Re: cpu load on new filesystem

Michael Pye wrote:
> We've moved an oracle install to a new server. The server is a V490 and
> identical to the server it was on previously, except now the filesystem
> that contains the oracle datafiles and logs is on vxfs/san, as oppose to
> the previous ufs/scsi array.
>
> The system isn't complaining about io, but the cpu load has doubled,
> prstat shows cpu load constantly around 5, wheres before it would be
> around 2/3.
>
> We can't understand why the cpu load would increase, any thoughts of
> what to check ? We know the vxfs block size is only 1k when the ufs
> block size and oracle block size are 8k, would this make a significant
> difference ?
>
> Cheers
> --
> Michael

SQL> shutdown immediate;

What's the CPU load?

And yes the block sizes could be part of the issue. Why 1K?

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org