{
    "schema_version": 1,
    "license": "CC BY 4.0",
    "citation": "Kuzeyhan Demir, ASAMB, Direct overwrite vs temporary-file rename for publishing JSON, measurement run 2026-07-22T15:23:56+00:00",
    "environment": {
        "generated_at": "2026-07-22T15:23:56+00:00",
        "php_version": "8.4.23",
        "php_sapi": "cli",
        "os": "Linux 4.18.0-553.85.1.el8_10.x86_64",
        "architecture": "x86_64",
        "cpu": "AMD EPYC-Rome Processor",
        "memory": "15.02 GiB host total",
        "opcache_cli": "0",
        "memory_limit": "1024M",
        "extensions": [
            "json",
            "openssl",
            "zlib",
            "mbstring",
            "pdo_sqlite"
        ],
        "timezone": "UTC",
        "clock": "hrtime(true)",
        "rounds": 7
    },
    "study": {
        "slug": "atomic-file-publishing",
        "iterations_per_sample": 35,
        "rounds": 7,
        "winner": "Temporary file + rename",
        "slowest": "Direct overwrite",
        "spread_percent": 43.63,
        "variants": {
            "Temporary file + rename": {
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                "p25_ns_per_op": 155252.24,
                "p75_ns_per_op": 177618.13,
                "ops_per_second": 5927.86,
                "samples_ns_per_op": [
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                    152426.66,
                    178325.63,
                    176910.63,
                    181928.09,
                    140683.17,
                    168694.94
                ],
                "extra": []
            },
            "Direct overwrite": {
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                "p25_ns_per_op": 232811.11,
                "p75_ns_per_op": 248449.07,
                "ops_per_second": 4127.04,
                "samples_ns_per_op": [
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                    242304.66,
                    234313.09,
                    265150.43,
                    251769.89,
                    207609.46,
                    231309.14
                ],
                "extra": []
            }
        }
    }
}