Re: Performance Question - Authority check rate exceeded guideli

[John Earl <johnearl@xxxxxxxxxx>]

John,


At 10:54 AM 11/19/97 -0500, you wrote:

> I have a system where the performance tools Advisor function is informing me
>that the "Authority check rate exceeded guideline" but gives no other details
>as to how to find out where my problems are.   I have found reference to it in
>a V3R1 redbook (I am at V3R2 with this system) that hints at using the trace
>data of performance collection to report where my potential problem lies.
>Anyone out there have hints as to which reports or tools can be used to narrow
>down my problem objects?


One source of excessive authority checks can be when a job has to
continually re-resolve itself to an object, especially a program.  A typical
example could be a where program A calls utility program B, and B returns
with LR on (or B is a OPM CL that closes completely).  If B is called
repetitively, and it closes each time, then the OS must resolve authority to
B each time B is called.

I have also heard (but havn't verified this myself) that if a program name
is a variable in an RPG program (as opposed to a declared literal), the OS
is forced to resolve to that object each time it is called.  The alleged
reason is that a variable name can be changed, so the authority checking is
forced.

hth,

jte



>
>Thanks in advance,
>John W. Cirocco
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--

John Earl       Lighthouse Software Inc.
8514 71st NW    Gig Harbor, WA 98335
253-858-7388    johnearl@lns400.com

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