> I'm trying to benchmark cputime (under CICS) with pieces of code I'm > changing, ECTG before and ECTG after. I'm zeroing out operand 1 > before the ECTG thus I get a negative value in GPR0(because ETCG > subtracts the operand 1 with the timer value) after I'm doing a LCR > of GPR0 to get the positive timer value. If the cputimer went > negative during the test (timer interrupt), the second ECTG is > higher than the 1st one and since I don't know the "refeed" value of > the CPUTIMER, I can't tell how much cputime was spend. I know I > could use CICS internal values or statistics) but since they made > ECTG as non-privilege I figured I'd give it a try. So... I'm missing > something in the concept (the refeed value and how many times the > interrupt occured ?)
We don't intend for you to code the ECTG instruction yourself. We intend for you to use the TIMEUSED macro with LINKAGE=BRANCH and ECT=SYSTEM | COND | YES before and after the code you are measuring. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
