{
  "contract": "sync-measurement-contract-v1",
  "report_id": "research-2026-09-22-multi-consumer-concurrent-capture",
  "generated_at": "2026-09-22T07:12:47Z",
  "format": "1920x1080 BGRA8 at 60.0 fps",
  "arms": {
    "arm-1x-single-cmio": {
      "configuration": "1x Single Consumer (CMIO DAL)",
      "target_fps": 60.0,
      "delivered_fps": 37.39,
      "interval_mean_ms": 26.22,
      "interval_p95_ms": 50.63,
      "low_rate_seconds": 25,
      "seqlock_retries": 0,
      "torn_reads": 0
    },
    "arm-2x-concurrent-cmio-shm": {
      "configuration": "2x Concurrent Consumers (CMIO DAL + SHM Reader)",
      "consumers": {
        "avf_cmio": {
          "delivered_fps": 60.04,
          "interval_mean_ms": 16.61,
          "interval_p95_ms": 21.39,
          "low_rate_seconds": 1,
          "seqlock_retries": 0,
          "torn_reads": 0
        },
        "shm_reader": {
          "delivered_fps": 59.0,
          "interval_mean_ms": 16.96,
          "interval_p95_ms": 18.87,
          "low_rate_seconds": 1,
          "seqlock_retries": 0,
          "torn_reads": 0
        }
      },
      "staggered_zero_starvation": {
        "concurrent_phase_fps": 58.62,
        "post_cmio_disconnect_fps": 60.0,
        "post_cmio_low_rate_seconds": 0,
        "zero_starvation_verified": true
      }
    },
    "arm-3x-stress-cmio-dual-shm": {
      "configuration": "3x Concurrent Consumers (CMIO DAL + 2x SHM Readers)",
      "consumers": {
        "avf_cmio": {
          "delivered_fps": 61.0,
          "interval_mean_ms": 16.37,
          "interval_p95_ms": 20.87,
          "low_rate_seconds": 0,
          "seqlock_retries": 0,
          "torn_reads": 0
        },
        "shm_reader_1": {
          "delivered_fps": 59.79,
          "interval_mean_ms": 16.75,
          "interval_p95_ms": 18.16,
          "low_rate_seconds": 0,
          "seqlock_retries": 0,
          "torn_reads": 0
        },
        "shm_reader_2": {
          "delivered_fps": 59.82,
          "interval_mean_ms": 16.74,
          "interval_p95_ms": 18.08,
          "low_rate_seconds": 0,
          "seqlock_retries": 0,
          "torn_reads": 0
        }
      },
      "aggregate_metrics": {
        "total_fps": 180.61,
        "aggregate_bandwidth_mb_s": 1498.0,
        "seqlock_retries": 0,
        "torn_reads": 0,
        "low_rate_seconds": 0
      }
    },
    "arm-reverse-concurrent": {
      "configuration": "Reverse-Order Concurrent Verification",
      "consumers": {
        "avf_cmio": {
          "delivered_fps": 61.04,
          "interval_mean_ms": 16.37,
          "interval_p95_ms": 21.28,
          "low_rate_seconds": 0,
          "seqlock_retries": 0,
          "torn_reads": 0
        },
        "shm_reader": {
          "delivered_fps": 59.54,
          "interval_mean_ms": 16.82,
          "interval_p95_ms": 18.98,
          "low_rate_seconds": 0,
          "seqlock_retries": 0,
          "torn_reads": 0
        }
      }
    }
  }
}