[Info-ingres] 4k Cache

[Roy Hann]

Steve wrote:

> Could running trace point DM420 cause a drag on the system 

If it is already absolutely on its knees you might measure the drag but
you won't notice it. Don't worry about it.

> can I leave it running (for days), or should I run it for specific
> periods? 

If you leave it running for days it will fade to grey goo. It's best to
use it just while you are running a job of considerable intensity that
you are hoping to improve. (There's no point getting hung up on what may
or may not be happening in the background. You are looking for profound
improvements because minor improvements will never pay back. If the
improvement is profound it should shine through the noise of background
activity.)

Roy