Assuming you are talking about WAS, it can write SMF 120 records if configured to do so. That would be similar to the CICS SMF 110 records. That would give you an idea of what was running during that timeframe. I would also suggest turning on verbose GC. If you are having heap issues, that should show up there. Overhead on verbose GC is negligable. If you have a DB2 monitor, you can look at that during that time frame and see if there are any heavy/poor DB2 apps running.
Larry Gray Large Systems Engineering Lowe's Companies 336-658-7944 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Gary Green Sent: Thursday, July 10, 2008 10:29 PM To: IBM-MAIN@BAMA.UA.EDU Subject: WebSphere Question If someone knows where I should ask this question, please tell me where to go. ;) Otherwise... I was chatting with the manager of the tech support group at another company and he was telling me that in his shop they experience a terrible slowdown in WebSphere most afternoons; "sucks the life out of the machine" comes to mind. They do not have anyone that does performance or capacity work to "run the numbers"; and they collect very little SMF data even if they did or knew how to "run the numbers". He thinks it's the application programmers poorly written code, probably Java doing some daily end of day stuff. To make matters worse, they are still on 1.4, with plans to make a brief stopover on 1.7 before heading off to 1.9. They are pretty much a vanilla IBM shop with a couple of DB2 V7 production regions a couple of production CICS regions and some/few regions each for QA, Dev and testing. I think he said WebSphere was... version 6 if that makes sense... (I am not conversant in WebSphere). They are on a ~480 mip Z9. I know this is not really much to go on but does anyone have any suggestions I could pass along? Perhaps some insight or suggested diagnostic processes? Gary Green While the big event is over, there is still time for you to help me with my efforts to assist those stricken with cancer! Please support my efforts by visiting: <http://www.active.com/donate/tntsonj/tntsonjGGreen> http://www.active.com/donate/tntsonj/tntsonjGGreen Thank you. ---------------------------------------------------------------------- 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
