Results / results/expH_capture_cost_frontier/20260812T061824Z_run2_M3U96a/results.json
{
"experiment": "expH_capture_cost_frontier",
"run": 2,
"scope": "storage formats, COLD cache (purge per repeat), second hardware",
"config": {
"rows": 200000,
"dim": 4096,
"write_chunk": 4096,
"batch": 4096,
"n_batches": 24,
"repeats": 3,
"purge_cmd": "echo 492592 | sudo -S purge",
"seed": 0
},
"manifest": {
"author": "Simon-Pierre Boucher",
"chip": "Apple M3 Ultra",
"cores": 28,
"unified_gb": 96,
"os": "26.6",
"python": "3.14.5",
"numpy": "2.5.2",
"host": "MacStudnpierre2"
},
"storage": [
{
"format": "raw-mmap",
"op": "write",
"bytes": 1638400000,
"seconds": [
0.9577836249954998
],
"gb_per_s_mean": 1.5931353036623166,
"cache": "warm"
},
{
"format": "raw-mmap",
"op": "seq-scan",
"bytes": 1638400000,
"seconds": [
2.311261749942787,
2.483271957957186,
2.3612381250131875
],
"gb_per_s_mean": 0.6397125042046533,
"cache": "cold"
},
{
"format": "raw-mmap",
"op": "random-batch",
"bytes": 805306368,
"seconds": [
5.556866124970838,
5.391185167012736,
4.8900218330090865
],
"gb_per_s_mean": 0.14206273593026125,
"cache": "cold"
},
{
"format": "safetensors",
"op": "write",
"bytes": 1638400000,
"seconds": [
1.8997217500582337
],
"gb_per_s_mean": 0.8032117894124369,
"cache": "warm"
},
{
"format": "safetensors",
"op": "seq-scan",
"bytes": 1638400000,
"seconds": [
2.492816833080724,
2.518700583023019,
3.5813771249959245
],
"gb_per_s_mean": 0.5327234841362526,
"cache": "cold"
},
{
"format": "safetensors",
"op": "random-batch",
"bytes": 805306368,
"seconds": [
2.43777041696012,
2.4196586669422686,
2.2487994579132646
],
"gb_per_s_mean": 0.31662364737640725,
"cache": "cold"
},
{
"format": "zarr-uncompressed",
"op": "write",
"bytes": 1638400000,
"seconds": [
0.7715847919462249
],
"gb_per_s_mean": 1.9775906966765944,
"cache": "warm"
},
{
"format": "zarr-uncompressed",
"op": "seq-scan",
"bytes": 1638400000,
"seconds": [
0.43666258302982897,
0.4407244159374386,
0.4407702499302104
],
"gb_per_s_mean": 3.4727546524352753,
"cache": "cold"
},
{
"format": "zarr-uncompressed",
"op": "random-batch",
"bytes": 805306368,
"seconds": [
1.3796995830489323,
1.139681207947433,
1.1073772499803454
],
"gb_per_s_mean": 0.6203887809935233,
"cache": "cold"
},
{
"format": "zarr-zstd",
"op": "write",
"bytes": 1638400000,
"seconds": [
1.9146007499657571
],
"gb_per_s_mean": 0.7969697631620015,
"cache": "warm"
},
{
"format": "zarr-zstd",
"op": "seq-scan",
"bytes": 1638400000,
"seconds": [
0.47764337505213916,
0.4796952080214396,
0.48077000002376735
],
"gb_per_s_mean": 3.183095332684026,
"cache": "cold"
},
{
"format": "zarr-zstd",
"op": "random-batch",
"bytes": 805306368,
"seconds": [
3.880511499941349,
4.199512624996714,
3.8756266250275075
],
"gb_per_s_mean": 0.18819552754219418,
"cache": "cold"
}
],
"commit": "f3dd60ef6bed19c96456381481abb0aa50b83b73"
}