Mozilla exhibits very poor scalability when rendering nested tables, such as the excessively marked-up pages of http://www.kuro5hin.org/. When viewing the URL http://www.kuro5hin.org/?op=displaystory;sid=2000/10/20/16261/167 Mozilla requires 1 minute, 12 seconds o render the page, while Netscape 4.75 requires only six seconds. The markup is 230 KB long. If you use the form on the page to change the display to "Nested", Mozilla spends over ten minutes rendering the page (before I killed it), while Netscape 4.75 requires 16 seconds to do the job. It seems we have some code whose scalability is significantly worse than linear. These test cases are not pathological inventions, they are sites that exist in the wild.
Reassigning to karnaze.
Target Milestone: --- → mozilla0.9
*** Bug 64140 has been marked as a duplicate of this bug. ***
This is highly likely to be a duplicate of bug 61684. That one has more info, so you might like to migrate to that one?
Why not a dupe of bug 60494: "Mozilla is extremly slow rendering this page lots of <font> tags"?
I compiled with DEBUG_TABLE_REFLOW_TIMING and found that the tables are not to blame for the excessive slowdown. This is after the most recent checkins improving the performance of tables. I'm marking this a dup of bug 61684 based on comments and the similar url. I do know that nested tables are still causing performance problems in many cases, but this is not one of them. *** This bug has been marked as a duplicate of 61684 ***
Status: NEW → RESOLVED
Last Resolved: 18 years ago
Resolution: --- → DUPLICATE
Verifications. Tests (if necessary) were done with 2001052504 on Windows 2000. Please forgive the spam.
Status: RESOLVED → VERIFIED
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