WPT
wpt / workers / worker-performance.worker.html
Spec: https://html.spec.whatwg.org/multipage/workers.html ↗
Runs: Chrome 155.0.8039.0 (wpt@ffab1bde3, 2026-09-03) | Firefox 157.0a1 (wpt@5e776f019, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-a9df8 (wpt@9b4cabf6d, 2026-09-03) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 14/14 | 14/14 | 14/14 | 14/14 | 13/14 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Can use performance.now in workers | PASS | PASS | PASS | PASS | PASS | — |
| Can use performance.mark in workers | PASS | PASS | PASS | PASS | PASS | — |
| Can use performance.measure in workers | PASS | PASS | PASS | PASS | PASS | — |
| Can use performance.getEntriesByName in workers | PASS | PASS | PASS | PASS | PASS | — |
| Can use performance.getEntriesByType in workers | PASS | PASS | PASS | PASS | FAIL | — |
| Performance marks and measures seem to be working correctly in workers | PASS | PASS | PASS | PASS | PASS | — |
| Can use clearMarks and clearMeasures in workers | PASS | PASS | PASS | PASS | PASS | — |
| Resource timing seems to work in workers | PASS | PASS | PASS | PASS | PASS | — |
| performance.clearResourceTimings in workers | PASS | PASS | PASS | PASS | PASS | — |
| performance.setResourceTimingBufferSize in workers | PASS | PASS | PASS | PASS | PASS | — |
| performance.timing is not available in workers | PASS | PASS | PASS | PASS | PASS | — |
| performance.navigation is not available in workers | PASS | PASS | PASS | PASS | PASS | — |
| performance.toJSON is available in workers | PASS | PASS | PASS | PASS | PASS | — |
| There are no navigation type performance entries in workers | PASS | PASS | PASS | PASS | PASS | — |