On Tue, 23 May 2023 08:59:58 +0800, David Crayford wrote: > ... >USS is bi-modal as are the C/C++ compilers. I run everything in USS in >ASCII mode. All of Rocket and IBMs z/OS UNIX ports are in ASCII. > Is there an ASCII shell (perhaps Rocket bash?) in which I can readily, from desktop ssh: 518 $ printf '\141\142\143\012' abc 519 $
Can it smoothly invoke all the OMVS utilities needed for POSIX compliance? Long ago I wanted to port a couple FOSS programs in "enhanced ASCKK". I gave up on Lynx because there's ASCII Curses library. I gave up on xterm because there's no ASCII X11 library. >Not just I/O bandwidth. One of the real differentiators is that Z can >run at 100%. There is an excellent blog by Bob Rogers which explains how >this achieved. > >https://blog.share.org/Article/how-does-ibm-z-achieve-efficiency-at-exceedingly-high-utilization-rates > Even earlier, a soi-disant sysadmin tried tuning our 370 clone running MVS 3.8 (IIRC). He beamed triumphantly when when he got CPU to nearly 100% and SIO high. As end user I found TSO response had become dismal. He outranked me; I didn't complain. Using high CPU utilization as a performance criterion is akin using high weight as a criterion in aircraft design. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN