Re: Informix v7.24 on HP-UX 10.20

Hi Neil, we have 7.30.UC2 on HP-UX 10.20 and experienced also problems before setting RESIDENT=1. We do not have problems with KAIO, but we often have users or process terminating on deadlocks. We upgrade to 7.30.UC6 yesterday and deadlocks seems to have disappeared. We do not have all this problems with 7.23.UC1 on HP-UX 10.01 David... -----Message d'origine----- De : Neil Truby <ntruby@netcomuk.co.uk> ' : informix-list@iiug.org <informix-list@iiug.org> Date : mercredi 20 janvier 1999 11:26 Objet : Informix v7.24 on HP-UX 10.20 We've recently upgraded to this version and had a lot of problems with it. I've posted pleas for help on some of these problems. We seem to have got to the bottom of them now, so may I share my experiences? I would point out that, as far as I know, these problems are specific to HP-UX: Originally we found that IDS would hang after a few minutes' operation. This problem was eventually remedied (after five weeks) by HP, who suggested, inter alia, setting RESIDENT=1. We've had no further hanging problems. Once we did go live we found that we had greatly reduced performance. This was most noticeable (in reality probably most measurable) in our regular batch suites and. for some reason, level 1 archives, whose elapsed times increased by a factor of three or more. Informix have now alerted me to bug warning 92132, which warns of severe I/O performance degradation using kaio on some versions of v7.2x. I have disabled kaio on our production engine and, as if by magic, the problems have gone away. So be warned! Neil Truby aracnet Limited Weybridge, UK