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3GB Switch Summary

wfalco
16-Pearl

3GB Switch Summary

3GB Switch Summary
2 REPLIES 2
wfalco
16-Pearl
(To:wfalco)

Here is a good supplement just in:

Adding RAM is completely unrelated to the /3gb boot switch on 32-bit
Windows. Many people incorrectly assume that the /3gb boot switch lets
Windows use the installed RAM more efficiently.

If you’ve never had Pro/E crash because it tried to access more than 2GB
memory, then you don’t need the /3gb boot switch. This switch controls
how much virtual address space each process can address.

Virtual address space and RAM are not the same. A process’ virtual
address space exists both in RAM and on the hard disk (page file). The
Windows memory manager handles swapping memory pages to / from the disk
so that any memory pages required by the CPU are loaded into RAM.

So you can see that using or not using the /3GB switch has no effect on
how Windows uses the installed RAM.


wfalco
16-Pearl
(To:wfalco)

Another:

Another good thing to know is how much memory ProE as an application is
using.
This TPI shows you how to use perfmon to determine exactly how much
memory ProE is using.
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