Thanks, both of you. I did find this more recent (1996) info from Barry: http://216.234.245.194/news/news30.asp (scroll down to #21.)
He's got it down (now) to a pretty simple formula: "the maximum number of SAM buffers (BUFNO=) should be MIN ( 30 , 240K/BLKSIZE)." Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Ted MacNEIL Sent: Thursday, August 25, 2005 5:00 PM To: [email protected] Subject: Re: Most effective BUFNO? >E.g., if you code BUFNO=huge, for very large values of huge (>>5), >then you will tie up large amounts of real storage which, in some situations, may cause other users to suffer excessive page faults. ... As smart as DR. Barry is, I wouldn't trust anybody's 21 year old paper on memory/disk/io performance. ---------------------------------------------------------------------- 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
