[plt-scheme] Re: Appalling performance of DrScheme on Windows

From: Stephen Bloch (sbloch at adelphi.edu)
Date: Tue Jun 20 16:26:55 EDT 2006

I wrote:
>>I started DrScheme 350 on my G4 iMac this morning, did nothing with 
>>it, spent several hours using Firefox, Eudora, Quicken, Adobe 
>>Reader, etc, and brought it to the foreground.  It took a second or 
>>two to come up, a second or two to echo my typed left-parenthesis, 
>>and about seven seconds of garbage collection to evaluate (+ 2 2). 
>>Mac OS 10.4.6, 512 MB RAM.

Matthias replied:
>In contrast:
>By sheer coincidence I started drscheme this morning on my OS X 
>desktop, ran it once, watched soccer, talked to my dean, ate lunch, 
>brought it to the foreground in response to your message and had an 
>instantaneous response for opening a tab and typing ().

Which seems to suggest that the heavy use of several other large apps 
in the interim is a significant factor.

>This is not to say that we don't have a memory performance problem. 
>It is just extremely difficult to repeat and to fix.

I'm sure Matthias can think of a way to use several large apps other 
than DrScheme for several hours :-)

					Stephen Bloch
					sbloch at adelphi.edu

Posted on the users mailing list.