RE: LRU_MAX_DIRTY / LRU_MIN_DIRTY Both equal to 1
Posted in 2006
How about increasing the LRUs then the 2% should be fine. BTW if you are planning to upgrade to IDS 10 then max/min dirty accept fraction of a percent do you can use 1% and 0.5% Basim Chafik Senior Systems Analyst IBM Certified Advanced Technical Expert (CATE) 1.800.688.4895 basim.chafik@plx.com plexus (Division of BancTec) -----Original Message----- From: good_ifmx@yahoo.com [mailto:good_ifmx@yahoo.com] Sent: Sunday, November 05, 2006 12:19 PM To: informix-list@iiug.org Subject: LRU_MAX_DIRTY / LRU_MIN_DIRTY Both equal to 1 Hi, Anybody is using the following settings LRU_MAX_DIRTY=1 LRU_MIN_DIRTY=1 using Informix 7.3 Engine.........7.31.FD5 / HPUX-11 Heavily used OLTP system.. Current settings LRU_MAX_DIRTY=2 and LRU_MAX_DRITY=1 LRU=128 CLEANERS=128 BUFFERS=500000 slightly longer checkpoints.. As per the old postings, LRU_MAX_DRTY=1 and LRU_MIX_DIRTY=0 is not good.. I badly want to reduce the number of dirty buffers at least to 1%.. CLEANERS are not able to bring it currently down to 1% because of the high activity..Normally it is around 1.8% right before the checkpoints.. Upgrade to 9.4? .. Yes it is an option long tem.. I would like to know whether anybody tried LRU_MAX_DRTY=1 and LRU_MIN_DIRTY=1 settings.. Any adverse affect.. Yes engine does come up with the settings. Any help is greatly apprecited _______________________________________________ Informix-list mailing list Informix-list@iiug.org http://www.iiug.org/mailman/listinfo/informix-list