On Fri, 10 Mar 2017 21:05:20 +0000, Graham Harris wrote: >Being somewhat interested in validating whether VIO still serves a purpose >in these modern times with super quick DASD, i just ran some mickey mouse >comparisons, doing 10k allocates/frees of temporary datasets on VIO vs DASD. > >Results tend to imply that the old adage of "the best I/O is no I/O", still >appears to hold true. > >DASD: Elapsed: 3 minutes CPU: 27 seconds >VIO: Elapsed 12 seconds CPU: 10 seconds
For the OP's case, a more interesting test would be allocate open output write a bunch of records close open input read the records close free -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
