Re: onperf vs onstat information

From: Mister Creosote <glynb@my-deja.com> > >I am struggling to make sense of some info I am being presented with by >onperf and onstat. > >onstat -g seg output :-> >Informix Dynamic Server Version 7.31.UC2 -- On-Line -- Up 00:04:25 -- >188416 Kbytes > >Segment Summary: >id key addr size ovhd class blkused blkfree >509 1381451777 82000000 58720256 1748 R 6688 480 >510 1381451778 85800000 134217728 2640 V 380 16004 $ bc1024*131072 134217728 >511 1381451779 8d800000 4194304 656 M 54 458 >Total: - - 197132288 - - 7122 16942 > >Am I readng this wrong, or does the final section in the first line >mean I have some 188416Kb of Shared Memory allocated to this instance? >If this IS the case, how come onperf/tools/status for this instance >shows only some 2.97Mb rather than 184Mb? I'm sure this is a simple one Sorry, I don't have a working onperf to hand, so I can't even look at that bit. >so accept my apologies in advance. The main reason for the question is >that we have some 640Mb physical RAM in the machine which is dedicated >to IDS (aren't we all?) and I want to maximise the use of this RAM. >Could someone also explain the use of the SHMVIRTSIZE entry in >$ONCONFIG - again my understanding is that this is the initial size of >the virtual shared memory segment (in Kb) - that being the case, our >values do not equate to what I am seeing above. In what way? $ bc1024*131072 134217728 >SHMVIRTSIZE 131072 # initial virtual shared memory ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com