Hi Kam,
The inability to limit the amount of memory available for file system buffers
used to be a problem under earlier versions of Solaris. At 2.6 and above just
make sure that 'priority_paging' is in use and all will be well (in this regard
at least).
@ Regards,
@ Steve Adams
@ http://www.ixora.com.au/
@ http://www.christianity.net.au/
-----Original Message-----
Sent: Tuesday, 20 February 2001 21:20
To: Multiple recipients of list ORACLE-L
Dear List,
We are running Oracle on Solaris 2.6, I am new to Solaris env and wondering
anyone can explain to me on the following:
We have 6G of memory on the Sun E5500 server, when I do a prtmem command, I
notice the size for "File Cache" is about 3.9G big and 100M free space. I was
curious about what is taking up all the space, our Unix admin explained to me
that under Solaris, the OS will grep any free memory as unix buffer and give it
back to process when needed and we can't configure how much memory Solaris keep
as unix buffer. I remember under HP-UX, you can keep a limit on how much memory
the OS can keep under buffer cache. In our case, will such a large pool of
buffer cache has any performance impact, Solaris must spend a lot of time
maintaining this pool and also it probably very expensive to allocate and
deallocate buffer between OS and user processes. Any ideal??
KC
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