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|
{
"version": 1,
"written_before_measurement": true,
"seed": 20260923,
"repeats": 5,
"policies": [
{
"name": "borrow",
"policy": "borrow"
},
{
"name": "copy",
"policy": "copy"
},
{
"name": "shared_copy",
"policy": "shared_copy"
},
{
"name": "threshold2",
"policy": "threshold",
"ratio": 2
},
{
"name": "threshold8",
"policy": "threshold",
"ratio": 8
},
{
"name": "compact",
"policy": "compact",
"ratio": 2
},
{
"name": "copy_no_pool",
"policy": "copy",
"pool": 0
}
],
"cases": [
{
"name": "one_slow",
"shape": "large",
"records": 1024,
"keys": [
"tag"
],
"hold_us": [
8000
],
"service_us": [
0
],
"budget": 8388608,
"slots": 64
},
{
"name": "three_distinct_speeds",
"shape": "large",
"records": 1024,
"keys": [
"body",
"tag",
"tag"
],
"hold_us": [
0,
5000,
8000
],
"service_us": [
0,
0,
0
],
"budget": 8388608,
"slots": 64
},
{
"name": "same_large_field",
"shape": "large",
"records": 1024,
"keys": [
"body",
"body",
"body"
],
"hold_us": [
0,
5000,
8000
],
"service_us": [
0,
0,
0
],
"budget": 8388608,
"slots": 64
},
{
"name": "slow_large_field",
"shape": "large",
"records": 1024,
"keys": [
"tag",
"tag",
"body"
],
"hold_us": [
0,
5000,
8000
],
"service_us": [
0,
0,
0
],
"budget": 8388608,
"slots": 64
},
{
"name": "mixed_tight",
"shape": "mixed",
"records": 1024,
"keys": [
"body",
"tag",
"tag"
],
"hold_us": [
0,
5000,
8000
],
"service_us": [
0,
0,
0
],
"budget": 2097152,
"slots": 64
},
{
"name": "metadata_heavy",
"shape": "metadata",
"records": 512,
"keys": [
"body",
"tag",
"tag"
],
"hold_us": [
0,
5000,
8000
],
"service_us": [
0,
0,
0
],
"budget": 2097152,
"slots": 64
}
],
"expectations": [
"A slow small-field consumer can retain the input after a fast large-field consumer finishes.",
"Sharing identical compact copies can remove duplicate per-consumer copies without a new runtime.",
"Late compaction may save copied bytes or fail to beat early size-based copying; all remaining owners matter.",
"Parser temporary memory and reader growth must be charged, even when retained selections are small.",
"No novel-policy advantage or production service SLO is presumed."
],
"comparison_rule": "Report all fixed presets; exploratory measurements, no trained/held-out policy or significance claim.",
"limits": "Real yyjson parser and actual bytes, but synthetic NDJSON corpus and sink delays, three synchronous consumers in one event loop, no open-loop arrivals, thread races, durable output, or independent parser comparison."
}
|
