G'day Greg,

Thought I would take the opportunity to run a quick test on a z800. Copying
a 108 track SMF dataset.

1. Using ICEGENER without compression 9 CPU seconds into 108 tracks.
2. Using ICEGENER with compression 30 CPU seconds into 76 tracks.
3. Using ISPZIP compression 78 CPU seconds into 8 tracks.

As usual you get what you pay for and the more compression you want the more
expensive it is in CPU terms.

>From the Cambridge Online Dictionary. 
Compressible, the third meaning is,
To make a computer file use less space when it is stored in the memory of a
computer or on a disk, by using a special program:
Compressable is not known.

It's now Beer O'clock,
Cheers, Paul Gillis


>What I was really fishing for was user experiences with using DFSMS
>compressed extended-format sequential data sets.

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