Re: BUFFERS! Arghhh!!! Please help before I do something silly!

> CLEANERS and LRUS seem to be sufficient without more info. How many chunks > do you have? Set CLEANERS to at least 1.5*#chunks plus a few, if the 84 is > more than that then leave it. Looks like you're running 9.4, try reducing > LRU_MAX/MIN_DIRTY to 1.0 and 0.5 or 1.0 & 0 that alone should cut checkpoint > time in half. > Art S. Kagel Thanks again Art. I have 137 chunks, so about 210? I was thinking that there was a rule that when you raise the number of CLEANERS, you should also up the LRUs? I likely am way off base there, I dont know. I will tweak the CLEANERS and then if needed lower my MAX/MINs...which is another confusing subject based on the 9.4 Performance Guide. Thanks for all the wisdom!

"sumGirl" <emebohw@netscape.net> wrote in message news:a5e13cff.0404290943.71aa323@posting.google.com... > > CLEANERS and LRUS seem to be sufficient without more info. How many chunks > > do you have? Set CLEANERS to at least 1.5*#chunks plus a few, if the 84 is > > more than that then leave it. Looks like you're running 9.4, try reducing > > LRU_MAX/MIN_DIRTY to 1.0 and 0.5 or 1.0 & 0 that alone should cut checkpoint > > time in half. > > Art S. Kagel > > Thanks again Art. I have 137 chunks, so about 210? I was thinking that > there was a rule that when you raise the number of CLEANERS, you > should also up the LRUs? I likely am way off base there, I dont know. > > I will tweak the CLEANERS and then if needed lower my MAX/MINs...which > is another confusing subject based on the 9.4 Performance Guide. > CLEANERS 127 LRU 127 After a while look at onstat -u and the informix ones at the top are the page cleaners. Check if any have all 0's against them and adjust accordingly allowing for futures peaks in load. > Thanks for all the wisdom!