{ "createdAt": "2026-09-21T17:27:47Z", "goVersion": "go1.25.14", "platform": "linux/arm64", "gomaxprocs": 4, "duration": "30s", "tls": true, "notes": [ "Loopback HTTP/1.1 health response, fixed requestId, optional TLS, no access logs or database.", "Each case starts a fresh server process; load client runs in the parent process on the same machine.", "Closed-loop concurrency; throughput is successful responses / actual elapsed time, including drain.", "Latency percentiles include failures and are histogram upper bounds with \u003c=6.25% rounding.", "Memory is server-only runtime.MemStats (not RSS or kernel socket memory); sampling interval 200ms.", "FileDescriptors is read from /proc/self/fd on Linux and omitted on other platforms.", "Idle memory measured after a forced GC; delta includes heap growth amortized across connections, excluding stacks.", "After is after closing clients and one forced GC; afterReclaim is a second GC to observe pooled-cache release.", "Native limits: 8192 connections / 4096 active requests. These cases do not benchmark overload rejection." ], "results": [ { "adapter": "nethttp", "scenario": "traffic", "concurrency": 128, "run": 1, "requests": 4442303, "errors": 0, "elapsedSeconds": 30.001232972, "requestsPerSecond": 148070.68109987277, "p50Millis": 0.589824, "p95Millis": 2.62144, "p99Millis": 3.670016, "serverBytesPerRequest": 4475.325703807237, "serverAllocsPerRequest": 49.07248492504901, "sampledPeakHeapAlloc": 7609472, "sampledPeakFileDescriptors": 135, "before": { "heapAlloc": 3340488, "heapInuse": 5988352, "stackInuse": 2195456, "totalAlloc": 9430136, "mallocs": 83639, "numGc": 5, "goroutines": 124, "connections": 122, "accepted": 122, "fileDescriptors": 135 }, "during": { "heapAlloc": 6485192, "heapInuse": 8716288, "stackInuse": 1998848, "totalAlloc": 19890182936, "mallocs": 218078486, "numGc": 5603, "goroutines": 130, "connections": 128, "accepted": 128, "fileDescriptors": 135 }, "after": { "heapAlloc": 2853976, "heapInuse": 5251072, "stackInuse": 884736, "totalAlloc": 19890213312, "mallocs": 218078820, "numGc": 5604, "goroutines": 2, "connections": 0, "accepted": 128, "fileDescriptors": 7 }, "afterReclaim": { "heapAlloc": 1745496, "heapInuse": 3686400, "stackInuse": 884736, "totalAlloc": 19890215312, "mallocs": 218078842, "numGc": 5605, "goroutines": 2, "connections": 0, "accepted": 128, "fileDescriptors": 7 } }, { "adapter": "native", "scenario": "traffic", "concurrency": 128, "run": 1, "requests": 4491731, "errors": 0, "elapsedSeconds": 30.000919805, "requestsPerSecond": 149719.77623337405, "p50Millis": 0.622592, "p95Millis": 2.62144, "p99Millis": 3.538944, "serverBytesPerRequest": 4807.806184297323, "serverAllocsPerRequest": 61.06011045630293, "sampledPeakHeapAlloc": 5859960, "sampledPeakFileDescriptors": 135, "before": { "heapAlloc": 2685024, "heapInuse": 5136384, "stackInuse": 2621440, "totalAlloc": 8854080, "mallocs": 83570, "numGc": 5, "goroutines": 125, "connections": 122, "accepted": 122, "fileDescriptors": 135 }, "during": { "heapAlloc": 3345480, "heapInuse": 5980160, "stackInuse": 1605632, "totalAlloc": 21604226160, "mallocs": 274349161, "numGc": 7802, "goroutines": 131, "connections": 128, "accepted": 128, "fileDescriptors": 135 }, "after": { "heapAlloc": 2764288, "heapInuse": 5341184, "stackInuse": 1605632, "totalAlloc": 21604248208, "mallocs": 274349494, "numGc": 7803, "goroutines": 3, "connections": 0, "accepted": 128, "fileDescriptors": 7 }, "afterReclaim": { "heapAlloc": 1654056, "heapInuse": 3506176, "stackInuse": 1605632, "totalAlloc": 21604258680, "mallocs": 274349519, "numGc": 7804, "goroutines": 3, "connections": 0, "accepted": 128, "fileDescriptors": 7 } }, { "adapter": "nethttp", "scenario": "idle", "concurrency": 512, "run": 1, "errors": 0, "idleHeapDelta": 7274360, "idleHeapPerConnection": 14207.734375, "before": { "heapAlloc": 1515704, "heapInuse": 3301376, "stackInuse": 425984, "totalAlloc": 3023896, "mallocs": 23663, "numGc": 1, "goroutines": 2, "connections": 0, "accepted": 0, "fileDescriptors": 7 }, "during": { "heapAlloc": 8790064, "heapInuse": 12066816, "stackInuse": 4718592, "totalAlloc": 29570320, "mallocs": 272972, "numGc": 9, "goroutines": 514, "connections": 512, "accepted": 512, "fileDescriptors": 519 }, "after": { "heapAlloc": 6138608, "heapInuse": 8765440, "stackInuse": 458752, "totalAlloc": 29675376, "mallocs": 274141, "numGc": 10, "goroutines": 2, "connections": 0, "accepted": 512, "fileDescriptors": 7 }, "afterReclaim": { "heapAlloc": 1820824, "heapInuse": 3825664, "stackInuse": 458752, "totalAlloc": 29677376, "mallocs": 274163, "numGc": 11, "goroutines": 2, "connections": 0, "accepted": 512, "fileDescriptors": 7 } }, { "adapter": "native", "scenario": "idle", "concurrency": 512, "run": 1, "errors": 0, "idleHeapDelta": 4689576, "idleHeapPerConnection": 9159.328125, "before": { "heapAlloc": 1520864, "heapInuse": 3284992, "stackInuse": 458752, "totalAlloc": 3029160, "mallocs": 23661, "numGc": 1, "goroutines": 3, "connections": 0, "accepted": 0, "fileDescriptors": 7 }, "during": { "heapAlloc": 6210440, "heapInuse": 9314304, "stackInuse": 8880128, "totalAlloc": 27150344, "mallocs": 271905, "numGc": 10, "goroutines": 515, "connections": 512, "accepted": 512, "fileDescriptors": 519 }, "after": { "heapAlloc": 6230688, "heapInuse": 9330688, "stackInuse": 491520, "totalAlloc": 27245184, "mallocs": 273078, "numGc": 11, "goroutines": 3, "connections": 0, "accepted": 512, "fileDescriptors": 7 }, "afterReclaim": { "heapAlloc": 1817296, "heapInuse": 3702784, "stackInuse": 491520, "totalAlloc": 27255960, "mallocs": 273107, "numGc": 12, "goroutines": 3, "connections": 0, "accepted": 512, "fileDescriptors": 7 } } ] }