It's not new math. It's bad math. And you are under no misconception. 1 MB = 256 4K pages, not 16 4K pages. It appears that even IBMers are not immune from the creeping innumeracy against which we were forewarned in some recent posts.
Whatever. The new 1 MB LP is equal to a whole great big whopping passel [1] of the old, tiny 4K pages. Bill Fairchild Programmer Rocket Software 408 Chamberlain Park Lane • Franklin, TN 37069-2526 • USA t: +1.617.614.4503 • e: [email protected] • w: www.rocketsoftware.com [1] One "passel" is a lot bigger than a bunch, maybe even somewhere between 16 and 256. I guess. I'm just trying to get over my obsession with precision so that when I get burned out from doing bits and bytes I can do prufreding for technical articles in trade journals. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Mark Zelden Sent: Tuesday, January 08, 2013 3:58 PM To: [email protected] Subject: IBM Systems Magazine Article on zEC12 + Java http://www.ibmsystemsmag.com/mainframe/trends/whatsnew/java_compiler/?page=3 "Historically, System z has had a 4K (4096-byte) page frame. The IBM System z10 mainframe introduced 1-megabyte large pages (LPs). A 1MB LP contains the equivalent of 16 4K pages." 16?? Must be new math or I'm suffering from a misconception. -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS mailto:[email protected] Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html Systems Programming expert at http://expertanswercenter.techtarget.com/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
