I've been out for a week, and I haven't seen this possibility posted in response to your problem, so I'm going to post it. Feel free to cross-post to MVS-OE if you think it's necessary.
Check with the vendor to see what kind of I/O the application does. We once had an engineering software vendor come in here with a "wonderful" application that the users really wanted badly. They had seen it run on a PC or Unix box, I forget which. On MVS/ESA (at that time) it ran like a dead dog. The problem? They were doing I/O a byte at a time. On Unix/Windows filesystems that didn't matter a lot (I am not a filesystem guru, so I'll not try to explain why), but when they got to MVS, of course, it died because they were writing one-byte blocks to CKD disk. I realize that HFS will change this but there's still got to be a lot of of overhead if you're doing byte-level work on your files. Tim Hare Senior Systems Programmer Florida Department of Transportation (850) 414-4209 "Chase, John" <[EMAIL PROTECTED]> Sent by: IBM Mainframe Discussion List <[email protected]> 10/27/2006 02:35 PM Please respond to IBM Mainframe Discussion List <[email protected]> To [email protected] cc Subject Re: Java/LE Tuning Advice sought Possible progress: In my open "TechQA" question with IBM on this topic I got a "new" option to specify in the Java options, and I am now recording verbosegc output in readable form. The option is -Xverbosegclog:filename where filename is a file name of one's own choosing. Maybe this is the "something" that another poster couldn't remember having to do? -jc- ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
