we did exactly the Same to a custumer specific Debugging Product some years 
ago (replacing x00 Breakpoints with trap2) and Made the Same experience: 
some Performance gains but not so much. for the Update of the duct our 
systems Folks wrote a Special svc for us which did only this, nothing Else.

Kind regards

Bernd


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--- Original-Nachricht ---
Von: Dave Cole
Betreff: Re: Use of "trap" facility in z/OS?
Datum: 22.06.2019, 9:23 Uhr
An: IBM-MAIN@listserv.ua.edu




FWIW: Around a year ago, z/XDC became a product that uses TRAP2. It
gives the user the option of using TRAP2 or X'00' opcodes for
breakpoints. It yields some performance improvement, but not as much
as I had hoped.

Dave Cole
ColeSoft Marketing
414 Third Street, NE
Charlottesville, VA 22902
EADDRESS: <mailto:dbc...@colesoft.com <mailto:dbc...@colesoft.com> >
dbc...@colesoft.com <mailto:dbc...@colesoft.com>

Home page: www.colesoft.com <http://www.colesoft.com>
LinkedIn: www.xdc.com <http://www.xdc.com>
Facebook: www.facebook.com/colesoftware
<http://www.facebook.com/colesoftware>
YouTube: www.youtube.com/user/colesoftware
<http://www.youtube.com/user/colesoftware>

Tools: <http://www.colesoft.com/zxdc/>z/XDC
<http://www.colesoft.com/zxdc/>z/XDC> for Assembler debugging
<http://www.colesoft.com/c/>c<http://www.colesoft.com/c/>/XDC
<http://www.colesoft.com/c/>c<http://www.colesoft.com/c/>/XDC>
for C debugging





At 6/21/2019 07:33 AM, John McKown wrote:
>On Thu, Jun 20, 2019 at 5:41 PM Chuck <ch...@arneycomputer.com
<mailto:ch...@arneycomputer.com> > wrote:
>
>> > The TRAP Instructions work fine John. You have used a product that 
uses
>> > them.
>> >
>I do? I don't know which product that is. Or is "you" a generic in this
>case?
>
>
>
>> >
>> > Chuck Arney
>> >
>> >
>--
>Money is the root of all evil.
>Evil is the root of all money.
>With that in mind, money is made by the government ...
>
>Maranatha! <><
>John McKown

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