newbie. morphic is sluggish on my PC

Pennell, David DPennell at quallaby.com
Tue Jan 30 00:52:29 UTC 2001


[snip]

> Then I tried looking at the code in the MessageTallys that 
> were just posted.  I tried changing WorldState>>initialize so 
> that the MinCycleLapse is 40 instead of 20 (and 
> re-initializing), expecting CPU usage to be cut in half if I 
> were lucky.  But it dropped down to 1%!  Squeak's 
> responsiveness still seemed fine from what I could tell, too, 
> although this is a pretty fast machine.  Trying some 
> different numbers revealed that there's a big jump (at least 
> on my PC) from setting MinCycleLapse to 31 versus 33.  This 
> must be some sort of magic threshold at which the VM starts 
> churning events, or something, I don't know.

Thanks, Bob Arning sent me a fix for this yesterday.  I saw similar 
results - the CPU usage dropped to around 1%.  Bob said he was going 
to drop it in the update stream.

FWIW - MVC still takes all of the machine.

-david





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