168033 - resizing of jpeg takes way too much time

Status: RESOLVED EXPIRED

(Core :: Graphics: ImageLib, defect)

Description

[Charles R. Hunter]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826

In the URL included, there are several moderate sized jpeg files
( 640x480 ) When you visit the page the HTML calls for the files to be resized.
This takes an extraordinary amount of time ( 3-4 seconds ) on a Pentium 4 2.0GHz
Simply viewing the images seperate from the page displays the files very quickly.
I'm not 100% sure that the resizing is the culprit. There is alot of javascript
in there and turning off java script does seem to speed the page up but only
trivially... maybe 1 second difference. Anyway. It looks ot me that the resizing
is the bottleneck.  There is no slowdown in I.E. (grumble grumble )

Reproducible: Always

Steps to Reproduce:
1.go to the webpage in Mozilla
2.contrast to I.E.
3.

Actual Results:  
Very slow rendering of all pictures. Even when hitting back button and
and hten forward again. very slow

Expected Results:  
The resizing should not have taken so long, and/or going back to the
pacge a seocnd time should have cached the resized image.

Comment 1

[Charles R. Hunter]

http://www.francepark.com/scuba.htm

Comment 2

[Boris Zbarsky [:bzbarsky]]

Page loads nearly instantly on a P4 1.7Ghz linux machine...

Comment 3

[Charles R. Hunter]

Forgot to mention that this bug is windows specific.

Comment 4

[Charles R. Hunter]

It also appears to be P4 specific. I tried it on a K6-2 system and
had no problems but saw the same results on anoter P4. Probably
a compile time optimization gone awry?

Comment 5

[Michael Gabriel]

cant see that problem on that page, but can reproduce it on 
http://forum.mokkels.nl/cgi-bin/gallery.pl?hold=1&action=

scaled and loaded images lag alot while loading and even AFTER their loaded !?

Comment 6

[Gervase Markham [:gerv]]

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.

While your input is very important to us, our resources are limited and so we
are asking for your help in focussing our efforts. If you can still reproduce
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If it is not a problem any longer, you need take no action. If this bug is not
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Comment 7

[Gervase Markham [:gerv]]

This bug has been automatically resolved after a period of inactivity (see above
comment). If anyone thinks this is incorrect, they should feel free to reopen it.