From: Allan Schaffer (allan++at++sgi.com)
Date: 06/09/2000 12:22:17
On Jun 9, 11:00am, Johnson, Erik wrote:
>
> I heard a rumor that the Performer Shared Arena must reside inside of
> main memory and not go into virtual memory. If thats true and my
> machine has 2GB main memory, then the Shared Arena must fit within
> 0x00000000 and 0x80000000.
Not true - the entire shared memory region must be contiguous but it
can use a combination of physical+virtual memory.
As an aside, there are a few environment variables you can use to
view/modify shared arena creation:
setenv PFNFYLEVEL 6 <-- set notification level to DEBUG and you'll
see a lot more status output
setenv PFTMPDIR /usr/tmp <-- use a mmap'd file in /usr/tmp for the
arena instead of the default /dev/zero
setenv PFSHAREDSIZE %d <-- set desired memory arena size (256MB default)
setenv PFSEMASIZE %d <-- set desired semaphore arena size (128kb default)
setenv PFSHAREDBASE 0x%p <-- set location of arena base address
Allan
-- Allan Schaffer allan++at++sgi.com Silicon Graphics http://reality.sgi.com/allan
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