Consider enabling cross origin isolated

[rniwa]

We should consider enabling cross origin isolated in browserbench.org so that performance.now will be high precision. See https://web.dev/articles/coop-coep for details.

[rniwa]

At this point, I don't think we're doing this for v3. Perhaps v3.1?

[julienw]

Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Embedder-Policy: require-corp

[rniwa]

Chrome 123.0.6312.107

Before

28.8 ± 1.5
28.6 ± 0.74
29.4 ± 0.70

After

28.8 ± 1.8
29.2 ± 0.70
28.8 ± 0.82

Firefox 124.0.2

Before

29.7 ± 1.8
29.0 ± 0.99
29.6 ± 0.84

After

29.4 ± 1.7
28.5 ± 0.91
29.8 ± 1.0

Safari 17.4 (19618.1.15.11.12)

Before

30.9 ± 1.3
31.0 ± 1.4
30.9 ± 1.1

After

30.7 ± 1.9
31.6 ± 1.2
31.2 ± 1.2

COOP-COEP-results.zip

[rniwa]

JetStream results

Chrome

Before

351.786
352.236
345.293

After

348.701
341.723
350.587

Firefox

Before

243.390
243.177
243.650

After

246.106
248.675
246.719

Safari

Before

355.951
363.205
364.135

After

359.015
359.251
361.544

[rniwa]

MotionMark results

Chrome

Before

5883.73 @ 60fps ±3.31%
5976.08 @ 60fps ±5.32%
5844.08 @ 60fps ±3.34%

After

5821.87 @ 60fps ±5.49
5981.02 @ 60fps ±5.12%
5876.91 @ 60fps ±3.63%

Firefox

Before

1890.53 @ 60fps ±9.10%
1942.99 @ 60fps ±2.42%
1923.33 @ 60fps ±2.21%

After

1927.66 @ 60fps ±2.15%
1945.62 @ 60fps ±6.45%
1922.74 @ 60fps ±4.08%

Safari

Before

5759.77 @ 60fps ±1.21%
5859.96 @ 60fps ±4.39%
5871.36 @ 60fps ±5.60%

After

5827.52 @ 60fps ±2.68%
5843.08 @ 60fps ±10.12%
5852.35 @ 60fps ±6.61%