Pawel,
>Hello everybody, >Recently we are reviewing our EndOfDay jobs looking for potential >performance >improvements (reducing CPU/elapsed time). >We have several jobs sorting big datasets where output is SMS-compressible >(type: EXTENDED) datasets. >When we compare such sorting with sorting on non-compressible output we >can see this: > EXCP TCB SRB el.time >TESTXWP5 STEP110 00 757K 3.51 .70 9.01 <-- w/o compression >TESTXWP5 STEP120 00 1462K 3.62 2.89 10.45 <-- w. compresion > >We guess that big SRB in (2) goes for compression (that we understand - we >probably quit compression at all), but we don't understand 2 times bigger EXCP >in second case. I recommend you ask your sort vendor to get the answer. I am sure they would be happy to explain how their excp routines are more efficient. Regards, John ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
