118167 - Viewing page source takes a lot of time to show it and CPU load is 100%

Status: VERIFIED DUPLICATE of bug 84707

(SeaMonkey :: General, defect)

Description

[Dariusz J. Garbowski]

From Bugzilla Helper:
User-Agent: Mozilla/4.75 [en] (Windows NT 5.0; U)
BuildID:    2001010303

Viewing page source with syntax highlight takes long time to show it (and "eats" 
CPU power) even on Pentium4/1.5 GHz. Syntax highlight off, and everything is ok.

Other interesting behaviour is that when the source is rendered mouse pointer is 
"jumping" instead of smooth moving, but... when the source is scrolled to the 
bottom - mouse pointer moves ok.

The page size is about 719 KB.

[There are other strange things about this webpage and Mozilla, but not 
connected with this bug]


Reproducible: Always
Steps to Reproduce:
1.Go to http://www.scan.co.uk/allprice.htm
2.Right mouse button -> view page source (be sure 
3.Waaaait...
4.Try to move your mouse pointer...

Actual Results:  Waiting time is long (more than 50 seconds on Pentium 4/1.5 
GHz!).
Mouse pointer "jumps" over source code.
CPU load is 100% when loading page.

Comment 1

[Boris Zbarsky [:bzbarsky]]

rjesup, could you possibly profile this?

Comment 2

[Randell Jesup [:jesup] (needinfo me)]

Dup.  View Source is still slow.  Still needs work.  I'll do a jprof and attach
it to bug 84707

*** This bug has been marked as a duplicate of 84707 ***

Comment 3

[Boris Zbarsky [:bzbarsky]]

OK.  The biggest time-sink on this page was fixed in bug 109428.  The
next-biggest one is already covered by bug 98118.  Marking verified as dup of
the tracker bug of view-source perf issues.