Closed Bug 17265 Opened 20 years ago Closed 20 years ago
Displaying lots of images w/o WIDTH & HEIGHT tags is very slow
Loading this page hangs the current build. Note that on 4.X with image loading turned off this page makes major memory allocations. Not sure if they are related.
The page isn't hanging. It's just taking an enormously large amount of time, best measured in lifetimes and not seconds. The page has 40 images without width/height tags. That means we end up generating 40 incremental reflow commands. That might not be so bad except that they're all inside of a table and that means lots of reflow. Marking as a PERF bug. Note that the general table incremental reflow performance issue is covered by bug #11702. This bug demonstrates the need for coalescing of reflow commands. If we did that we would cut way down on the number of incremental reflows we perform, because many of the images are the same
*** Bug 18363 has been marked as a duplicate of this bug. ***
*** Bug 16124 has been marked as a duplicate of this bug. ***
Summary: Hang loading web page → Displaying lots of images w/o WIDTH & HEIGHT tags is very slow
[clarified title so that folks can more easily find the bug]
Seems to load better with the latest build, but this shows the need for reflow command coalescing.
Setting milestone to M13 and accepting bug...
Changing url because the earlier one's content got archived. This new url points to that archive.
Moving non-blockers for beta to M15...
Page loading on these pages is more bearable now. Marking this bug WORKSFORME. Note that we only do reflow command coalescing within block and inlines at this time so this bug is not helped by that work. When we start coalescing within tables also, pages like these should load even faster.
Performance is better. Tested with the April 21 build.
Status: RESOLVED → VERIFIED
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