Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!samsung!usc!chaph.usc.edu!aludra.usc.edu!blood From: blood@aludra.usc.edu (Brian Blood) Newsgroups: comp.sys.mac.system Subject: Re: How to use HeapFixer Message-ID: <9641@chaph.usc.edu> Date: 7 May 90 07:21:30 GMT References: Sender: news@chaph.usc.edu Organization: University of Southern California, Los Angeles, CA Lines: 53 From blood Mon May 7 00:21:14 1990 To: /home/chaph9/blood/.article How to use Heap Fixer 101 ------------------------- Ok, listen close, I'm only going to say this once! Decide whether you use MultiFinder more than you don't because for some reason I haven't bothered to try and figure out when you goto MF from F, then system heap changes, sometimes up, sometimes down. Second, turn off your RAM cache and reboot. I will explain later. Now run HeapFixer and get to the dialog box. It should say what the heap is set to and how much is free. if it is not 25% of the total used then input a number into the box that will add the appropriate memory to the heap to get 25%. Lets say that it said the heap was currently at 300 and there was only 40K free You would want to have the heap set to @ 60K more than normal. Then reboot. Check the AtF box for the graph, does it look like 25% is free. Well run HeapFixer anyway. and check what it says against what you saw in the Finder. Adjust accordingly. The process is very simple it just takes a little playing around with to get it right. ===>Why should I turn my RAM cache off?<== Well when you have a RAM cache running it resides in the System heap. It is not dynamic(i.e. doesn't change) it is tacked on the system heap. It is sometimes confusing when you have the RAM cache running and you try and look at the graph and you see that the system heap doesn't have 25% free when it actually does. It is just simpler. After yusing HeapFixer you can go back and RAM cache to your heart's content, it doesn't affect the setting you were trying to make, it just looks like it. See the problem with system heaps and reason for using HeapFixer is that when you use a lot of INITs, it keeps adding to the system heap, without maintaining a good 25% buffer, not like it would if you ran noINITs anyway. HeapFixer just helps you create a saftey buffer for the SH to grow into should it need it even after loading all your INITs. Any questions, call me! +-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/ Brian Blood Univ. of Southern Cal. Underground Mac Dude INTERNET: blood@usc.edu Business Hours: 20/24 daily Disclaimer: 'Vuja De'--None of this has ever happened! SnailMail: 333 Prestonwood DR #2506 AT&TLink: USC--(213)745-2760 Richardson, TX 75081 HomeSweetHome--(214)907-2943 'Pain don't hurt'-'Roadhouse' 'We don't need no stinkin' badges!'-BS +-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/+-*/