data-access-benchmark/README.md

data-access-benchmark

mvn package -q
java -jar target/benchmarks.jar

# optional: suppress JDK warning from the launcher JVM
java --sun-misc-unsafe-memory-access=allow -jar target/benchmarks.jar

Benchmark Results (auto-updated)

This section is automatically refreshed by the app after each benchmark run. Only the content between the markers below is rewritten, so the rest of this README stays untouched.

Last updated: 2026-04-05T17:50:24.432296204Z

System info

• OS: Linux 6.12.74+deb13+1-amd64 (amd64)
• Java: 25.0.2 (vendor: Microsoft)
• JVM: OpenJDK 64-Bit Server VM 25.0.2+10-LTS
• CPU model: AMD Ryzen 5 9600X 6-Core Processor
• Total physical memory: 80078 MB
• Available processors: 12
• Max heap: 20032 MB

Run context

• Benchmark: com.benchmark.benchmarks.DataAccessBenchmark.readSingleUser
• Thread count: 12
• Fixtures in this snapshot: 26

Results

Throughput

Rank	Fixture	Score	Error	Unit
1	in-memory	1089.340	31.288	ops/us
2	memory-mapped-file	79.877	2.664	ops/us
3	datastore4j	62.734	2.530	ops/us
4	leveldb	31.035	4.986	ops/us
5	mapdb	30.965	1.710	ops/us
6	sqlite-jdbc-memory	4.250	0.107	ops/us
7	lmdb	3.350	1.844	ops/us
8	kryo	2.648	0.213	ops/us
9	gson	2.314	0.125	ops/us
10	sqlite-jdbc	2.032	0.320	ops/us
11	sqlite-ormlite-memory	1.215	0.049	ops/us
12	sqlite-ormlite	0.931	0.037	ops/us
13	duckdb-jdbc	0.054	0.002	ops/us

AverageTime

Rank	Fixture	Score	Error	Unit
1	in-memory	0.011	0.000	us/op
2	memory-mapped-file	0.151	0.005	us/op
3	datastore4j	0.190	0.013	us/op
4	leveldb	0.330	0.017	us/op
5	mapdb	0.583	0.066	us/op
6	sqlite-jdbc-memory	2.885	0.233	us/op
7	lmdb	3.364	1.158	us/op
8	kryo	4.503	0.211	us/op
9	gson	5.175	0.574	us/op
10	sqlite-jdbc	5.827	0.302	us/op
11	sqlite-ormlite-memory	9.907	0.441	us/op
12	sqlite-ormlite	12.929	0.427	us/op
13	duckdb-jdbc	226.375	13.410	us/op