{
  "description": "REG-09: five paired runs after indexes and targeted updates; independently rebuilt schema29 input; no in-process rebuild setup. Local packed Git clones, not production host load. Historical activity parity remains a REG-12/20 verification obligation.",
  "query_plans": {
    "activity_author_update": [
      "SEARCH activity USING INDEX activity_author_identity_idx (author_identity_id=?)"
    ],
    "post_link_or": [
      "MULTI-INDEX OR",
      "INDEX 1",
      "SEARCH posts USING INDEX sqlite_autoindex_posts_1 (post_id=?)",
      "INDEX 2",
      "SEARCH posts USING INDEX posts_author_identity_idx (author_identity_id=?)"
    ]
  },
  "summary": {
    "fresh_signed": {
      "wall_ms": [
        991.4,
        1065.3,
        1183.9,
        1366.4,
        1738.5
      ],
      "median_wall_ms": 1183.9,
      "median_timings_ms": {
        "lock_wait": 0,
        "lock_hold": 1152.2,
        "identity_signature_verify": 44.8,
        "gpg_public_key_packet_inspection": 4.1,
        "gpg_public_key_import": 13.6,
        "gpg_post_import_key_lookup": 3.4,
        "gpg_signature_verify": 4.3,
        "canonical_record_parse": 0.1,
        "identity_write_files": 1.3,
        "identity_commit": 645.6,
        "git_add": 225.7,
        "git_commit": 511.3,
        "git_rev_parse": 3.8,
        "identity_derived_state": 459,
        "read_model_incremental_update": 459,
        "read_model_incremental_insert_profile": 0.6,
        "read_model_incremental_ensure_bootstrap_post": 11.1,
        "read_model_incremental_ensure_username_route": 0.1,
        "read_model_incremental_link_posts": 0.1,
        "read_model_incremental_link_activity": 0.1,
        "read_model_incremental_profile_load": 9.4,
        "read_model_incremental_profile_posts_load": 71.9,
        "read_model_incremental_profile_approval_derive": 300.6,
        "read_model_incremental_profile_counts_derive": 12.5,
        "read_model_incremental_profile_rows_update": 11.6,
        "read_model_incremental_profile_activity_refresh": 0,
        "read_model_incremental_refresh_profile_state": 410.9,
        "read_model_incremental_write_metadata": 0.3,
        "read_model_incremental_transaction_commit": 10.1,
        "artifact_invalidate": 0.7,
        "prepared_post_delete": 0.1,
        "write_total": 1152.3
      },
      "max_lock_hold_ms": 1694,
      "metrics": {
        "path": "incremental",
        "profiles_considered": 3846,
        "posts_considered": 18761,
        "profile_rows_updated": 0,
        "activity_update_statements": 1,
        "activity_row_updates": 0,
        "process_peak_memory_bytes": 37748736
      }
    },
    "historical_link": {
      "wall_ms": [
        944.8,
        707.7,
        1005.1,
        516.4,
        998.0
      ],
      "median_wall_ms": 944.8,
      "median_timings_ms": {
        "lock_wait": 0,
        "lock_hold": 944.4,
        "git_add": 144.8,
        "git_commit": 275.8,
        "git_rev_parse": 2.8,
        "gpg_key_inspect": 16.2,
        "read_model_incremental_update": 420.2,
        "read_model_incremental_insert_profile": 0.3,
        "read_model_incremental_ensure_bootstrap_post": 0,
        "read_model_incremental_ensure_username_route": 0,
        "read_model_incremental_link_posts": 0.1,
        "read_model_incremental_link_activity": 0.1,
        "read_model_incremental_profile_load": 9.4,
        "read_model_incremental_profile_posts_load": 51.1,
        "read_model_incremental_profile_approval_derive": 298.5,
        "read_model_incremental_profile_counts_derive": 8.1,
        "read_model_incremental_profile_rows_update": 12.8,
        "read_model_incremental_profile_activity_refresh": 0.1,
        "read_model_incremental_refresh_profile_state": 387.1,
        "read_model_incremental_write_metadata": 0.2,
        "read_model_incremental_transaction_commit": 12.8,
        "artifact_invalidate": 0.1,
        "write_total": 944.2
      },
      "max_lock_hold_ms": 1004.8,
      "metrics": {
        "path": "incremental",
        "profiles_considered": 3846,
        "posts_considered": 18760,
        "profile_rows_updated": 1,
        "activity_update_statements": 2,
        "activity_row_updates": 0,
        "process_peak_memory_bytes": 37748736
      }
    }
  },
  "runs": [
    {
      "started_at": "2026-10-24T18:11:55+00:00",
      "application_head": "989385bb788243cdf31ca8cf0dab2892550422fd",
      "application_changes": "M src/ForumRewrite/Support/HealthIndicators.php",
      "php_version": "8.1.2-1ubuntu2.28",
      "sqlite_version": "3.37.2",
      "site": "qdb",
      "source_head": "f13b31c925715d0f3fcf06dfebcd9a48ab04714f",
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        "schema_fingerprint": "8e22119e113b94a0c5897a9b233074dce1589ae77c7259c0430b5290cb995c38",
        "source_removal_generation": "4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945",
        "repository_root": "/home/wsl/v3/state/benchmarks/qdb-20261024/matched-repository",
        "repository_head": "f13b31c925715d0f3fcf06dfebcd9a48ab04714f",
        "rebuilt_at": "2026-10-24T18:07:31+00:00",
        "rebuild_reason": "manual",
        "thread_label_invalid_count": "0",
        "post_reaction_invalid_count": "0",
        "thread_subject_invalid_count": "0"
      },
      "source_counts": {
        "posts": 18760,
        "threads": 18739,
        "profiles": 3845,
        "activity": 18863
      },
      "rebuild_copy": false,
      "timing_scope": "LocalWriteService on isolated clones; setup/key generation excluded. Fresh total includes local signing; server timings reported separately. No HTTP, cron, or host-load simulation.",
      "cases": {
        "fresh_signed": {
          "wall_ms": 991.379204,
          "timings_ms": {
            "lock_wait": 0,
            "lock_hold": 955.3,
            "identity_signature_verify": 40.5,
            "gpg_public_key_packet_inspection": 3.5,
            "gpg_public_key_import": 12.3,
            "gpg_post_import_key_lookup": 3.4,
            "gpg_signature_verify": 4.1,
            "canonical_record_parse": 0.4,
            "identity_write_files": 1.5,
            "identity_commit": 475.6,
            "git_add": 199.5,
            "git_commit": 271.9,
            "git_rev_parse": 4,
            "identity_derived_state": 435.9,
            "read_model_incremental_update": 435.9,
            "read_model_incremental_insert_profile": 0.6,
            "read_model_incremental_ensure_bootstrap_post": 15.2,
            "read_model_incremental_ensure_username_route": 0.1,
            "read_model_incremental_link_posts": 0.2,
            "read_model_incremental_link_activity": 0.1,
            "read_model_incremental_profile_load": 17.9,
            "read_model_incremental_profile_posts_load": 67.2,
            "read_model_incremental_profile_approval_derive": 300.6,
            "read_model_incremental_profile_counts_derive": 11.3,
            "read_model_incremental_profile_rows_update": 11.6,
            "read_model_incremental_profile_activity_refresh": 0,
            "read_model_incremental_refresh_profile_state": 410.9,
            "read_model_incremental_write_metadata": 0.3,
            "read_model_incremental_transaction_commit": 4.6,
            "artifact_invalidate": 0.6,
            "prepared_post_delete": 0,
            "write_total": 955.5
          },
          "identity_update_metrics": {
            "path": "incremental",
            "profiles_considered": 3846,
            "posts_considered": 18761,
            "profile_rows_updated": 0,
            "activity_update_statements": 1,
            "activity_row_updates": 0,
            "process_peak_memory_bytes": 37748736
          },
          "preparation_timings_ms": {
            "lock_wait": 0,
            "lock_hold": 21,
            "gpg_key_inspect": 17.6,
            "prepared_post_store": 0.3,
            "write_total": 23.4
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          "counts_before": {
            "posts": 18760,
            "threads": 18739,
            "profiles": 3845,
            "activity": 18863
          },
          "counts_after": {
            "posts": 18761,
            "threads": 18740,
            "profiles": 3846,
            "activity": 18864
          },
          "rebuild_reason": "write_incremental",
          "process_peak_memory_bytes": 37748736,
          "quick_check": "ok"
        },
        "historical_link": {
          "wall_ms": 944.757369,
          "timings_ms": {
            "lock_wait": 0,
            "lock_hold": 944.4,
            "git_add": 197.6,
            "git_commit": 275.8,
            "git_rev_parse": 2.2,
            "gpg_key_inspect": 16,
            "read_model_incremental_update": 451.9,
            "read_model_incremental_insert_profile": 0.3,
            "read_model_incremental_ensure_bootstrap_post": 0,
            "read_model_incremental_ensure_username_route": 0,
            "read_model_incremental_link_posts": 0.1,
            "read_model_incremental_link_activity": 0,
            "read_model_incremental_profile_load": 9.4,
            "read_model_incremental_profile_posts_load": 55.6,
            "read_model_incremental_profile_approval_derive": 298.5,
            "read_model_incremental_profile_counts_derive": 8.1,
            "read_model_incremental_profile_rows_update": 12.8,
            "read_model_incremental_profile_activity_refresh": 0.1,
            "read_model_incremental_refresh_profile_state": 387.1,
            "read_model_incremental_write_metadata": 0.2,
            "read_model_incremental_transaction_commit": 63.1,
            "artifact_invalidate": 0.1,
            "write_total": 944.2
          },
          "identity_update_metrics": {
            "path": "incremental",
            "profiles_considered": 3846,
            "posts_considered": 18760,
            "profile_rows_updated": 1,
            "activity_update_statements": 2,
            "activity_row_updates": 0,
            "process_peak_memory_bytes": 37748736
          },
          "preparation_timings_ms": null,
          "counts_before": {
            "posts": 18760,
            "threads": 18739,
            "profiles": 3845,
            "activity": 18863
          },
          "counts_after": {
            "posts": 18760,
            "threads": 18739,
            "profiles": 3846,
            "activity": 18863
          },
          "rebuild_reason": "write_incremental",
          "process_peak_memory_bytes": 37748736,
          "quick_check": "ok"
        }
      },
      "source_inputs_unchanged": true,
      "finished_at": "2026-10-24T18:12:12+00:00"
    },
    {
      "started_at": "2026-10-24T18:12:12+00:00",
      "application_head": "989385bb788243cdf31ca8cf0dab2892550422fd",
      "application_changes": "M src/ForumRewrite/Support/HealthIndicators.php",
      "php_version": "8.1.2-1ubuntu2.28",
      "sqlite_version": "3.37.2",
      "site": "qdb",
      "source_head": "f13b31c925715d0f3fcf06dfebcd9a48ab04714f",
      "source_database_sha256": "60adbd8e804aefa4bc13609c0d3967d431b6a6f03590dd2f18e18e9c38393b19",
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        "schema_fingerprint": "8e22119e113b94a0c5897a9b233074dce1589ae77c7259c0430b5290cb995c38",
        "source_removal_generation": "4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945",
        "repository_root": "/home/wsl/v3/state/benchmarks/qdb-20261024/matched-repository",
        "repository_head": "f13b31c925715d0f3fcf06dfebcd9a48ab04714f",
        "rebuilt_at": "2026-10-24T18:07:31+00:00",
        "rebuild_reason": "manual",
        "thread_label_invalid_count": "0",
        "post_reaction_invalid_count": "0",
        "thread_subject_invalid_count": "0"
      },
      "source_counts": {
        "posts": 18760,
        "threads": 18739,
        "profiles": 3845,
        "activity": 18863
      },
      "rebuild_copy": false,
      "timing_scope": "LocalWriteService on isolated clones; setup/key generation excluded. Fresh total includes local signing; server timings reported separately. No HTTP, cron, or host-load simulation.",
      "cases": {
        "fresh_signed": {
          "wall_ms": 1065.346147,
          "timings_ms": {
            "lock_wait": 0,
            "lock_hold": 1026.9,
            "identity_signature_verify": 35.1,
            "gpg_public_key_packet_inspection": 3.6,
            "gpg_public_key_import": 12.1,
            "gpg_post_import_key_lookup": 3.4,
            "gpg_signature_verify": 4.3,
            "canonical_record_parse": 0.1,
            "identity_write_files": 1.1,
            "identity_commit": 565.9,
            "git_add": 234.7,
            "git_commit": 328.5,
            "git_rev_parse": 2.7,
            "identity_derived_state": 423.2,
            "read_model_incremental_update": 423.2,
            "read_model_incremental_insert_profile": 0.6,
            "read_model_incremental_ensure_bootstrap_post": 9.7,
            "read_model_incremental_ensure_username_route": 0,
            "read_model_incremental_link_posts": 0.1,
            "read_model_incremental_link_activity": 0.1,
            "read_model_incremental_profile_load": 7.4,
            "read_model_incremental_profile_posts_load": 71.9,
            "read_model_incremental_profile_approval_derive": 294.3,
            "read_model_incremental_profile_counts_derive": 11.5,
            "read_model_incremental_profile_rows_update": 11.5,
            "read_model_incremental_profile_activity_refresh": 0,
            "read_model_incremental_refresh_profile_state": 398.9,
            "read_model_incremental_write_metadata": 0.3,
            "read_model_incremental_transaction_commit": 10.1,
            "artifact_invalidate": 0.6,
            "prepared_post_delete": 0,
            "write_total": 1027.1
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          "identity_update_metrics": {
            "path": "incremental",
            "profiles_considered": 3846,
            "posts_considered": 18761,
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            "activity_update_statements": 1,
            "activity_row_updates": 0,
            "process_peak_memory_bytes": 37748736
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          "preparation_timings_ms": {
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            "lock_hold": 24.5,
            "gpg_key_inspect": 20.4,
            "prepared_post_store": 0.4,
            "write_total": 25.2
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          "counts_before": {
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          "counts_after": {
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            "profiles": 3846,
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          "rebuild_reason": "write_incremental",
          "process_peak_memory_bytes": 37748736,
          "quick_check": "ok"
        },
        "historical_link": {
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          "timings_ms": {
            "lock_wait": 0,
            "lock_hold": 707.4,
            "git_add": 95.8,
            "git_commit": 166.5,
            "git_rev_parse": 3.9,
            "gpg_key_inspect": 15.2,
            "read_model_incremental_update": 424.6,
            "read_model_incremental_insert_profile": 0.6,
            "read_model_incremental_ensure_bootstrap_post": 0,
            "read_model_incremental_ensure_username_route": 0.1,
            "read_model_incremental_link_posts": 0.2,
            "read_model_incremental_link_activity": 0.1,
            "read_model_incremental_profile_load": 11,
            "read_model_incremental_profile_posts_load": 50.1,
            "read_model_incremental_profile_approval_derive": 287.8,
            "read_model_incremental_profile_counts_derive": 9.3,
            "read_model_incremental_profile_rows_update": 13.3,
            "read_model_incremental_profile_activity_refresh": 0.1,
            "read_model_incremental_refresh_profile_state": 374.2,
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            "artifact_invalidate": 0.1,
            "write_total": 707.2
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          "identity_update_metrics": {
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            "profiles_considered": 3846,
            "posts_considered": 18760,
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            "activity_update_statements": 2,
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          },
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          "counts_before": {
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          "rebuild_reason": "write_incremental",
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          "quick_check": "ok"
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      },
      "source_inputs_unchanged": true,
      "finished_at": "2026-10-24T18:12:27+00:00"
    },
    {
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      "application_head": "989385bb788243cdf31ca8cf0dab2892550422fd",
      "application_changes": "M src/ForumRewrite/Support/HealthIndicators.php",
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      "site": "qdb",
      "source_head": "f13b31c925715d0f3fcf06dfebcd9a48ab04714f",
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        "schema_fingerprint": "8e22119e113b94a0c5897a9b233074dce1589ae77c7259c0430b5290cb995c38",
        "source_removal_generation": "4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945",
        "repository_root": "/home/wsl/v3/state/benchmarks/qdb-20261024/matched-repository",
        "repository_head": "f13b31c925715d0f3fcf06dfebcd9a48ab04714f",
        "rebuilt_at": "2026-10-24T18:07:31+00:00",
        "rebuild_reason": "manual",
        "thread_label_invalid_count": "0",
        "post_reaction_invalid_count": "0",
        "thread_subject_invalid_count": "0"
      },
      "source_counts": {
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        "threads": 18739,
        "profiles": 3845,
        "activity": 18863
      },
      "rebuild_copy": false,
      "timing_scope": "LocalWriteService on isolated clones; setup/key generation excluded. Fresh total includes local signing; server timings reported separately. No HTTP, cron, or host-load simulation.",
      "cases": {
        "fresh_signed": {
          "wall_ms": 1183.920665,
          "timings_ms": {
            "lock_wait": 0,
            "lock_hold": 1152.2,
            "identity_signature_verify": 44.8,
            "gpg_public_key_packet_inspection": 4.9,
            "gpg_public_key_import": 14.7,
            "gpg_post_import_key_lookup": 4,
            "gpg_signature_verify": 5.9,
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            "identity_write_files": 1.3,
            "identity_commit": 645.6,
            "git_add": 128.6,
            "git_commit": 511.3,
            "git_rev_parse": 5.7,
            "identity_derived_state": 459,
            "read_model_incremental_update": 459,
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            "read_model_incremental_profile_load": 9.4,
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            "read_model_incremental_profile_approval_derive": 300.4,
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            "read_model_incremental_refresh_profile_state": 404.6,
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            "artifact_invalidate": 0.7,
            "prepared_post_delete": 0.1,
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          "identity_update_metrics": {
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          "rebuild_reason": "write_incremental",
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          "quick_check": "ok"
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        "historical_link": {
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            "lock_hold": 1004.8,
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            "git_commit": 339.8,
            "git_rev_parse": 3.1,
            "gpg_key_inspect": 31.1,
            "read_model_incremental_update": 408.1,
            "read_model_incremental_insert_profile": 0.3,
            "read_model_incremental_ensure_bootstrap_post": 0,
            "read_model_incremental_ensure_username_route": 0,
            "read_model_incremental_link_posts": 0.1,
            "read_model_incremental_link_activity": 0.1,
            "read_model_incremental_profile_load": 9.5,
            "read_model_incremental_profile_posts_load": 51.1,
            "read_model_incremental_profile_approval_derive": 309.6,
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            "activity_row_updates": 0,
            "process_peak_memory_bytes": 37748736
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          "counts_before": {
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