> I disagree with CC. If a vendor can't tell me how much storage is needed, I get VERY LEERY. I can't afford (when I'm working, at least) to have a storage hog that might adversely affect performance of my entire image. Not only do I have to be concerned about storage creep in programs, my other concern in this area is the poor slob who expects to store a week's SMF data in a VIO file. And a management that doesn't allow the use of controls in this area only adds to my headaches..... >
Sometimes it is impossible to do that as is the case with Java. The amount of storage used within the JVM has a static component based on user definitions, but after that it is a function of what the Java program is doing and there is no way the calculate that as it is completely dynamic and can vary from one run to another based on what the program does. It also depends on how the customer has set up LE, CTG, DB2 etc. etc., so there are other variables to make it even harder. You can get typical sizes for the application by experience. Not trying to excuse Java, it is just how the software works. Storage creep can also be due to the way that the users write their code, it is not always the fault of the software vendor. It would be nice if everything was straight-forward in this world, but it refuses to play ball. ------------------------------------------------------------------------------------------------------------------ Mike Poil Java z/OS Level 3 Service IBM United Kingdom Limited, Hursley Park, Winchester SO21 2JN Internal: 246824 External: +44 (0)1962 816824 Java debugging: http://www.ibm.com/developerworks/java/jdk/diagnosis/ ------------------------------------------------------------------------------------------------------------------ Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
