But when rexx, under ispf, invokes bpxwunix won't the sharedas help to prevent the fork?
Lionel B. Dyck <sdg>< Website: http://www.lbdsoftware.com "Worry more about your character than your reputation. Character is what you are, reputation merely what others think you are." - John Wooden -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of ITschak Mugzach Sent: Monday, November 4, 2019 5:36 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Improving the performance of an ISPF app using OMVS services (bpxwunix) That's because _BPX_SHAREDAS is related to a main shell program and its forks. not to the Rexx (or whatever the caller is) and the unix shell. On Mon, Nov 4, 2019 at 1:29 PM Lionel B Dyck <lbd...@gmail.com> wrote: > That was my fear 😊 > > I did find these which I implemented in my .profile and I'm not seeing > any visual improvements: > > export _BPX_SHAREAS=YES > export _BPX_SPAWN_SCRIPT=YES > > > Lionel B. Dyck <sdg>< > Website: http://www.lbdsoftware.com > > "Worry more about your character than your reputation. Character is > what you are, reputation merely what others think you are." - John > Wooden > > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On > Behalf Of ITschak Mugzach > Sent: Monday, November 4, 2019 5:25 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Improving the performance of an ISPF app using OMVS > services > (bpxwunix) > > Lionel, > > The secret is that zPDT systems are not heavily loaded. As you load > the system (or start mot guests, if running under z/vm), the system > starts to slow down. BPXWUNIX starts a new address space, so by > definition it is more cpu consuming, that affects elapse. > > ITschak > > On Mon, Nov 4, 2019 at 1:20 PM Lionel B Dyck <lbd...@gmail.com> wrote: > > > Are there any hints/tips to improve the performance of an ISPF > > application that uses BPXWUNIX? In running on my normal system the > > performance is very slow compared to a friends system running on a zPDT. > > > > > > > > I couldn't find a SHARE presentation (but I may not have used the > > correct > > keywords) and the IBM pubs are not speaking to me as nothing jumps out. > > > > > > > > > > > > Lionel B. Dyck <sdg>< > > Website: <http://www.lbdsoftware.com/> http://www.lbdsoftware.com > > > > "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 lists...@listserv.ua.edu with the message: INFO > > IBM-MAIN > > > > > -- > ITschak Mugzach > *|** IronSphere Platform* *|* *Information Security Contiguous > Monitoring for Legacy **| * > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- ITschak Mugzach *|** IronSphere Platform* *|* *Information Security Contiguous Monitoring for Legacy **| * ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
