{
  "schema_version": 1,
  "title": "ScorpioFS 1M verified performance advantages",
  "as_of": "2026-10-21",
  "run_id": "acs-export-lifetime-1m-20261021",
  "source_report": "ALIYUN-ACS-EXPORT-LIFETIME-1M-2026-10-21.report.json",
  "source_report_sha256": "c72f3d9cf19489b2ef2394a9909070d051bc2008c9256274382a4e8442d50ff0",
  "scope": "Only advantages over the fastest available Git baseline, by operation and cache phase",
  "fixture": {
    "files": 1000000,
    "logical_bytes": 8321411335,
    "history_commits": 10
  },
  "resources": {
    "runner": {
      "cpu": "4",
      "memory": "16Gi"
    },
    "backend": {
      "cpu": "4",
      "memory": "16Gi"
    },
    "verification_workers": 8
  },
  "sample_count": 230,
  "verified_patch_artifacts": 54,
  "git_commands": 485,
  "explicit_server_preparation_ms": 258588.422927,
  "total_background_cost_known": false,
  "first_usable_definition": "request start through first target file read and SHA-256 verification; not full materialization",
  "patch_definition": "complete patch receive and SHA-256, followed by independent forward/reverse application verification",
  "statistics": "First observations n=1; retained patch responses median n=2; workspaces and dirty boolean median n=3",
  "limitations": {
    "first_read_1000_ms": 151683.567352,
    "additional_900_fsync_writes_ms": 701484.88302,
    "scorpio_commit_update_and_changed_reads_ms": 61261.185338,
    "git_commit_update_and_changed_reads_ms": 1078.859261
  },
  "advantages": [
    {
      "scope": "/project",
      "operation": "additional_workspace_ready",
      "baseline": "git_depth1",
      "cache_phase": "retained_prepared_base",
      "git_ms": 42244.367873,
      "scorpio_ms": 9161.843713,
      "ratio": 4.610902477310137,
      "git_n": 3,
      "scorpio_n": 3,
      "kind": "workspace",
      "label": "新增整仓工作区",
      "phase_label": "复用已准备基座",
      "scope_label": "100 万文件",
      "baseline_label": "原生 Git worktree",
      "statistic": "中位数"
    },
    {
      "scope": "/project",
      "operation": "first_usable",
      "baseline": "git_depth1",
      "cache_phase": "all",
      "git_ms": 339282.351695,
      "scorpio_ms": 11824.33786,
      "ratio": 28.6935603254997,
      "git_n": 1,
      "scorpio_n": 1,
      "kind": "workspace",
      "label": "整仓首文件可用",
      "phase_label": "首次观测",
      "scope_label": "100 万文件",
      "baseline_label": "Git clone --depth=1",
      "statistic": "单次观测"
    },
    {
      "scope": "svc01/pkg000",
      "operation": "full_patch_diff_1",
      "baseline": "git_depth1",
      "cache_phase": "first_patch_response",
      "git_ms": 3.140003,
      "scorpio_ms": 1.559455,
      "ratio": 2.01352587923345,
      "git_n": 1,
      "scorpio_n": 1,
      "kind": "diff",
      "label": "完整 diff · 1 文件变更",
      "phase_label": "首次响应",
      "scope_label": "250 文件",
      "baseline_label": "独立子目录 Git",
      "statistic": "单次观测"
    },
    {
      "scope": "svc01/pkg000",
      "operation": "full_patch_diff_1",
      "baseline": "git_depth1",
      "cache_phase": "retained_patch_responses",
      "git_ms": 3.108676,
      "scorpio_ms": 1.094062,
      "ratio": 2.8414075253504825,
      "git_n": 2,
      "scorpio_n": 2,
      "kind": "diff",
      "label": "完整 diff · 1 文件变更",
      "phase_label": "缓存保留后重复响应",
      "scope_label": "250 文件",
      "baseline_label": "独立子目录 Git",
      "statistic": "中位数"
    },
    {
      "scope": "svc02",
      "operation": "dirty_boolean_1",
      "baseline": "git_depth1",
      "cache_phase": "all",
      "git_ms": 9.661875,
      "scorpio_ms": 1.444303,
      "ratio": 6.689645455281891,
      "git_n": 3,
      "scorpio_n": 3,
      "kind": "dirty",
      "label": "改动布尔检测 · 1 文件变更",
      "phase_label": "重复测量",
      "scope_label": "25,000 文件",
      "baseline_label": "独立子目录 Git",
      "statistic": "中位数"
    },
    {
      "scope": "svc02",
      "operation": "dirty_boolean_100",
      "baseline": "git_depth1",
      "cache_phase": "all",
      "git_ms": 10.314854,
      "scorpio_ms": 1.527776,
      "ratio": 6.751548656347528,
      "git_n": 3,
      "scorpio_n": 3,
      "kind": "dirty",
      "label": "改动布尔检测 · 100 文件变更",
      "phase_label": "重复测量",
      "scope_label": "25,000 文件",
      "baseline_label": "独立子目录 Git",
      "statistic": "中位数"
    },
    {
      "scope": "svc02",
      "operation": "dirty_boolean_1000",
      "baseline": "git_depth1",
      "cache_phase": "all",
      "git_ms": 10.269039,
      "scorpio_ms": 1.544596,
      "ratio": 6.648365656780154,
      "git_n": 3,
      "scorpio_n": 3,
      "kind": "dirty",
      "label": "改动布尔检测 · 1,000 文件变更",
      "phase_label": "重复测量",
      "scope_label": "25,000 文件",
      "baseline_label": "独立子目录 Git",
      "statistic": "中位数"
    },
    {
      "scope": "svc02",
      "operation": "full_patch_diff_1",
      "baseline": "git_sparse",
      "cache_phase": "first_patch_response",
      "git_ms": 143.243585,
      "scorpio_ms": 1.349701,
      "ratio": 106.12986505900196,
      "git_n": 1,
      "scorpio_n": 1,
      "kind": "diff",
      "label": "完整 diff · 1 文件变更",
      "phase_label": "首次响应",
      "scope_label": "25,000 文件",
      "baseline_label": "Git sparse",
      "statistic": "单次观测"
    },
    {
      "scope": "svc02",
      "operation": "full_patch_diff_1",
      "baseline": "git_sparse",
      "cache_phase": "retained_patch_responses",
      "git_ms": 143.197225,
      "scorpio_ms": 1.281264,
      "ratio": 111.76246659548696,
      "git_n": 2,
      "scorpio_n": 2,
      "kind": "diff",
      "label": "完整 diff · 1 文件变更",
      "phase_label": "缓存保留后重复响应",
      "scope_label": "25,000 文件",
      "baseline_label": "Git sparse",
      "statistic": "中位数"
    },
    {
      "scope": "svc02",
      "operation": "full_patch_diff_100",
      "baseline": "git_sparse",
      "cache_phase": "first_patch_response",
      "git_ms": 151.332778,
      "scorpio_ms": 20.443732,
      "ratio": 7.402404707711879,
      "git_n": 1,
      "scorpio_n": 1,
      "kind": "diff",
      "label": "完整 diff · 100 文件变更",
      "phase_label": "首次响应",
      "scope_label": "25,000 文件",
      "baseline_label": "Git sparse",
      "statistic": "单次观测"
    },
    {
      "scope": "svc02",
      "operation": "full_patch_diff_100",
      "baseline": "git_sparse",
      "cache_phase": "retained_patch_responses",
      "git_ms": 151.245345,
      "scorpio_ms": 19.178516000000002,
      "ratio": 7.88618603232909,
      "git_n": 2,
      "scorpio_n": 2,
      "kind": "diff",
      "label": "完整 diff · 100 文件变更",
      "phase_label": "缓存保留后重复响应",
      "scope_label": "25,000 文件",
      "baseline_label": "Git sparse",
      "statistic": "中位数"
    },
    {
      "scope": "svc02",
      "operation": "full_patch_diff_1000",
      "baseline": "git_sparse",
      "cache_phase": "first_patch_response",
      "git_ms": 230.30501,
      "scorpio_ms": 174.992904,
      "ratio": 1.3160819938161608,
      "git_n": 1,
      "scorpio_n": 1,
      "kind": "diff",
      "label": "完整 diff · 1,000 文件变更",
      "phase_label": "首次响应",
      "scope_label": "25,000 文件",
      "baseline_label": "Git sparse",
      "statistic": "单次观测"
    },
    {
      "scope": "svc02",
      "operation": "full_patch_diff_1000",
      "baseline": "git_sparse",
      "cache_phase": "retained_patch_responses",
      "git_ms": 232.12973499999998,
      "scorpio_ms": 173.40132599999998,
      "ratio": 1.3386848898721802,
      "git_n": 2,
      "scorpio_n": 2,
      "kind": "diff",
      "label": "完整 diff · 1,000 文件变更",
      "phase_label": "缓存保留后重复响应",
      "scope_label": "25,000 文件",
      "baseline_label": "Git sparse",
      "statistic": "中位数"
    }
  ]
}