{
  "asOf": "2026-11-04",
  "rowsAsOf": "2026-11-05",
  "providers": [
    "coreload",
    "blacksmith"
  ],
  "workload": "The Linux kernel v6.12 (torvalds/linux at adc218676eef25575469234709c2d87185ca223a), x86_64 defconfig: only `make -j2 vmlinux` is timed; the source fetch, defconfig and the toolchain install are untimed, and both providers build with -j2 on Ubuntu 24.04 with gcc 13.3.",
  "statistic": "median",
  "runsPerCell": 3,
  "machines": {
    "coreload": "2-vCPU runner (it exposes 3 vCPUs; the build is held to -j2). Two of the 3 runs shared one machine; the run alone on its machine took 497.7 s.",
    "blacksmith": "2-vCPU runner."
  },
  "rows": [
    {
      "vcpu": 2,
      "job": "Linux v6.12 kernel build (make -j2 vmlinux)",
      "seconds": {
        "coreload": 546.7,
        "blacksmith": 545.5
      }
    }
  ],
  "machineMethod": "One pinned integer-throughput probe, run 3 times per runner size on 2026-11-04: Coreload at 2 vCPU only, Blacksmith at 2, 4, 8, 16 and 32 vCPU. Each run measures one vCPU alone, then every vCPU at once; per run we take the median across its vCPUs, and per size the median of the 3 runs. All-core speed is per vCPU with every vCPU busy. Coreload's 2-vCPU runner currently exposes 3 vCPUs to the job, so its ratios compare per vCPU, not totals. Blacksmith was measured with our own Blacksmith account under their standard terms of service. Queue time is from the job's creation to its start, as GitHub records them. CPU family is read from each run's own processor identification.",
  "machineRuns": 3,
  "machineRows": [
    {
      "vcpu": 2,
      "cells": {
        "coreload": {
          "cpu": "AMD Zen 5",
          "queueP50Seconds": 7,
          "singleThread": 1,
          "allCore": 1
        },
        "blacksmith": {
          "cpu": "AMD Zen 5",
          "queueP50Seconds": 10,
          "singleThread": 0.63,
          "allCore": 0.87
        }
      }
    },
    {
      "vcpu": 4,
      "cells": {
        "blacksmith": {
          "cpu": "AMD Zen 5",
          "queueP50Seconds": 8
        }
      }
    },
    {
      "vcpu": 8,
      "cells": {
        "blacksmith": {
          "cpu": "AMD Zen 5",
          "queueP50Seconds": 8
        }
      }
    },
    {
      "vcpu": 16,
      "cells": {
        "blacksmith": {
          "cpu": "AMD Zen 5",
          "queueP50Seconds": 8
        }
      }
    },
    {
      "vcpu": 32,
      "cells": {
        "blacksmith": {
          "cpu": "AMD Zen 5",
          "queueP50Seconds": 8
        }
      }
    }
  ],
  "raw": [
    {
      "provider": "coreload",
      "vcpu": 2,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 3,
      "oneVcpuAlone": 22.9,
      "perVcpuAllBusy": 14.06,
      "queueSeconds": 7
    },
    {
      "provider": "coreload",
      "vcpu": 2,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 3,
      "oneVcpuAlone": 21.55,
      "perVcpuAllBusy": 17.31,
      "queueSeconds": 7
    },
    {
      "provider": "coreload",
      "vcpu": 2,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 3,
      "oneVcpuAlone": 22.43,
      "perVcpuAllBusy": 14.71,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 2,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 2,
      "oneVcpuAlone": 13.93,
      "perVcpuAllBusy": 12.86,
      "queueSeconds": 10
    },
    {
      "provider": "blacksmith",
      "vcpu": 2,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 2,
      "oneVcpuAlone": 14.14,
      "perVcpuAllBusy": 17.63,
      "queueSeconds": 9
    },
    {
      "provider": "blacksmith",
      "vcpu": 2,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 2,
      "oneVcpuAlone": 17.52,
      "perVcpuAllBusy": 12.5,
      "queueSeconds": 12
    },
    {
      "provider": "blacksmith",
      "vcpu": 4,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 4,
      "oneVcpuAlone": 16.5,
      "perVcpuAllBusy": 13.4,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 4,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 4,
      "oneVcpuAlone": 16.79,
      "perVcpuAllBusy": 16.86,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 4,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 4,
      "oneVcpuAlone": 18.23,
      "perVcpuAllBusy": 15.64,
      "queueSeconds": 9
    },
    {
      "provider": "blacksmith",
      "vcpu": 8,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 8,
      "oneVcpuAlone": 18.83,
      "perVcpuAllBusy": 17.92,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 8,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 8,
      "oneVcpuAlone": 18.91,
      "perVcpuAllBusy": 16.77,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 8,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 8,
      "oneVcpuAlone": 19.42,
      "perVcpuAllBusy": 18.09,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 16,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 16,
      "oneVcpuAlone": 22.86,
      "perVcpuAllBusy": 19.62,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 16,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 16,
      "oneVcpuAlone": 22.89,
      "perVcpuAllBusy": 19.23,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 16,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 16,
      "oneVcpuAlone": 21.26,
      "perVcpuAllBusy": 17.59,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 32,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 32,
      "oneVcpuAlone": 23.01,
      "perVcpuAllBusy": 18.77,
      "queueSeconds": 8
    },
    {
      "provider": "blacksmith",
      "vcpu": 32,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 32,
      "oneVcpuAlone": 22.34,
      "perVcpuAllBusy": 16.55,
      "queueSeconds": 7
    },
    {
      "provider": "blacksmith",
      "vcpu": 32,
      "date": "2026-11-04",
      "cpuFamily": "AMD Zen 5",
      "vcpusSeen": 32,
      "oneVcpuAlone": 23.89,
      "perVcpuAllBusy": 17.3,
      "queueSeconds": 8
    },
    {
      "provider": "coreload",
      "vcpu": 2,
      "date": "2026-11-05",
      "seconds": 497.7,
      "job": "Linux v6.12 kernel build (make -j2 vmlinux)"
    },
    {
      "provider": "coreload",
      "vcpu": 2,
      "date": "2026-11-05",
      "seconds": 546.7,
      "job": "Linux v6.12 kernel build (make -j2 vmlinux)"
    },
    {
      "provider": "coreload",
      "vcpu": 2,
      "date": "2026-11-05",
      "seconds": 547.3,
      "job": "Linux v6.12 kernel build (make -j2 vmlinux)"
    },
    {
      "provider": "blacksmith",
      "vcpu": 2,
      "date": "2026-11-05",
      "seconds": 467.2,
      "job": "Linux v6.12 kernel build (make -j2 vmlinux)"
    },
    {
      "provider": "blacksmith",
      "vcpu": 2,
      "date": "2026-11-05",
      "seconds": 545.5,
      "job": "Linux v6.12 kernel build (make -j2 vmlinux)"
    },
    {
      "provider": "blacksmith",
      "vcpu": 2,
      "date": "2026-11-05",
      "seconds": 560,
      "job": "Linux v6.12 kernel build (make -j2 vmlinux)"
    }
  ]
}