Anna C. Dent wrote:
> Adolfo wrote:
>
>> We check with top and sar -r
>
>
> You do NOT have a memory leak.
> This is typical behavior for Oracle on Solaris.
> The "lost" memory is being used by Solaris for
> file system buffer cache.
>
Don't know about Solaris 2.6, but on Solaris 8 or 9 you can mount
filesystems with option "forcedirectio".
Do this only for filesystems which contain oracle datafiles only,
nothing else.
This flag avoids the buffering of the oracle datafiles by the os. The
buffering is not needed, because oracle buffers data and index. So you
eliminate one memory transfer which also consumes some time.
Received on Wed Sep 24 2003 - 02:54:15 CDT
