[Public WebGL] WebKit 20-50% slower than Chrome/Minefield using large Float32Array Arrays

Stephen Bannasch [email protected]
Tue Feb 22 19:58:00 PST 2011

At 4:51 PM -0800 2/17/11, Kenneth Russell wrote:
>Just FYI, further optimizations are planned for typed arrays in V8.
>Currently certain optimizations are done for normal JavaScript arrays
>that aren't in place for typed arrays.

I'll say!

I just tested Chrome v10.0.648.82 and I'm getting 98 models steps per second (without rendering) using regular arrays: http://visual.local/seasons/earth/model2d-reg-arrays.html

and only 37 model steps per second using JavaScript Typed arrays: http://visual.local/seasons/earth/model2d.html

However Chrome is blowing away Minefield: 4.0b12pre (2011-02-22) Regular/Typed 13/12.2 and WebKit v79303 Regular/Typed: 24.7/14.5.
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