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Conference bulova::decw_jan-89_to_nov-90

Title:DECWINDOWS 26-JAN-89 to 29-NOV-90
Notice:See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit
Moderator:STAR::VATNE
Created:Mon Oct 30 1989
Last Modified:Mon Dec 31 1990
Last Successful Update:Fri Jun 06 1997
Number of topics:3726
Total number of notes:19516

3136.0. "image tuning?" by LNGBCH::SCHNEIDER (pluto) Thu Jul 26 1990 01:06

    As always, we will have customers who feel the need to do their own
    tuning on VMS....   I have a customer who would like to know how to set
    the working set (basically the PQL) parameters for the various
    DECwindows images....   this doesn't appear to be documented anywhere. 
    Is this an unsupported activity?  if so can it still be done?

    any input would be appreciated.
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3136.1keep hands off and let AUTOGEN do its jobPSW::WINALSKICareful with that VAX, EugeneFri Jul 27 1990 16:546
I tried playing with this, myself, and I rapidly came to the conclusion that
AUTOGEN knew far better how to tune system parameters for DECwindows than I did.
Seriously.  I have never been a big AUTOGEN fan (having been burnt badly by it
in its early days), but this is one case where it really works as advertised.

--PSW
3136.2...LNGBCH::SCHNEIDERplutoSat Jul 28 1990 13:249
    I agree with you %1000.  This guy, however wants to get into his
    own mess and nothing I seem to say will deter him.  If there is no
    way to easily setup the run time parameters for the various executables
    then that is an acceptable answer.  (for examplles if they are set up
    using a creat process system call etc..) but if there is a way to 
    chang ethem, I'd rather let the account determine that they are wasting
    their time rather than trying to convince them of it..
    
    greg
3136.3PSW::WINALSKICareful with that VAX, EugeneSat Jul 28 1990 18:017
You can check with official support channels if you need an official answer.
This is the answer that I would give:  a lot of performance testing and
experimentation was used to derive the parameters and formulae that AUTOGEN
uses to tune workstations.  Those settings are the recommended ones and at the
very least represent a good starting-off point for any attempts at hand-tuning.

--PSW
3136.4don't call us...TOOLEY::B_WACKERMon Jul 30 1990 15:498
You can look through all the startup .com's for DW and find all the 
ones he can change directly.  Some others probably default to pql 
values on creprc, but most of the ones I've come across in source 
explicitly determine the major ones.  The source is available and 
changing creprc params is unsupported, so wish him luck with his 
independent investigations.

Bruce