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A good way to force this along is to have a champion for the work, and an automated burndown metric that random devs can watch and influence.

Mozilla is pretty good at the latter, cf. https://arewefastyet.com

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Seems like Safari is doing better than everything else if I'm reading the charts right.

> Why is Safari not tested on 32-bit machine?

>Safari defaults to 64-bit machines and doesn't need to worry about 32-bit anymore. Big pieces of their engine is 64-bit only. As a result showing Safari on 32-bit machines would give incorrect results.

Maybe this has something to do with it?

I don't think so. It's at the bottom for "Sunspider execution time" and "Octane score", but I would expect execution time to be "lower is better" (so Safari is best), but a score to be "higher is better" (so Safari is worst).

On "Octane score" you can see the vertical axis reads 0 at the top and 40000 at the bottom, so it seems it's always "lower is better" across the three graphs, which also means Safari is the fastest browser, if you consider just these metrics. I'm actually surprised...

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