
Val Henson wrote:
> Also, I don't think this was a particularly good test of highmem since
> I don't think many bounce buffers were used, or that the kernel had
> much reason to map/unmap many highmem pages. Unfortunately, my SCSI
> controller isn't working quite right and I can't test with a hard disk
> as a result. Any ideas for stressing the system harder?
You could try lowering max_low_mem. You can do this by setting "Code
maturity level option"/"Prompt for advanced kernel configuration options"
and then going under where you selected HIGH_MEM and setting max_low_mem
size to something small.
It will likely take some trial and error to get it stressed enough.
You'll have to start a bunch or processes and look at where they're
getting their memory
I'd be interested in hearing how it goes.
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