On Sat, 20 Oct 2007 11:46:31 -0500, Pawel Leszczynski <[EMAIL PROTECTED]> wrote: > >Are there any other applications on this WAS instance? How are they >performing? How is your JVM garbage collection? > >How do your RMF >reports look? > >there are any RMF reports on WAS5.1? >can you give me any sample?
Assuming you are running in goal mode, and you have your tranactional CB work defined with a response-time goal, in your workload activity report your corresponding service class entry will tell you how many transactions ended during the period, etc. Tons of good info there, but what may interest you the most is the entries under "waiting". The bloody infoCenter is down right now, otherwise I'd post a link with the descriptions of the waiting codes. You can also look in the Performance Monitoring and Tuning guide. There is a section on WLM Delay Monitoring. ftp://ftp.software.ibm.com/software/webserver/appserv/zos_os390/v5 1/bbo5j102.pdf If you are not familiar with how to assign your transactions to a particular transaction class/service class/reporting class, I will post a link as soon as the infoCenter is available. REPORT BY: POLICY=MYPOLICY WORKLOAD=WEBSPHERE SERVICE CLASS=WASTNX RE CRITICAL =NONE TRANSACTIONS TRANS-TIME HHH.MM.SS.TTT --DASD I/O-- ---SERVICE- --- SERVI AVG 2.61 ACTUAL 150 SSCHRT 11.0 IOC 0 CPU MPL 2.61 EXECUTION 139 RESP 1.8 CPU 99003K SRB ENDED 12513 QUEUED 11 CONN 0.9 MSO 0 RCT END/S 13.90 R/S AFFIN 0 DISC 0.8 SRB 0 IIT #SWAPS 0 INELIGIBLE 0 Q+PEND 0.2 TOT 99003K HST EXCTD 0 CONVERSION 0 IOSQ 0.0 /SEC 109975 AAP AVG ENC 2.61 STD DEV 1.985 IIP REM ENC 0.00 ABSRPTN 42K MS ENC 0.00 TRX SERV 42K RESP -------------------------------- STATE SAMPLES BREAKDOWN (% SUB P TIME --ACTIVE-- READY IDLE -----------------------------WAITING TYPE (%) SUB APPL TYP3 CB BTE 0.0 0.0 0.0 0.0 0.0 0.0 CB EXE 121 5.1 89.3 0.0 0.0 5.6 GOAL: RESPONSE TIME 000.00.00.500 FOR 50% > > What kind of delays? >how to see what kind of delays they are? > >What other kind of work is on this box? Is the WAS work priority >reasonable with relation to your other work? Do you have the STC set >to a velocity goal, and the WAS work (CB) set to a response-time goal? > >its definitely not a problem with CPU capacity(total utilization is very small) >WAS is not waiting for CPU,I doubt also its problem with WLM settings. >Its looks like a classical bottleneck but i dont know where. >moreover its strange that the same application works fine on WAS3.1 >and very poorly on WAS5.1 >problem appears when there are many concurrent requests A lot of my questions are more background than necessarily pertinent to the question (you never know). How do you know that there are many concurrent requests? (It's much easier to track this real-time when you are using an HTTP Server front-end) When it was WAS3.5, was it also running on z/OS? What service level of WAS and Java are you running? I assume this is a webapp - no EJBs or other loveliness. So, the performance is only bad when the load is heavy? If the load then slacks off, does the performance return to acceptable levels, or does the performance just get worse as the day goes on? Do you have verbosegc turned on, and how does that output look? That should always be turned on in all of your JVMs. Are there any backend resources involved, and are they performing admirably? Do you use Tivoli Performance Viewer, or whatever it was called in 5.1? If you'd rather respond off-list, that's fine. Aaron ---------------------------------------------------------------------- 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
