[SunHELP] System Bottleneck

[Nicholas Dronen]

On Fri, Sep 21, 2001 at 01:10:23PM -0700, Greg wrote:
> On 09/21/01 08:01 AM, Fletcher, Joe wrote:
> 
> > I'd start by increasing the size of the swap area. Having swap < physical is
> > generally a bad idea unless you are running in lazy mode. 
> 
> Why is it bad?  Assuming you aren't running Solaris 1 then there aren't 
> any resources wasted or performance problems associated with having less 
> swap than physical memory.  Solaris 2 doesn't require that there be 
> _any_ swap let alone any restrictions on the size when it's larger than 
> zero.  If you do have swap (and really use it) then larger swap areas 
> are worse for performance than having multiple smaller swap areas spread 
> across multiple disk spindles.

Not to mention that the advice isn't necessarily appropriate
to the problem, which is and will be unknown until Darshan
(the OP) sends actual vmstat output.

Regards,

Nicholas Dronen