Re: Processor Affinity

David Williams wrote: > > In article <5daceu$sun@cssun.mathcs.emory.edu>, Jon C Vemo > <jvemo@cyberspace.com> writes > >At 08:52 AM 2/5/97 -0500, Steve Romankiw wrote: > > >>Below are setting taken from my onconfig: > >># > >># Our Sun server has four processors > > Sounds like a good contener for processor affintity. I can only speak from advice given by Informix techies, and not practical experience, but the advice is still only look at using affinity for boxes with more than 4 processors. Again, the only way to know for a particular platform is to try it. If the box can't handle it, you will see performance drop over time to a point where the box grinds to a halt. One Informix techy told me he could generally double performance if a 4-processor box was upgraded to a 6-processor box. Something to think about. ;-) > >Proceed with caution though, you can easily shoot yourself in the foot. > >Review carefully > >what your server is running/doing, and CPU utilitization and load. Exactly. Also check out all available patches to the OS, these often have an impact on areas such as affinity. :-) Cheers, -- Mark. +------------------------------------------------------------------+ |Mark D. Stock - The West Solutions Group http://www.west.co.za | | The Informix FAQ is at http://www.iiug.org | |mailto:marks@west.co.za +-----------------------------------------+ |Tel: +27 11 803 2151 |If it doesn't work, force it! | |Fax: +27 11 803 2189 |If it breaks, it needed replacing anyway!| |Cell: +27 83 250 2325 |Well, that's how I code anyway! | +------------------------+-----------------------------------------+