RE: Memory Usage on Informix 7.24

Hi Lee, What onstat commands are you running? I think you might be trying to mix apples and oranges here. We are using Sun (2.5.1) as our OS and Informix 7.24UC3. I don't know anything about NEC machines. Output from the Sun ps command can show you the size of a process=20 in memory (ie oninit)in O/S pages (pagesize=3D4096 for Solaris 2.5.1). Again, this is for a process. Of the top of my head, I don't know of any onstat commands that can do that. The onstat commands show you sizes of shared memory. Examples : onstat -g seg ; shows the size of shared memory segments. similar to the Sun Unix Command, ipcs -m. onstat -R |grep total ; shows you the number of buffers. =20 Multiply this times Informix page_size to get the actual=20 amount of shared memory consumed by buffers. onstat -g sch ; maps O/S process id's to VP classes, nomemory sizes are returned here. -----Original Message----- From: LEE Hsin [mailto:LIX@necsin.nec.com.sg] Sent: Tuesday, May 11, 1999 3:07 AM To: informix-list@iiug.org Subject: Memory Usage on Informix 7.24 Hi, everybody=20 I have a question and hope you could give me suggestions. Now, we are developing an application on NEC UP machine (UNIX) with Informix 7.24. = After starting up Informix, we use onstat utility to see how many memories = used by Informix. The result is the same as our settings in onconfig file. That = is, 80MB for buffer and 32MB for shared memory. However, when we use UNIX = ps command to see how many memories used by Informix processes (virtual processors), the outcome makes us surprised: they use more than 300MB! = In our setting, we have six physical processors and 10 AIO virtual = processors. They allocate 16MB memory each! I am very confused, I believe there = must be some things wrong. I don=A1=AFt believe Informix occupy so many = memories. But, I don=A1=AFt know what happened exactly. Would you like to give me a = reasonable explanation?=20 Thank you in advance.=20 best wishes, lix=20