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Conference star::wizards

Title: "ASK THE WIZARDS"
Moderator:QUARK::LIONEL
Created:Mon Oct 30 1995
Last Modified:Mon May 12 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1857
Total number of notes:3728

1657.0. "Open: increased sized of executable" by STAR::JKEENAN () Thu Mar 13 1997 16:04

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Date: Fri, 7 Mar 1997 11:16:19 -0500
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From: "VMS001::WWW"@vms001.das-x.dec.com (07-Mar-1997 1116)
To: [email protected], [email protected], [email protected]
Subject: Ask the Wizard: '[email protected]'
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Name: Stephen B. Young
Email Address: [email protected]
CPU Architecture: VAX and Alpha
Version: v 6.2
Questions: 

I have a program which employs the use of a pseudoterminal 
to monitor the keystrokes of a user.  Within this 
pseudoterminal another application is run.  When the user 
presses a certain key I then launch another application to 
display a certain message, let the user navigate through 
this program and when they exit will return them to 
exactly the position they were in beforehand.

Unfortunately this employs the use of 2 addition processes, 
one for the pseudoterminal and another for the spwaned 
program.  If I was to merge the two programs I would reduce 
the number of processes but I'm would like to know what impact
would that have on the performance of application that is
running in the pseudoterminal, already it is slightly 
impaired but what would happen in the size of the executable
is increased threefold ?
T.RTitleUserPersonal
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1657.1Many Factors InvolvedXDELTA::HOFFMANSteve, OpenVMS EngineeringFri Mar 14 1997 17:027
   Application performance is affected by many factors -- working set size,
   available free memory, other system activity, process quotas, etc.
   Increasing the size of an application may or may not affect the overall
   performance -- though I would definitely evaluate these and other factors
   called out in the OpenVMS performance manual.