Reproducible experiment
WebVTT timing parser scale
Method
Generate ordered synthetic cues and measure complete timing-line parsing.
Result
{
"id": "webvtt-parser-scale",
"status": "PASS",
"metrics": {
"cues_generated": 10000,
"cues_parsed": 10000,
"issues": 0,
"elapsed_ms": 21.374,
"cues_per_second": 467862.52
}
}Environment
{
"node": "v24.14.1",
"platform": "win32",
"arch": "x64",
"cpu_model": "Intel(R) Core(TM) Ultra 7 155H",
"logical_cpus": 22,
"total_memory_gib": 31.5
}Limitations
The workload excludes styling, regions and cue-text DOM construction.