Revolution is very slow to refresh fields. How can I speed it up?

[Eric Colvin]

Thanks a lot, Jim.

Mystery solved.

All the best.


Eric


> From: Jim Hurley <jhurley at infostations.com>
> Reply-To: How to use Revolution <use-revolution at lists.runrev.com>
> Date: Thu, 6 Apr 2006 06:49:45 -0700
> To: <use-revolution at lists.runrev.com>
> Subject: Re: Revolution is very slow to refresh fields.  How can I speed  it
> up?
> 
>> 
>> Message: 26
>> Date: Thu, 30 Mar 2006 02:12:00 +0100
>> From: Eric Colvin <EricMColvin at telus.net>
>> Subject: Revolution is very slow to refresh fields.  How can I speed
>> it up?
>> To: <use-revolution at lists.runrev.com>
>> Message-ID: <C050EEF0.2174A%EricMColvin at telus.net>
>> Content-Type: text/plain; charset="ISO-8859-1"
>> 
>> I¼ve just started playing with Revolution ‚ having been a passionate
>> enthusiast for Hypercard in a previous life.
>> 
>> One thing I¼ve hit upon early on that annoys me a little.  Though Revolution
>> is far newer, and loads into memory rather than writing to disk, it is still
>> way slower at certain things ‚ such as refreshing text fields ‚ than
>> Hypercard ever was.
>> 
>> I wrote the following counting routine (as a speed test to measure the
>> difference between writing to a variable and writing to a field).  However,
>> what I learned was that ‚ on my computer, at any rate ‚ Revolution only
>> refreshes its text fields slightly more than once a second. When I run the
>> same script on Hypercard, the counting field whirs through changes faster
>> than a gas pump - with every new number registered on screen.  Revolution
>> only shows me about one figure in every twenty five or so ‚ despite the fact
>> that the routine tells the field to display every consecutive number from 1
>> to 300.
>> 
>> Just add this script to a locked text field, and click on it, to see what
>> I¼m talking about:
>> 
>> on mouseup
>>   -- COUNT TO 300
>>   put the ticks into startTime
>>   repeat with i = 1 to 300
>>     put 1 + line 1 of me into line 1 of me
>>   end repeat
>>   put the ticks - starttime into stopTime1
>>   put stopTime1 into word 1 of line 3 of me
>>   put the ticks into startTime
>>   put me into testVar
>> 
>>   -- NOW JUST SHOW MULTIPLES OF TEN
>>   repeat with i = 1 to 300
>>     put 1 + line 2 of testVar into line 2 of testVar
>>     if i mod 10 = 0 then put line 2 of testVar into line 2 of me
>>   end repeat
>>   put line 2 of testVar into line 2 of me
>>   put the ticks - startTime into stopTime2
>>   put stopTime1 & " : " & stopTime2 into line 3 of me
>> end mouseup
> 
> 
> Eric,
> 
> You didn't mention what operating system you are
> using. If it is OS X then check the following (in
> the message box):
> 
>     go stack url "http://home.infostations.net/jhurley/DisplayProblemsOSX.rev"
> 
> Mark Waddingham says that this screen refresh
> issue will be address in the next upgrade. In the
> meantime you might insert "unlock screen" or
> "wait 0 millisec"
> 
> Jim
> 
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