# mongo-lite vs MongoDB benchmark
# date: 2026-08-03T08:36:09Z  git: c8d547f+dirty
# args: size=1g doc-size=16k wc=j clients=1 4 8 16 32 per-client=2000
# reproduce: bash tests/e2e/bench-run.sh 1g 16k "1 4 8 16 32"

[main]
insertOne (sequential) ×200	0.20 ms	4.9 ms
bulk insert throughput	748.8 MB/s	685.2 MB/s
docs loaded	65,536	65,536
createIndex({k: 1})	79.8 ms	86.6 ms
countDocuments({})	3.4 ms	13.6 ms
findOne({_id: <ObjectId>})	0.71 ms	0.61 ms
findOne({k: 500}) (indexed)	0.66 ms	2.0 ms
find({p: {$gte,$lt}}).count() (scan)	13.5 ms	12.4 ms
find({}).sort({_id:-1}).limit(20)	2.3 ms	2.6 ms
find({}, {proj}).limit(1000)	3.6 ms	4.4 ms
aggregate $group by k	9.5 ms	13.7 ms
updateOne({_id}) ×50	0.14 ms	0.18 ms
updateMany({k: 7}, {$inc})	2.1 ms	6.1 ms
deleteOne({_id}) + insertOne	0.73 ms	5.0 ms
node client RSS	160 MB	153 MB

[concurrency]
clients	1	8816	203	43.4x
clients	4	22142	472	46.9x
clients	8	27716	967	28.7x
clients	16	32031	1858	17.2x
clients	32		3759	0.0x

[meta]
ml_rss_mb	547
md_rss_mb	1317
ml_reopen	0.8s
md_reopen	1.3s
ml_disk_mb	97MB
md_disk_mb	89MB