Re: NOAGE on hpux

From: "Craig A. Sharp" <csharp2a@earthlink.net> > >I am the Unix Administrator for my company. We currently run an >Informix database server on an HP9000 system running hpux 10.2. >I have been asked to install the patch that provides the NOAGE parameter >for Informix. > >Currently, the system is severely processor bound with run queues as >high as 5.0 with an average of 3.0 during a normal day. >We are also experiencing memory pressure and IO bottlenecks. We do know >that the system is severely undersized. > >My understanding is that the NOAGE parameter is supposed to prevent >processes like oninit from loosing priority due to standard system >priority aging. The thought is that the NOAGE parameter may >significantly increase the system performance. > >HP has suggested that the patch is a dangerous patch to install and runs >the risk of crashing the system and requiring a full reload of the OS. >The patch is a large patch and is said to replace many libraries on the >system. > >I am looking for information on what level of performance increase is >gained by setting the NOAGE parameter. Is there a significant increase >in processing speed or throughput when this parameter is used. Please >provide real world examples if possible. > >My final objective is to evaluate the gains in performance vs. patch >risk factors when implementing the parameter on an HA system. You'd be better off shipping us your onconfig file, output from onstat -d, onstat -g iov, onstat -g iof, onstat -p, onstat -D and onstat -P | tail -5 ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com