-Ztimings can create gigantic canvases

[est31]

One of my projects is a bit bigger and takes a long time to compile (17m 15s for total of 326 dependencies). When I ran -Ztimings on it, it outputted a file that allocated a gigantic canvas.

In Firefox, the canvas is simply not shown. Instead, the console has an NS_ERROR_FAILURE pointing to this js line and this can be found in Firefox stdout:

[GFX1-]: Failed to allocate a surface due to invalid size (CDT) Size(20780,8842)

So it's trying to allocate a buffer of size 20780x8842.

Chrome is trying to render the canvas but fails due to memory constraints on the computer I was trying it on (3 GB was available at the time of opening).

IDK what a good remedy would be. Maybe using native html items instead?

[est31]

Hmm dupe of #7388