That's another interesting take; but I have to be sure that it is used before I declare the winner.
> On 22 Mar 2023, at 18:00, David Crayford <dcrayf...@gmail.com> wrote: > > I can't answer you original question but I doubt if DFP is really that much > faster. I would imagine it's implemented in millicode and not silicone so is > a software implementation at heart. I would be surprised if it beats > BigDecimal on a PC but I could be wrong. > > On 23/3/23 00:42, René Jansen wrote: >> 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 > > ---------------------------------------------------------------------- > 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
