In https://www.ibm.com/docs/en/zos/2.4.0?topic=performance-improving-zos-shell it mentions export _BPX_SHAREAS=YES
*Set _BPX_SHAREAS to YES. (REUSE is the same as YES.) The shell will run foreground processes in thesame address space as the shell is running in, which saves the overhead of a fork() and exec().* Which (I think) means it does not start up other address spaces, and would avoid any WLM involvement in the spawned address space I think we tuned the parameters given in this section and got a reduced overall CPU Colin On Tue, 20 Aug 2024 at 22:25, Lionel B. Dyck < [email protected]> wrote: > Are there any studies, white papers, redbooks, presentations, articles, or > ... that address how to use WLM to effectively improve the performance of > long running shell scripts invoked via (a) TSO OMVS, (b) Batch job, or (c) > ssh? With the script spawning several address spaces this can be a > challenge. > > Thanks for any pointers. > > > Lionel B. Dyck <>< > Github: https://github.com/lbdyck > System Z Enthusiasts Discord: https://discord.gg/sze > > “Worry more about your character than your reputation. Character is what > you > are, reputation merely what others think you are.” - - - John Wooden > > ---------------------------------------------------------------------- > 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
