Massimo Biancucci wrote:

>Output - Compressed Dataset
>STEPNAME PROCSTEP    RC   EXCP    CPU    SRB  CLOCK   SERV  PG   PAGE   SWAP
>         ST040       00  1247K   8.65    .79  23.77 38592K   0      0      0

>Output - DUMMY
>STEPNAME PROCSTEP    RC   EXCP    CPU    SRB  CLOCK   SERV  PG   PAGE   SWAP
>         ST040       00   201K   1.10    .04   2.24  4725K   0      0      0

>Output - Virtual Tape Dataset
>STEPNAME PROCSTEP    RC   EXCP    CPU    SRB  CLOCK   SERV  PG   PAGE   SWAP
>         ST040       00  3730K   1.19    .20   8.86  7476K   0      0      0

>What is not so clear to me is why the elapsed time does grow so much even 
>though there's no CPU constraint.

>Because of the lower number of EXPCs I'd been expecting something less in 
>terms of elapsed or something similar.

VTS has more EXCP. Wild guess - Does your VTS do hardware compression despite 
your software compression?

Groete / Greetings
Elardus Engelbrecht

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