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: 2026-04-05T16:53:23.606653992Z

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: 28

Results

Throughput

Rank	Fixture	Score	Error	Unit
1	in-memory	1071.748	51.460	ops/us
2	chronicle-map	84.556	5.034	ops/us
3	memory-mapped-file	78.969	1.996	ops/us
4	datastore4j	58.406	2.794	ops/us
5	leveldb	32.387	5.570	ops/us
6	mapdb	29.448	1.222	ops/us
7	sqlite-jdbc-memory	3.847	0.463	ops/us
8	lmdb	3.210	0.725	ops/us
9	kryo	2.463	0.130	ops/us
10	gson	2.198	0.057	ops/us
11	sqlite-jdbc	1.862	0.492	ops/us
12	sqlite-ormlite-memory	1.018	0.347	ops/us
13	sqlite-ormlite	0.835	0.279	ops/us
14	duckdb-jdbc	0.048	0.007	ops/us

AverageTime

Rank	Fixture	Score	Error	Unit
1	in-memory	0.012	0.001	us/op
2	chronicle-map	0.150	0.017	us/op
3	memory-mapped-file	0.155	0.008	us/op
4	datastore4j	0.228	0.016	us/op
5	leveldb	0.288	0.018	us/op
6	mapdb	0.481	0.032	us/op
7	sqlite-jdbc-memory	2.964	0.191	us/op
8	lmdb	3.708	1.615	us/op
9	kryo	4.834	0.863	us/op
10	gson	5.592	0.253	us/op
11	sqlite-jdbc	6.108	0.397	us/op
12	sqlite-ormlite-memory	10.541	0.393	us/op
13	sqlite-ormlite	17.532	7.855	us/op
14	duckdb-jdbc	339.471	181.558	us/op