Re: CPROBJ

["Al Barsa, Jr." <barsa2@xxxxxxx>]

At 11:14 PM 7/16/97 +1000, you wrote:
>Hi all,
>
>We're considering using the CPROBJ command to save some DASD, initially
>only on our own objects. I was wondering if anyone had any views/
>experience on the impact from a performance point of view of having to
>decompress objects?
>
Hi Mark

I think that we are neighbors.  I just moved to 2900 Westchester Avenue,
Purchase.

>From what I understand, your systems are fairly large.  Large systems tend
to have large data files, and a relatively small amount of space devoted to
programs.

If you compress your programs, your performance will suffer.

In general I don't think that you will buy yourself much.  BTW, you will
probably go to a lot of effort to figure this out.

IBM invented CPROBJ for IBM programs.  At the time, IBM felt that 80% of
the installed base was using 20% of the AS/400 function, so the rest could
be left compressed.  The ratio today is probably about 90/10.

Lastly, this support was invented for small systems, with very little DASD. 

You probably need to execute that very painful command SPENDMONEY, and get
some more DASD.

Al

Al Barsa, Jr. - Account for Midrange-L
Barsa Consulting, LLC.  
400 > 390

Phone:  914-251-9400
Fax:    914-251-9406





Private mail should be sent to barsa@ibm.net
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