As i remember:
ispf/rexx spawn a java that redirect stdin/stdout to unix pipes filetypes.
Rexx open the pipes with syscall functions. Send request to stdin & receive
response from stdout, with a start/end of response known protocol.
--
On Wed, 6 Nov 2019 14:30:31 -0600, Lionel B Dyck wrote:
>The biggest gain was using the environmental stem for bpxwunix that I
>implemented this morning after some testing. I will check out that
>bpx_shareas shortly as it sounds interesting.
>
Details? What did you put in that environmental s
Improving the performance of an ISPF app using OMVS services
(bpxwunix)
Hi Lionel.
Have you tried bpx_shareas in the env. stem passed to BPXWUNIX?
Are you running a unix command or starting a shell script?
Is your command "apf"?
Some time ago, I was working in a similar issue: Ispf calling Jav
Hi Lionel.
Have you tried bpx_shareas in the env. stem passed to BPXWUNIX?
Are you running a unix command or starting a shell script?
Is your command "apf"?
Some time ago, I was working in a similar issue: Ispf calling Java. The
creation of the JVM was really heavy, so we changed java code to
Not necessarily.
See for example, the IBM JZOS batch launcher. It runs in a regular z/OS
batch address space. The address space is dubbed when Java its first OMVS
service call. Is that "under UNIX"?
On Mon, Nov 4, 2019 at 1:07 PM ITschak Mugzach wrote:
> The Java program does not run as a
Of Lionel B Dyck
> > Sent: Monday, November 4, 2019 12:00 PM
> > To: IBM-MAIN@LISTSERV.UA.EDU
> > Subject: Re: Improving the performance of an ISPF app using OMVS services
> > (bpxwunix)
> >
> > Thanks for the education.
> >
> > Guess I need to find a f
On Mon, 4 Nov 2019 05:20:14 -0600, Lionel B Dyck 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.
>
See also:
https://www.ibm.c
On Mon, 4 Nov 2019 14:18:30 -0500, Tony Harminc wrote:
>
>Many programs that are customarily started from a shell prompt don't
>have to be. Often this is just UNIXism at play. I have had success in
>the past copying UNIX executable files (i.e. Program Objects in UNIX
>files) into PDSE members, and
On Mon, 4 Nov 2019 at 14:07, ITschak Mugzach wrote:
> The Java program does not run as a main program, but need a shell
> environment such as the one supplied by BPXBATCH. So actually the java
> program already runs under a unix thread. this is not the case with Lionel
> performance issue, as his
The Java program does not run as a main program, but need a shell
environment such as the one supplied by BPXBATCH. So actually the java
program already runs under a unix thread. this is not the case with Lionel
performance issue, as his code runs under TSO and requires an extra asid to
run the uni
On Mon, 4 Nov 2019 at 07:32, ITschak Mugzach wrote:
On Mon, 4 Nov 2019 at 07:30, Steve Austin wrote:
> It was a while back, but I'm pretty sureI have used _BPX_SHAREAS and the
> spawn syscall from REXX, to run Java in the same address space.
Thats fine. However, java itself runs under unix..
On Mon, 4 Nov 2019 05:20:14 -0600, Lionel B Dyck 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've had bad performance due to
ame address space.
>
> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of Lionel B Dyck
> Sent: Monday, November 4, 2019 12:00 PM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: Improving the performance of an ISPF app using OMV
2019 12:00 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Improving the performance of an ISPF app using OMVS services
(bpxwunix)
Thanks for the education.
Guess I need to find a faster system 😊
Lionel B. Dyck <
Website: http://www.lbdsoftware.com
"Worry more about your charac
age-
From: IBM Mainframe Discussion List On Behalf Of
ITschak Mugzach
Sent: Monday, November 4, 2019 5:52 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Improving the performance of an ISPF app using OMVS services
(bpxwunix)
No. the fork is a unix issue. the first shell task will be started a
utation. Character is what
> you are, reputation merely what others think you are." - John Wooden
>
> -Original Message-
> From: IBM Mainframe Discussion List On Behalf
> Of ITschak Mugzach
> Sent: Monday, November 4, 2019 5:36 AM
> To: IBM-MAIN@LISTSERV.UA.EDU
>
uot; - John Wooden
-Original Message-
From: IBM Mainframe Discussion List 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
reputation merely what others think you are." - John Wooden
>
> -Original Message-
> From: IBM Mainframe Discussion List On Behalf
> Of ITschak Mugzach
> Sent: Monday, November 4, 2019 5:25 AM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: Improving the performance o
ur reputation. Character is what you
are, reputation merely what others think you are." - John Wooden
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
ITschak Mugzach
Sent: Monday, November 4, 2019 5:25 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Improving the perf
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
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
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