Martha, Look at the "swapinnes" sysctl parameter. It reduces swap priority on Linux.
http://kerneltrap.org/node/3000 Good luck. Fernando Gieseler ___________________________________ Technical Sales Specialist for System z - Linux and z/VM - IBM Brasil fone: +55-51-2131-5848 cel: +55-51-9988-8177 fax: +55-51-2131-5875 ITN: 5 759-5848 T/L: 859-5848 [EMAIL PROTECTED] Martha McConaghy <[EMAIL PROTECTED]> Sent by: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> 29/09/2008 19:33 Please respond to Linux on 390 Port <LINUX-390@VM.MARIST.EDU> To LINUX-390@VM.MARIST.EDU cc Subject Tuning Oracle memory use (fwd) We have a bunch of Oracle databases running on SLES 10 in one of our z/9 partitions. We are only getting started with this, so we don't much (i.e. nothing) about tuning Oracle to be a polite guest in this environment and our DBA is just as new to it. He is getting advice from a vendor, but I have no faith in that as they think a mainframe is just a big PC....sigh... Anyway, we are looking at memory usage on these servers and things don't seem right to me. However, I know little to nothing about how Linux uses memory. One servers hows physical memory at 99% used, but actual is only at 9%. Swap is also at 99%. Those numbers don't sound healthy. What types of things can our DBA do to tune how Oracle uses memory or should I just up its virtual storage and postpone the problem? (Our CP paging is going up dramatically too.) Martha ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
