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

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