{ "createdAt": "2026-09-21T17:29:24Z", "goVersion": "go1.25.14", "platform": "linux/arm64", "gomaxprocs": 4, "duration": "30s", "tls": false, "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": 4456189, "errors": 0, "elapsedSeconds": 30.001393348, "requestsPerSecond": 148532.7347403705, "p50Millis": 0.589824, "p95Millis": 2.62144, "p99Millis": 3.538944, "serverBytesPerRequest": 4427.911252417705, "serverAllocsPerRequest": 47.07614668049313, "sampledPeakHeapAlloc": 6219064, "sampledPeakFileDescriptors": 135, "before": { "heapAlloc": 2105600, "heapInuse": 4202496, "stackInuse": 1015808, "totalAlloc": 4172144, "mallocs": 30855, "numGc": 2, "goroutines": 58, "connections": 56, "accepted": 56, "fileDescriptors": 63 }, "during": { "heapAlloc": 3500920, "heapInuse": 5947392, "stackInuse": 2097152, "totalAlloc": 19735781560, "mallocs": 209811062, "numGc": 6570, "goroutines": 130, "connections": 128, "accepted": 128, "fileDescriptors": 135 }, "after": { "heapAlloc": 2828640, "heapInuse": 5054464, "stackInuse": 1015808, "totalAlloc": 19735811920, "mallocs": 209811396, "numGc": 6571, "goroutines": 2, "connections": 0, "accepted": 128, "fileDescriptors": 7 }, "afterReclaim": { "heapAlloc": 1722584, "heapInuse": 3530752, "stackInuse": 1015808, "totalAlloc": 19735822392, "mallocs": 209811421, "numGc": 6572, "goroutines": 2, "connections": 0, "accepted": 128, "fileDescriptors": 7 } }, { "adapter": "native", "scenario": "traffic", "concurrency": 128, "run": 1, "requests": 4398474, "errors": 0, "elapsedSeconds": 30.000375472, "requestsPerSecond": 146613.96501871088, "p50Millis": 0.622592, "p95Millis": 2.62144, "p99Millis": 3.670016, "serverBytesPerRequest": 4591.297385411395, "serverAllocsPerRequest": 59.0589788640333, "sampledPeakHeapAlloc": 4980920, "sampledPeakFileDescriptors": 135, "before": { "heapAlloc": 2202712, "heapInuse": 4120576, "stackInuse": 1671168, "totalAlloc": 4300920, "mallocs": 32647, "numGc": 2, "goroutines": 131, "connections": 128, "accepted": 128, "fileDescriptors": 135 }, "during": { "heapAlloc": 4382752, "heapInuse": 6021120, "stackInuse": 1638400, "totalAlloc": 20199003096, "mallocs": 259802030, "numGc": 9032, "goroutines": 131, "connections": 128, "accepted": 128, "fileDescriptors": 135 }, "after": { "heapAlloc": 2260152, "heapInuse": 4382720, "stackInuse": 557056, "totalAlloc": 20199025048, "mallocs": 259802362, "numGc": 9033, "goroutines": 3, "connections": 0, "accepted": 128, "fileDescriptors": 7 }, "afterReclaim": { "heapAlloc": 1645880, "heapInuse": 3489792, "stackInuse": 557056, "totalAlloc": 20199035520, "mallocs": 259802387, "numGc": 9034, "goroutines": 3, "connections": 0, "accepted": 128, "fileDescriptors": 7 } }, { "adapter": "nethttp", "scenario": "idle", "concurrency": 512, "run": 1, "errors": 0, "idleHeapDelta": 5162344, "idleHeapPerConnection": 10082.703125, "before": { "heapAlloc": 1516408, "heapInuse": 3301376, "stackInuse": 458752, "totalAlloc": 3006544, "mallocs": 23238, "numGc": 1, "goroutines": 2, "connections": 0, "accepted": 0, "fileDescriptors": 7 }, "during": { "heapAlloc": 6678752, "heapInuse": 8675328, "stackInuse": 4718592, "totalAlloc": 10467200, "mallocs": 59319, "numGc": 4, "goroutines": 514, "connections": 512, "accepted": 512, "fileDescriptors": 519 }, "after": { "heapAlloc": 6108264, "heapInuse": 8069120, "stackInuse": 491520, "totalAlloc": 10563168, "mallocs": 60468, "numGc": 5, "goroutines": 2, "connections": 0, "accepted": 512, "fileDescriptors": 7 }, "afterReclaim": { "heapAlloc": 1806072, "heapInuse": 3629056, "stackInuse": 491520, "totalAlloc": 10573944, "mallocs": 60497, "numGc": 6, "goroutines": 2, "connections": 0, "accepted": 512, "fileDescriptors": 7 } }, { "adapter": "native", "scenario": "idle", "concurrency": 512, "run": 1, "errors": 0, "idleHeapDelta": 2692536, "idleHeapPerConnection": 5258.859375, "before": { "heapAlloc": 1511104, "heapInuse": 3309568, "stackInuse": 425984, "totalAlloc": 3001496, "mallocs": 23227, "numGc": 1, "goroutines": 3, "connections": 0, "accepted": 0, "fileDescriptors": 7 }, "during": { "heapAlloc": 4203640, "heapInuse": 6283264, "stackInuse": 4718592, "totalAlloc": 8087336, "mallocs": 58784, "numGc": 4, "goroutines": 515, "connections": 512, "accepted": 512, "fileDescriptors": 519 }, "after": { "heapAlloc": 4233984, "heapInuse": 6316032, "stackInuse": 458752, "totalAlloc": 8182368, "mallocs": 60013, "numGc": 5, "goroutines": 3, "connections": 0, "accepted": 512, "fileDescriptors": 7 }, "afterReclaim": { "heapAlloc": 1804784, "heapInuse": 3686400, "stackInuse": 458752, "totalAlloc": 8193144, "mallocs": 60042, "numGc": 6, "goroutines": 3, "connections": 0, "accepted": 512, "fileDescriptors": 7 } } ] }