Mike, I use the following simple method to see how much cpu/io an application needs :
before the test I enter the following CP command : INDICATE USER xxxx you will get something like : ... CPU 00: CTIME=35:46 VTIME=085:50 TTIME=100:05 IO=820810 I then perform my tests on the linux(x transactions) when the tests are completed I enter again INDICATE USER xxxx ... CPU 00: CTIME=35:47 VTIME=086:20 TTIME=100:36 IO=823122 now I can compute how much cpu (TTIME),31 sec or (IO),2312 were consumed. Regards, Herve Bonvin -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Mike Fry Sent: Tuesday, March 02, 2004 11:55 AM To: [EMAIL PROTECTED] Subject: FW: LINUX on VM stats All, I have recently embarked upon a 'proof-of-concept' study to look at running LINUX on a zSeries platform under VM. My part of the project is to size and monitor a 'lifted' Unix application that will run on a zSeries platform (2064-2C8 + 1 IFL engine for the testing). Early testing results have left me feeling a little concerned by the lack of credible stats coming back from the internal LINUX monitoring tools (SAR, PS, TOP etc...) and data coming out of the z/VM Performance Toolkit. Running most applications on the IFL engine makes it run at 100% utilisation, so I would like to monitor the application response times and transaction volumes to get a feeling of what the engine can handle and then compare the results against the Unix figures. I have switched on the z/VM Toolkit 'event and user' stats, and expected to see the LINUX guest transaction and response times stats, but they do not show up on the monitor. The question(s) I would like some info on are, 1] Is there any way of getting accurate SAR, Accounting stats etc... out of z/VM-LINUX guest. 2] How can I measure the throughput and response times for transactions at guest level. 3] Am I doing something wrong? If anyone has experience of any of the above, or knows ways of getting 'good stats', then I would be very grateful to hear from you. Mike Fry Capacity Planning & SAS Consultant Performance & Capacity Support ISS/Mainframe Infrastructure, Enable Tel c/w: 2000 x4813 Tel ext: 01565 614813 Internet communications are not secure and therefore the Barclays Group does not accept legal responsibility for the contents of this message. Although the Barclays Group operates anti-virus programmes, it does not accept responsibility for any damage whatsoever that is caused by viruses being passed. Any views or opinions presented are solely those of the author and do not necessarily represent those of the Barclays Group. Replies to this email may be monitored by the Barclays Group for operational or business reasons. Barclays Bank PLC. Authorised and regulated by the Financial Services Authority.
