On 05/27/2013 03:45 PM, Josh Matthews wrote:
On 05/27/2013 02:25 PM, Josh Matthews wrote:
The following script (test_hammer_layout.html) can now run in Servo, so
I've finally been able to begin obtaining baseline performance data.
Note that this is with the exiting Rust scheduler, not Brian's new one:
>var divs = document.getElementsByTagName("div");
>var div = divs[0];
>
>var count = 1000000;
>var start = new Date();
>for (var i = 0; i < count; i++) {
> div.setAttribute('id', 'styled');
> div.getBoundingClientRect();
>}
>var stop = new Date();
>window.alert((stop - start) / count * 1e6);
>window.close();
This yields 1239493.
Cheers,
Josh
For the sake of contrast, a current Firefox nightly shows me 1319.
And interestingly enough, the same test with the
div.getBoundingClientRect call removed yields a marginally better 1162253.
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