837898 - Provide a way for theme developers to know about gradient cache hits/misses

Status: RESOLVED WORKSFORME

(Core :: Graphics, enhancement)

Description

[Matthew N. [:MattN]]

It would be useful to know about gradient cache hits and misses so that theme developers can optimize for hit rate. 

I believe this is only possible with a custom patch or logging from a debugger. Perhaps such a mechanism can be in-tree for debug builds? Perhaps a more generally applicable pref to output various gfx performance stats would be useful?

Comment 1

[Avi Halachmi (:avih)]

Attachment: Print gradient patterns cache hits/misses to console

As a temporary solution, use this patch.
- Set the pref toolkit.layers.gradientPatternsCache.debug = true.
- Restart the browser with "-console".
- Gradient patterns cache hits will print a "+", misses will print a "-".

Comment 2

[Avi Halachmi (:avih)]

Maybe this should be realized with the profiler? e.g. add markers on cache misses?

Comment 3

[Benoit Girard (:BenWa)]

I'm planning to add a way to get timestamped logging into profiler for this sort of data.

Feel free to use markers for now if you want the data.

Comment 4

[Gregory Pappas [:gregp]]

• Gradients are super fast now
• The Firefox profiler can provide this information now