# mongo-lite vs MongoDB benchmark
# date: 2026-08-03T08:26:46Z  git: c8d547f+dirty
# args: size=128m doc-size=8k wc=j clients=1 2 4 per-client=2000
# reproduce: bash tests/e2e/bench-run.sh 128m 8k "1 2 4"

[main]
insertOne (sequential) ×200	0.20 ms	5.9 ms
bulk insert throughput	664.4 MB/s	357.9 MB/s
docs loaded	16,384	16,384
createIndex({k: 1})	10.4 ms	45.2 ms
countDocuments({})	0.73 ms	8.6 ms
findOne({_id: <ObjectId>})	0.35 ms	0.62 ms
findOne({k: 500}) (indexed)	0.36 ms	1.2 ms
find({p: {$gte,$lt}}).count() (scan)	2.4 ms	3.2 ms
find({}).sort({_id:-1}).limit(20)	2.0 ms	2.2 ms
find({}, {proj}).limit(1000)	—	4.6 ms
aggregate $group by k	—	4.6 ms
updateOne({_id}) ×50	—	0.26 ms
updateMany({k: 7}, {$inc})	—	5.7 ms
deleteOne({_id}) + insertOne	—	4.8 ms
node client RSS	—	136 MB

[concurrency]
clients	1	8117	175	46.4x
clients	2	17102	230	74.4x
clients	4	21967	352	62.4x

[meta]
ml_rss_mb	158
md_rss_mb	251
ml_reopen	0.3s
md_reopen	0.4s
ml_disk_mb	7MB
md_disk_mb	7MB