LRU,cleaner and buffer

Posted in 2001

Murat YILDIZ — Mon, 15 Jan 2001 14:46:02 GMT — source: Informix-list mailing list archive (1991-1998)

How can I be sure that the number of cleaners are sufficient?Do I have to increase the number of cleaners when I increase buffer from 50000 to 100000?Do the #of cleaners have to be greater than # of LRUs?What is the scale?What should I check to see that cleaners are not sufficient? Thanks... cleaners 13 LRU 63 buffer 100000 LRU_MAX_DIRTY 4 LRU_MIN_DIRTY 2 Sent via Deja.com http://www.deja.com/

↪ replying to Murat YILDIZ

Art S. Kagel — Wed, 07 Feb 2001 00:10:37 -0500 — source: Informix-list mailing list archive (1991-1998)

CLEANERS should be >= LRUS in general though some have said that on a machine with only a few CPUS 4 CLEANERS per CPU seems to be a max also. I have not found this but then I run 28 CPU VPs on a 32 CPU box with 128 LRUS and CLEANERS. Art S. Kagel Murat YILDIZ wrote: > > How can I be sure that the number of cleaners are sufficient?Do I have > to increase the number of cleaners when I increase buffer from 50000 to > 100000?Do the #of cleaners have to be greater than # of LRUs?What is > the scale?What should I check to see that cleaners are not sufficient? > Thanks... > > cleaners 13 > LRU 63 > buffer 100000 > LRU_MAX_DIRTY 4 > LRU_MIN_DIRTY 2> > Sent via Deja.com > http://www.deja.com/