Closed Bug 218748 Opened 21 years ago Closed 19 years ago

Typing rate too slow.

Categories

(MailNews Core :: Composition, defect)

x86
Windows 2000
defect
Not set
normal

Tracking

(Not tracked)

RESOLVED EXPIRED

People

(Reporter: violin463, Assigned: sspitzer)

Details

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624

View the message as you type, the message can't keep up with your typing rate. 
Noticed there was a similar bug reported for the MAC platform but found nothing
under the Windows platform.

Reproducible: Always

Steps to Reproduce:
1.New Message
2.Fill in the header
3.Type the message

Actual Results:  
All works well except for the type rate.  The type rate is about 1 second per
character.  Way too slow!  

Expected Results:  
Would expect to see the massage displayed at the same rate as the user types, as
it does here.

Other than being slightly aggrevating, everything else works as good as or
better than expected.  Excellent browser!  Only problem noted is the type rate
in the email portion of the program.
Is this a problem in Composer too?  If so, it's a core editor bug, not a
mailnews one.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040113

Windows XP SP1
P4 1.6GHz
640 MB RAM

I can replicate this behaviour in Composer and Browser as well, so I assume it
is with the text engine that underlies all of the Mozilla components.

I have experienced this behaviour since at least Mozilla 1.3. It also seems
likely that these bugs are all the same:
<A href="http://bugzilla.mozilla.org/show_bug.cgi?id=218975">218975</A>
<A href="http://bugzilla.mozilla.org/show_bug.cgi?id=218748">218748</A>
<A href="http://bugzilla.mozilla.org/show_bug.cgi?id=172053">172053</A>
<A href="http://bugzilla.mozilla.org/show_bug.cgi?id=182150">182150</A> (This
one is Mac OSX, may be unrelated)

I think that this bug is the most well documented of that four:
<A href="http://bugzilla.mozilla.org/show_bug.cgi?id=218975">218975</A>

Here is how I reproduce the problem:
1. Open a compose window:
  CPU usage: 1%
  Available Mem: 400 MB

2. Start typing in the compose window. I hit keys as fast as I can, repetitively
(not typing words). No matter how fast I type, the text onscreen keeps up with
the speed at which I am typing. However, the CPU usage spikes to 100%. Memory
usage is unchanged.

3. Wait for the CPU usage to return to 1%.

4.a. Start typing again. Now the text appears on the compose window at a _much_
slower rate than before. The text in the compose window lags my typing by a
significant amount.

4.b. Alternatively, move the cursor to the middle of previously written text.
Now if I start typing, the text in the compose window is _really_ slow. It
definitely lags my typing. 

Note that this problem is definitely Mozilla specific. In MS Wordpad or MS Word
I cannot get the CPU usage to rise above 50% and the text onscreen always keeps
up with my typing, no matter how fast I hit keys.
Product: MailNews → Core
This is an automated message, with ID "auto-resolve01".

This bug has had no comments for a long time. Statistically, we have found that
bug reports that have not been confirmed by a second user after three months are
highly unlikely to be the source of a fix to the code.

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This bug has been automatically resolved after a period of inactivity (see above
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Status: UNCONFIRMED → RESOLVED
Closed: 19 years ago
Resolution: --- → EXPIRED
Product: Core → MailNews Core
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