Hello list,
We have a Sun e3500 with 4x300 MH processors, 1 GB Ram and OS 2.6.
The server runs 4 small instances ( 7.3.4.5), two PeopleSoft apps and one
more help desk app. As the below shows, or SGA's are very small (same for
all 4 databases):
SVRMGR> show sga
Total System Global Area 6278336 bytes
Fixed Size 39816 bytes
Variable Size 4567352 bytes
Database Buffers 1638400 bytes
Redo Buffers 32768 bytes
I'm looking for some ammunition to make a case to increase the RAM.
Yes, some database response is slow, however before I start tuning,
especially memory sizes, I really think any efforts will be wasted if the
memory is constantly thrashing to disk. I've been given access to top, and
it reports the following:
Memory: 1024M real, 15M free, 198M swap in use, 571M swap free (at
8:30 am on weekday)
I guess I'm asking if I can say with validity that our memory is
presently being used up, and the "198 MB swap in use" is a real number.
Also, our SAs don't monitor memory use, so if anyone has any good tool,
tricks, book references, etc...that I can use to see this kind of thing, I'd
appreciated it.
Thanks,
Mike Lanteigne
The views expressed here are mine and do not reflect the official position
my employer or the organization through which the internet was accessed.
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Author: Lanteigne, Mike
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