Hi Mike,
There are lots of papers/documents on the web describing how Solaris uses
memory and tools to monitor usage. One place to start is:
http://www.unixinsider.com/unixinsideronline/swol-03-1998/swol-03-perf.html
The list of references from there should also help.
Hope this helps.
Dave Miller
Sun Microsystems, Inc.
>Date: Wed, 04 Apr 2001 05:51:11 -0800
>To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
>X-Comment: Oracle RDBMS Community Forum
>X-Sender: "Lanteigne, Mike" <[EMAIL PROTECTED]>
>From: "Lanteigne, Mike" <[EMAIL PROTECTED]>
>Subject: Unix memory used
>X-ListServer: v1.0g, build 70; ListGuru (c) 1996-2001 Bruce A. Bergman
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>
> 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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