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Doc,Quantitatively (benchmark-wise) I can't say which (OPM or ILE) is faster. But your last post said anecdotal as well, so here goes.
Our base applications are still running in the /36 environment with RPG II programs and procedures. However, every new function/program is either RPG IV or ILE RPG. I recently, for example, had to add a new tax structure (ILE) to our existing on-line pricing module (RPG II). The ILE program had (currently) fifteen (15) subprocedures. The response is sub-second.
As for batch, I have no quantitative figures here either. But I quit using the SBMJOB simply because on our i/5 520 (and even on the old 720) it takes seconds to process files with 100k records.
The 520 probably forgives a lot of any inefficiencies I may (inadvertently) foist upon it. And I dare say that, if I wanted to do so, I could bring an ILE or IV program to its knees. We don't have any RPG III programs, but I have noticed no degradation in on-line response times when putting hooks (CALLs) from an RPG II program to an ILE or IV program. Plus the fact that I can easily add new tax structures to the above mentioned program and a myriad of other functions, such as IFS access, that simply cannot be done (or not done easily) in OPM makes eschewing OPM a no-brainer.
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e.h.doxtator@xxxxxxxxxxxxx wrote:
message: 2 date: Tue, 24 Jan 2006 12:54:34 -0500 from: Don <dr2@xxxxxxxx> subject: Re: ILE V OPM Performance Increase? Doc, this should be fairly easy to roll-your-own on. and you could modify itto use customer data/apps which makes selling the case alot easier.Don in DC At 11:41 AM 1/24/2006 -0600, you wrote:All Just curious-- has anyone seen any performance improvement in either batch or interactive after converting a program from OPM RPG to ILERPG?(I'm talking about your run-of-the mill batch or interactive programs that do native file I/O, basic calculating and reporting, etc.) If so, are there any numbers that quantify any findings, for eitherV5R1or V5R3? I remember reading several years ago that IBM swore off doing any performance enhancements to the OPM runtime-- I'm wondering if the last few releases have helped the ILE runtime performance. Thanks -DocOK, so there's nothing out there? Nobody's looked into this? Nobodyhas even mentioned any anecdotal evidence.The reason I ask is this-- I'm trying very hard to push my client into ILE. (Their entire codebase is OPM.) They're fighting with the Cone of Fear argument ("We've never done that before."), so I need to have some sort of quantifiable argument. That sort of thing takes time. I was hoping that there was some sort of rudimentary analysis that someone had done, just to see if I should even bother with it-- if the speed increase is dinky, then there's no point in spending time on it. Thanks -Doc This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is prohibited.
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