616604 - Poor SVG performance

Status: RESOLVED DUPLICATE of bug 609361

(Core :: SVG, defect)

Description

[scalablev]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12

Performance is poor with detailed SVGs.

Reproducible: Always

Steps to Reproduce:
1. Visit http://kart.nois.no/pub/oye/ie9/opacityPerformance.svg and drag the blue rectangle.
2. Notice sluggishness.
3. Compare with Opera or the Adobe SVG Viewer.
Actual Results:  
Sluggishness.

Expected Results:  
Smooth movement.

Comment 1

[Robert Longson [:longsonr]]

This is basically the same as your other document. You need to reduce it to something simple if we're to progress it.

Comment 2

[scalablev]

The problem only occurs with complex SVGs, so I don't see the point of reducing it to something simple.

I hope you can use the example to get an "interactive feel" of the (lack of) performance.

Comment 3

[Robert Longson [:longsonr]]

I have such a feel. You've given me a haystack and said that there's a needle in there somewhere though. If you reduce it there's a massively better chance of this being fixed.

Comment 4

[Boris Zbarsky [:bzbarsky]]

For what it's worth, one possible reduction approach here is to delete half the file, make two copies of the rest in the same file, and see if it's still slow.  If so, that's great, and you keep doing that.  The end goal being lots of copies of one thing that happens to be slow...