In z/OS 1.8 the memory management is much more conducive to large memory. They no longer use the least recently used algorithm and no longer check every page. This has made a big difference for us. Under 1.7 we had issues with large real memory sizes due to the constant checking by RSM. This is no longer the case and we have increased our memory dramatically with no performance hit.
Jon L. Veilleux [EMAIL PROTECTED] (860) 636-2683 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Max Scarpa Sent: Wednesday, November 07, 2007 9:31 AM To: [email protected] Subject: Re: Real storage usage - a quick question Hi Martin how is it ? We're in V7, I suppose you warned about 2 Gb limit. If the case, I can assure you we're quite far from 2GB limit... Anyway you've said that there were highly variable results (in tests and in late 80s) which means that sometime things went better and sometimes things worsened (about cpu usage I presume). Is it correct ? Max Scarpa This e-mail may contain confidential or privileged information. If you think you have received this e-mail in error, please advise the sender by reply e-mail and then delete this e-mail immediately. Thank you. Aetna ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
