On Tue, 21 Jan 2014 15:42:20 -0500, John Gilmore wrote: >This thread has been curiously silent about one characteristic of >routines/instructions executed above the bar. Unsurprisingly, they >are measurably faster than their analogues executed below it. >z/Architecture is 64-bit architecture > Is this true even for a small program in 64-bit mode when the program and its data reside entirely below the bar vis-a-vis the same program and data residing above the bar?
>This is not, of course, their only or even their most important merit. > Statesmanlike discussion of the relative merits of data spaces and >memory objects is, at best, moot. The future, if there is one, is >above the bar, for both data and executables. > This is tantamount to saying, "The future, if there is one, for z/OS..." But, it's taking steps in that direction. z/OS software technology trails decades behind z/OS hardware technology. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
