Many thanks to:
Dave Cherkus
Ray.Bellis
Ross Alexander
My original question:
Can anyone tell me if when upgrading from DU 2.0 to DU 3.2(C or D) there would be a change in the amount of memory being used by the system.
The situation I have is 17 x AXP 150's most of them with 32MB of RAM. They are all running an application written in Universe. The customer wants to upgrade to version 8 of Universe and this requires an upgrade to DU 3.2x.
As all the AXP systems are currently using nearly all of their 32MB of RAM I need to have a clear idea of what will happen to the memory usage when they are upgraded to DU3.2.
I plan to strip out as many Kernel stacks as I can for example I wont need:
ADVFS, CDFS, LAT, MFS.
If anyone has any test data that shows what happen to memory usage when they upgraded to 3.2 I'd greatly appreciate it if they could send a copy.
Also if you have any suggestions on ways to minimize memory usage (without killing performance) that would be great to.
The answers:
Dave Cherkus -----
I know for a fact that a lot of work went into v3.2c to make its
footprint smaller. The work was called the 'osf-lite' project. I
suggest you do a search of the archives of this list to see if you can
find out anything about the osf-lite project. I think someone posted
some hints on how to tune this lite config. Also, search the online
books (the perf guide to start) for small memory / lite systems.
mailto:Ray.Bellis_at_psy.ox.ac.uk
I've no hard figures but DU 3.2C and above are much more memory
efficient than previous versions. We've got loads of 32 Mb machines
here and they became much more usable once I installed 3.2C.
Ross Alexander, ve6pdq -- (403) 675 6311 -- rwa_at_cs.athabascau.ca
Things get much better. The 3.x series systems have much smaller
memory footprints; my 2000/300 pretty much stopped paging, which
was a vast relief ;).
Received on Sun Feb 11 1996 - 23:01:07 NZDT