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`