I'll bet 99% of people -- even those who ran OS/360 -- didn't t know what Roll out / Roll in did.
I found it included in Mitre OS/360 SYSGEN when I joined company in 1971, laughed, exercised it, removed it -- saving xxKB from resident nucleus, back when bytes were precious. It enabled JCL options, something like Rollout=yes and Rollin=yes. Specify former, job was eligible to be pushed entirely out of memory to disk. Specify latter, job was eligible to push jobs out to make room. Or maybe that's backwards, or maybe those aren't the precise options. Some jobs designated as bullies, others wimps. Of course nobody at Mitre had ever used them; for grins I coded two jobs, one each. Ran wimp job, then bully job. Operator got a couple mysterious messages he'd never seen before about wimp job being rolled out and rolled in. Then I redid SYSGEN minus that pointless option. It was early primitive swapping. Lizette Koehler <[email protected]> said: How about here http://www.lbdsoftware.com/os360.jpg ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
