{ "checks": { "allJourneysCompleted": "passed", "healthAfterEveryStage": "passed", "serverProcessIsolated": "passed", "streamedBytesVerified": "passed" }, "configuration": { "browseFileBytes": 262144, "concurrencyLevels": [ 1, 10, 25, 50, 100 ], "publishFileBytes": 16384, "waves": 3 }, "environment": { "availableParallelism": 18, "cpu": "Apple M5 Max", "node": "v24.15.0", "operatingSystem": "25.3.0", "platform": "darwin", "productVersion": "0.1.0" }, "generatedAt": "2026-09-03T16:14:07.859Z", "levels": [ { "browse": { "completedJourneys": 3, "concurrentUsers": 1, "eventLoop": { "maximumDelayMilliseconds": 22.2, "meanDelayMilliseconds": 16.38, "p95DelayMilliseconds": 22.2, "utilization": 0.714 }, "garbageCollection": "forced", "journeyLatency": { "count": 3, "maximumMilliseconds": 32.44, "meanMilliseconds": 19.7, "minimumMilliseconds": 12.39, "p50Milliseconds": 14.26, "p95Milliseconds": 32.44, "p99Milliseconds": 32.44 }, "journeysPerSecond": 50.72, "memory": { "peak": { "arrayBuffers": 10683485, "external": 20697760, "heapTotal": 231636992, "heapUsed": 133810296, "rss": 294764544 }, "peakRssDeltaBytes": 19202048, "retainedHeapDeltaBytes": 6883424, "settled": { "arrayBuffers": 312228, "external": 10326587, "heapTotal": 231751680, "heapUsed": 92116720, "rss": 294944768 }, "started": { "arrayBuffers": 303604, "external": 10317922, "heapTotal": 226246656, "heapUsed": 85233296, "rss": 275562496 } }, "profile": "browse", "serverCpu": { "systemMilliseconds": 4.35, "userMilliseconds": 61.97 }, "totalMilliseconds": 59.15, "totalRequests": 12, "waves": 3 }, "concurrentUsers": 1, "publish": { "completedJourneys": 3, "concurrentUsers": 1, "eventLoop": { "maximumDelayMilliseconds": 10.85, "meanDelayMilliseconds": 10.24, "p95DelayMilliseconds": 10.85, "utilization": 0.2387 }, "garbageCollection": "forced", "journeyLatency": { "count": 3, "maximumMilliseconds": 24.84, "meanMilliseconds": 20.35, "minimumMilliseconds": 17.9, "p50Milliseconds": 18.32, "p95Milliseconds": 24.84, "p99Milliseconds": 24.84 }, "journeysPerSecond": 49.13, "memory": { "peak": { "arrayBuffers": 609086, "external": 10623361, "heapTotal": 232275968, "heapUsed": 97639328, "rss": 295714816 }, "peakRssDeltaBytes": 704512, "retainedHeapDeltaBytes": 368072, "settled": { "arrayBuffers": 312332, "external": 10326691, "heapTotal": 232538112, "heapUsed": 92444840, "rss": 295763968 }, "started": { "arrayBuffers": 312332, "external": 10326690, "heapTotal": 232013824, "heapUsed": 92076768, "rss": 295010304 } }, "profile": "publish", "serverCpu": { "systemMilliseconds": 5.4, "userMilliseconds": 22.28 }, "totalMilliseconds": 61.07, "totalRequests": 9, "waves": 3 } }, { "browse": { "completedJourneys": 30, "concurrentUsers": 10, "eventLoop": { "maximumDelayMilliseconds": 22.04, "meanDelayMilliseconds": 13.46, "p95DelayMilliseconds": 21.56, "utilization": 0.9865 }, "garbageCollection": "forced", "journeyLatency": { "count": 30, "maximumMilliseconds": 111.71, "meanMilliseconds": 74.36, "minimumMilliseconds": 28.66, "p50Milliseconds": 74.71, "p95Milliseconds": 95.74, "p99Milliseconds": 111.71 }, "journeysPerSecond": 125.16, "memory": { "peak": { "arrayBuffers": 32595042, "external": 42609317, "heapTotal": 310067200, "heapUsed": 205822432, "rss": 445284352 }, "peakRssDeltaBytes": 149209088, "retainedHeapDeltaBytes": 1740584, "settled": { "arrayBuffers": 312332, "external": 10326691, "heapTotal": 234373120, "heapUsed": 94169120, "rss": 428867584 }, "started": { "arrayBuffers": 312332, "external": 10326690, "heapTotal": 232013824, "heapUsed": 92428536, "rss": 296075264 } }, "profile": "browse", "serverCpu": { "systemMilliseconds": 36.97, "userMilliseconds": 396.52 }, "totalMilliseconds": 239.69, "totalRequests": 120, "waves": 3 }, "concurrentUsers": 10, "publish": { "completedJourneys": 30, "concurrentUsers": 10, "eventLoop": { "maximumDelayMilliseconds": 21.66, "meanDelayMilliseconds": 12.16, "p95DelayMilliseconds": 17.69, "utilization": 0.676 }, "garbageCollection": "forced", "journeyLatency": { "count": 30, "maximumMilliseconds": 159, "meanMilliseconds": 120.29, "minimumMilliseconds": 96.91, "p50Milliseconds": 117.77, "p95Milliseconds": 158.95, "p99Milliseconds": 159 }, "journeysPerSecond": 80.7, "memory": { "peak": { "arrayBuffers": 3887274, "external": 13901549, "heapTotal": 234635264, "heapUsed": 139892880, "rss": 435929088 }, "peakRssDeltaBytes": 7045120, "retainedHeapDeltaBytes": 655160, "settled": { "arrayBuffers": 312332, "external": 10326691, "heapTotal": 234373120, "heapUsed": 94649288, "rss": 436011008 }, "started": { "arrayBuffers": 312332, "external": 10326690, "heapTotal": 234110976, "heapUsed": 93994128, "rss": 428883968 } }, "profile": "publish", "serverCpu": { "systemMilliseconds": 61.27, "userMilliseconds": 104.12 }, "totalMilliseconds": 371.77, "totalRequests": 90, "waves": 3 } }, { "browse": { "completedJourneys": 75, "concurrentUsers": 25, "eventLoop": { "maximumDelayMilliseconds": 37.52, "meanDelayMilliseconds": 15.39, "p95DelayMilliseconds": 22.27, "utilization": 0.9957 }, "garbageCollection": "forced", "journeyLatency": { "count": 75, "maximumMilliseconds": 205.89, "meanMilliseconds": 157.01, "minimumMilliseconds": 77.54, "p50Milliseconds": 166.02, "p95Milliseconds": 194.65, "p99Milliseconds": 205.89 }, "journeysPerSecond": 144.05, "memory": { "peak": { "arrayBuffers": 78381726, "external": 88396001, "heapTotal": 401620992, "heapUsed": 309064344, "rss": 602505216 }, "peakRssDeltaBytes": 166461440, "retainedHeapDeltaBytes": -3628472, "settled": { "arrayBuffers": 312332, "external": 10322543, "heapTotal": 232079360, "heapUsed": 90894656, "rss": 561315840 }, "started": { "arrayBuffers": 312332, "external": 10326690, "heapTotal": 234373120, "heapUsed": 94523128, "rss": 436043776 } }, "profile": "browse", "serverCpu": { "systemMilliseconds": 68.16, "userMilliseconds": 893.97 }, "totalMilliseconds": 520.67, "totalRequests": 300, "waves": 3 }, "concurrentUsers": 25, "publish": { "completedJourneys": 75, "concurrentUsers": 25, "eventLoop": { "maximumDelayMilliseconds": 28.36, "meanDelayMilliseconds": 12.06, "p95DelayMilliseconds": 17.96, "utilization": 0.5357 }, "garbageCollection": "forced", "journeyLatency": { "count": 75, "maximumMilliseconds": 368.64, "meanMilliseconds": 303.39, "minimumMilliseconds": 230.74, "p50Milliseconds": 312.37, "p95Milliseconds": 358.65, "p99Milliseconds": 368.64 }, "journeysPerSecond": 81.31, "memory": { "peak": { "arrayBuffers": 4545082, "external": 14823263, "heapTotal": 242040832, "heapUsed": 147667880, "rss": 563249152 }, "peakRssDeltaBytes": 2080768, "retainedHeapDeltaBytes": 723592, "settled": { "arrayBuffers": 312332, "external": 10322543, "heapTotal": 232341504, "heapUsed": 91346120, "rss": 563249152 }, "started": { "arrayBuffers": 312332, "external": 10322542, "heapTotal": 231817216, "heapUsed": 90622528, "rss": 561168384 } }, "profile": "publish", "serverCpu": { "systemMilliseconds": 158.32, "userMilliseconds": 266.43 }, "totalMilliseconds": 922.36, "totalRequests": 225, "waves": 3 } }, { "browse": { "completedJourneys": 150, "concurrentUsers": 50, "eventLoop": { "maximumDelayMilliseconds": 73.53, "meanDelayMilliseconds": 20.32, "p95DelayMilliseconds": 44.63, "utilization": 0.9977 }, "garbageCollection": "forced", "journeyLatency": { "count": 150, "maximumMilliseconds": 577.51, "meanMilliseconds": 330.63, "minimumMilliseconds": 116.66, "p50Milliseconds": 340.44, "p95Milliseconds": 511.44, "p99Milliseconds": 569.83 }, "journeysPerSecond": 134.89, "memory": { "peak": { "arrayBuffers": 108771568, "external": 118780260, "heapTotal": 434782208, "heapUsed": 349937760, "rss": 686571520 }, "peakRssDeltaBytes": 123322368, "retainedHeapDeltaBytes": -1465624, "settled": { "arrayBuffers": 312332, "external": 10321108, "heapTotal": 232882176, "heapUsed": 89524408, "rss": 640679936 }, "started": { "arrayBuffers": 312332, "external": 10322542, "heapTotal": 232341504, "heapUsed": 90990032, "rss": 563249152 } }, "profile": "browse", "serverCpu": { "systemMilliseconds": 111.44, "userMilliseconds": 1850.34 }, "totalMilliseconds": 1111.99, "totalRequests": 600, "waves": 3 }, "concurrentUsers": 50, "publish": { "completedJourneys": 150, "concurrentUsers": 50, "eventLoop": { "maximumDelayMilliseconds": 52.33, "meanDelayMilliseconds": 12.13, "p95DelayMilliseconds": 20.92, "utilization": 0.4509 }, "garbageCollection": "forced", "journeyLatency": { "count": 150, "maximumMilliseconds": 703.76, "meanMilliseconds": 557.53, "minimumMilliseconds": 387.14, "p50Milliseconds": 571.36, "p95Milliseconds": 613.55, "p99Milliseconds": 699.72 }, "journeysPerSecond": 88.62, "memory": { "peak": { "arrayBuffers": 6074028, "external": 16111574, "heapTotal": 261718016, "heapUsed": 167303696, "rss": 644186112 }, "peakRssDeltaBytes": 3506176, "retainedHeapDeltaBytes": 1218024, "settled": { "arrayBuffers": 312332, "external": 10321108, "heapTotal": 233668608, "heapUsed": 90436144, "rss": 644186112 }, "started": { "arrayBuffers": 312332, "external": 10321107, "heapTotal": 232357888, "heapUsed": 89218120, "rss": 640679936 } }, "profile": "publish", "serverCpu": { "systemMilliseconds": 347.64, "userMilliseconds": 485.28 }, "totalMilliseconds": 1692.65, "totalRequests": 450, "waves": 3 } }, { "browse": { "completedJourneys": 300, "concurrentUsers": 100, "eventLoop": { "maximumDelayMilliseconds": 82.97, "meanDelayMilliseconds": 25.32, "p95DelayMilliseconds": 57.64, "utilization": 0.9985 }, "garbageCollection": "forced", "journeyLatency": { "count": 300, "maximumMilliseconds": 1910.46, "meanMilliseconds": 635.64, "minimumMilliseconds": 166.13, "p50Milliseconds": 567.24, "p95Milliseconds": 1314.97, "p99Milliseconds": 1844.62 }, "journeysPerSecond": 140, "memory": { "peak": { "arrayBuffers": 140694934, "external": 150703626, "heapTotal": 494157824, "heapUsed": 420113000, "rss": 797687808 }, "peakRssDeltaBytes": 153501696, "retainedHeapDeltaBytes": 1194256, "settled": { "arrayBuffers": 312332, "external": 10321108, "heapTotal": 234717184, "heapUsed": 90971688, "rss": 740114432 }, "started": { "arrayBuffers": 312332, "external": 10321107, "heapTotal": 232882176, "heapUsed": 89777432, "rss": 644186112 } }, "profile": "browse", "serverCpu": { "systemMilliseconds": 206.04, "userMilliseconds": 3538.24 }, "totalMilliseconds": 2142.86, "totalRequests": 1200, "waves": 3 }, "concurrentUsers": 100, "publish": { "completedJourneys": 300, "concurrentUsers": 100, "eventLoop": { "maximumDelayMilliseconds": 57.48, "meanDelayMilliseconds": 12.27, "p95DelayMilliseconds": 22.46, "utilization": 0.3355 }, "garbageCollection": "forced", "journeyLatency": { "count": 300, "maximumMilliseconds": 1321.43, "meanMilliseconds": 1024.1, "minimumMilliseconds": 737.7, "p50Milliseconds": 1047.6, "p95Milliseconds": 1096.48, "p99Milliseconds": 1294.88 }, "journeysPerSecond": 96.64, "memory": { "peak": { "arrayBuffers": 8590312, "external": 18607887, "heapTotal": 308903936, "heapUsed": 198363512, "rss": 749355008 }, "peakRssDeltaBytes": 9224192, "retainedHeapDeltaBytes": 2118272, "settled": { "arrayBuffers": 312332, "external": 10321108, "heapTotal": 235765760, "heapUsed": 92579784, "rss": 749355008 }, "started": { "arrayBuffers": 312332, "external": 10321107, "heapTotal": 234717184, "heapUsed": 90461512, "rss": 740130816 } }, "profile": "publish", "serverCpu": { "systemMilliseconds": 707.63, "userMilliseconds": 752.88 }, "totalMilliseconds": 3104.36, "totalRequests": 900, "waves": 3 } } ], "server": { "measurementBoundary": "compiled child server process", "pid": 59878, "startupMilliseconds": 486.28 }, "summary": { "finalRetainedHeapDeltaBytes": 7346488, "maximumPeakHeapUsedBytes": 420113000, "maximumPeakRssBytes": 797687808 }, "warnings": [ "Server peak RSS exceeded 512 MiB; do not size a production process below the measured workload without a provider-specific capacity run." ] }