WPT
wpt / user-timing / measures.html
Spec: User Timing ↗
Runs: Chrome 155.0.8038.0 (wpt@397d01d8e, 2026-09-02) | Firefox 157.0a1 (wpt@397d01d8e, 2026-09-02) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-5f6fa (wpt@b1a7025f8, 2026-09-02) | Servo Servo 0.5 (wpt@2ccd2cbf8, 2026-09-01) | Blitz 7727414ca (wpt@a95401e4e, 2026-09-02)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 119/119 | 119/119 | 119/119 | 119/119 | 119/119 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| There should be 0 entries returned. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.There should be 3 entries. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 0. Entry "" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 1. Entry "aaa" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 1. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 1. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 1. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 2. Entry "2" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 2. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 2. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all entries.Entry_list 2. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "".There should be 1 entries. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "".Entry_list 0. Entry "" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "aaa".There should be 1 entries. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "aaa".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "aaa".Entry_list 0. Entry "aaa" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "aaa".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "aaa".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "aaa".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "2".There should be 1 entries. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "2".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "2".Entry_list 0. Entry "2" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "2".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "2".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| First loop: checking entry of name "2".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.There should be 6 entries. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 0. Entry "" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 1. Entry "aaa" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 1. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 1. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 1. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 2. Entry "" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 2. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 2. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 2. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 3. Entry "aaa" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 3. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 3. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 3. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 4. Entry "2" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 4. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 4. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 4. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 5. Entry "2" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 5. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 5. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Checking all doubly measured entries.Entry_list 5. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".There should be 2 entries. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entry_list 0. Entry "" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entry_list 1. Entry "" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entry_list 1. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entry_list 1. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 0: checking entry of name "".Entry_list 1. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".There should be 2 entries. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entry_list 0. Entry "aaa" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entry_list 1. Entry "aaa" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entry_list 1. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entry_list 1. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 1: checking entry of name "aaa".Entry_list 1. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".There should be 2 entries. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entry_list 0. Entry "" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entry_list 1. Entry "" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entry_list 1. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entry_list 1. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 2: checking entry of name "".Entry_list 1. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".There should be 2 entries. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entry_list 0. Entry "aaa" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entry_list 1. Entry "aaa" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entry_list 1. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entry_list 1. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 3: checking entry of name "aaa".Entry_list 1. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".There should be 2 entries. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entry_list 0. Entry "2" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entry_list 1. Entry "2" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entry_list 1. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entry_list 1. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 4: checking entry of name "2".Entry_list 1. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".There should be 2 entries. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entries in entrylist should be in order. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entry_list 0. Entry "2" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entry_list 0. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entry_list 0. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entry_list 0. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entry_list 1. Entry "2" should be one that we have set. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entry_list 1. entryType should be "measure". | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entry_list 1. startTime should be a number. | PASS | PASS | PASS | PASS | PASS | — |
| Second loop step 5: checking entry of name "2".Entry_list 1. duration should be a number. | PASS | PASS | PASS | PASS | PASS | — |