RE: IDS 10 erratic run times and slow ontape

That is if the Vendor knows - mine for example did not ...... :-o -----Original Message----- From: owner-informix-list@iiug.org [mailto:owner-informix-list@iiug.org] On Behalf Of scottishpoet Sent: 26 September 2005 05:22 PM To: informix-list@iiug.org Subject: Re: IDS 10 erratic run times and slow ontape if it only occurs with KIO turned on, you may want to discussed KIO issues with OS vendor Neil Truby wrote: > "Neil Truby" <neil.truby@ardenta.com> wrote in message > news:3polnvFbicgoU1@individual.net... > > "Neil Truby" <neil.truby@ardenta.com> wrote in message > > news:3pliprFb403pU1@individual.net... > >> IDS 10.0FC3 on Solaris 2.9 > > > > I conclude that our problem is with kaio and v10 at our installation. > > IBM case 439918 refers. We have been sent some tuning suggestions for the > actual test. I am a little wary of this since the problem is not really > that the test (CREATE CLUSTER INDEX) runs slowly all the time, but that it > is sporadically slow with kaio enabled *only*. But more testing and more > information certainly can't hurt ... > > In the meantime we've disabled kaio on the databse servers and discovered > another problem. With kaio disabled the backups are perhaps 75% longer (35 > minutes instead of 20), but the *restore* runs 40 times more slowly (444 > pages/second without kaio ; 10093 with kaio, that is 7.5 hours vs 20 mins > for the restore). A separate case, 439945, refers here. sending to informix-list