Without reading any documentation (sorry!), the issue at hand is this. I want to show the performance gains of using DFP (Decimal Floating Point) for the typical financial application, after I noticed at some other client their bought packages seldom were compiled using the right compiler options (some could have run in 1966 or so - well I exaggerate, but a Z9 would not have been a problem).
This is for Java applications, and it proves slightly harder than I thought. I don’t have object modules to disassemble and while I can do -XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly on my mac or any Linux box, IBM’s J9 seems to ignore these altogether. For Linux and the mac there is a .so (or .dylib) that even disassembles what you’d otherwise are shown in hex - https://chriswhocodes.com/hsdis/ which is called hsdis but what I would not upload to other people’s machines lightly without building it myself. Does anybody know how to ask the J9 (Java 8) on z/OS how to show me what it does when the JIT decides native code would be best? many thanks in advance, best regards, René Jansen. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
