{
  "generated_at": "2026-09-04T00:00:00+09:00",
  "measurement": {"iterations": 3, "warmups": 0, "storage": "WorkDisk real-file I/O", "Keka": "fresh official CLI-wrapper process per operation", "BetterZip": "resident app; official synchronous AppleScript API"},
  "tools": {"Keka": {"version": "1.6.7", "sha256": "759d37ca17f04a343b69f767513c9fe69143103bc721304eca3baf99dc186044"}, "BetterZip": {"version": "6.0.5", "sha256": "053919a087b67d33d80d2b68f0dad4d5db6dc4b24147f62ee1ba021d19fa0d5b"}},
  "settings": {"Keka": "ZIP / Deflate / -mx=5; AES256 when encrypted", "BetterZip": "ZIP / Fast / remove Mac stuff; Strong AES-256 when encrypted"},
  "results": [
    {"corpus":"canterbury","mode":"ZIP","product":"Keka 1.6.7","create_seconds":0.1055712079978548,"extract_seconds":0.055359917008900084,"archive_bytes":681407},{"corpus":"canterbury","mode":"ZIP","product":"BetterZip 6.0.5","create_seconds":0.40095633300370537,"extract_seconds":0.6294294159888523,"archive_bytes":767056},
    {"corpus":"canterbury","mode":"AES","product":"Keka 1.6.7","create_seconds":0.10736066699610092,"extract_seconds":0.07127870900148991,"archive_bytes":681957},{"corpus":"canterbury","mode":"AES","product":"BetterZip 6.0.5","create_seconds":0.426848124989192,"extract_seconds":0.37681179100763984,"archive_bytes":767606},
    {"corpus":"calgary","mode":"ZIP","product":"Keka 1.6.7","create_seconds":0.15280829199764412,"extract_seconds":0.060902750003151596,"archive_bytes":987934},{"corpus":"calgary","mode":"ZIP","product":"BetterZip 6.0.5","create_seconds":0.42097512500185985,"extract_seconds":0.37572595800156705,"archive_bytes":1068992},
    {"corpus":"calgary","mode":"AES","product":"Keka 1.6.7","create_seconds":0.14325679100875277,"extract_seconds":0.06479929199849721,"archive_bytes":988634},{"corpus":"calgary","mode":"AES","product":"BetterZip 6.0.5","create_seconds":0.42460795798979234,"extract_seconds":0.37705925000773277,"archive_bytes":1069692},
    {"corpus":"large","mode":"ZIP","product":"Keka 1.6.7","create_seconds":0.7912332080013584,"extract_seconds":0.08523816699744202,"archive_bytes":3050988},{"corpus":"large","mode":"ZIP","product":"BetterZip 6.0.5","create_seconds":0.6708365410013357,"extract_seconds":0.37363679200643674,"archive_bytes":3391161},
    {"corpus":"large","mode":"AES","product":"Keka 1.6.7","create_seconds":0.7630635420064209,"extract_seconds":0.08076133301074151,"archive_bytes":3051138},{"corpus":"large","mode":"AES","product":"BetterZip 6.0.5","create_seconds":0.6641559169947868,"extract_seconds":0.3733820420020493,"archive_bytes":3391311},
    {"corpus":"silesia","mode":"ZIP","product":"Keka 1.6.7","create_seconds":3.873767166005564,"extract_seconds":0.7206618749914924,"archive_bytes":65636396},{"corpus":"silesia","mode":"ZIP","product":"BetterZip 6.0.5","create_seconds":0.923569167003734,"extract_seconds":1.1375400420074584,"archive_bytes":70252453},
    {"corpus":"silesia","mode":"AES","product":"Keka 1.6.7","create_seconds":3.7653130830003647,"extract_seconds":0.6972824999975273,"archive_bytes":65636996},{"corpus":"silesia","mode":"AES","product":"BetterZip 6.0.5","create_seconds":0.9300607079931069,"extract_seconds":1.1383479590003844,"archive_bytes":70253053},
    {"corpus":"enwik8","mode":"ZIP","product":"Keka 1.6.7","create_seconds":8.133597792009823,"extract_seconds":0.4007681670045713,"archive_bytes":35194976},{"corpus":"enwik8","mode":"ZIP","product":"BetterZip 6.0.5","create_seconds":2.2005729999946197,"extract_seconds":0.6534427090082318,"archive_bytes":37907880},
    {"corpus":"enwik8","mode":"AES","product":"Keka 1.6.7","create_seconds":8.135181541991187,"extract_seconds":0.4098433329927502,"archive_bytes":35195026},{"corpus":"enwik8","mode":"AES","product":"BetterZip 6.0.5","create_seconds":2.221020500001032,"extract_seconds":0.8883273749961518,"archive_bytes":37907930},
    {"corpus":"enwik9","mode":"ZIP","product":"Keka 1.6.7","create_seconds":75.74819820800622,"extract_seconds":3.1886642500030575,"archive_bytes":312712310},{"corpus":"enwik9","mode":"ZIP","product":"BetterZip 6.0.5","create_seconds":13.171403374988586,"extract_seconds":3.459301958006108,"archive_bytes":336979330},
    {"corpus":"enwik9","mode":"AES","product":"Keka 1.6.7","create_seconds":81.53664449999633,"extract_seconds":3.251334083004622,"archive_bytes":312712360},{"corpus":"enwik9","mode":"AES","product":"BetterZip 6.0.5","create_seconds":13.161696416995255,"extract_seconds":3.4524384579999605,"archive_bytes":336979380},
    {"corpus":"artificial","mode":"ZIP","product":"Keka 1.6.7","create_seconds":0.06021191700710915,"extract_seconds":0.046530125007848255,"archive_bytes":76691},{"corpus":"artificial","mode":"ZIP","product":"BetterZip 6.0.5","create_seconds":0.451168833009433,"extract_seconds":0.40760754101211205,"archive_bytes":78430},
    {"corpus":"artificial","mode":"AES","product":"Keka 1.6.7","create_seconds":0.061064666995662265,"extract_seconds":0.047333000009530224,"archive_bytes":76891},{"corpus":"artificial","mode":"AES","product":"BetterZip 6.0.5","create_seconds":0.4524649580125697,"extract_seconds":0.4074847919982858,"archive_bytes":78630}
  ]
}