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: 2026-04-06T06:39:34.312411714Z

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	1093.921	12.329	ops/us
2	memory-mapped-file	80.113	1.513	ops/us
3	datastore4j	59.887	2.537	ops/us
4	leveldb	35.927	0.868	ops/us
5	mapdb	31.251	1.159	ops/us
6	sqlite-jdbc-memory	4.285	0.286	ops/us
7	lmdb	3.372	2.250	ops/us
8	kryo	2.722	0.171	ops/us
9	gson	2.342	0.077	ops/us
10	sqlite-jdbc	2.061	0.052	ops/us
11	sqlite-ormlite-memory	1.229	0.034	ops/us
12	sqlite-ormlite	0.948	0.036	ops/us
13	duckdb-jdbc	0.054	0.005	ops/us
-	ikv-store	FAILED	-	n/a
-	chronicle-map	FAILED	-	n/a

AverageTime

Rank	Fixture	Score	Error	Unit
1	in-memory	0.011	0.000	us/op
2	memory-mapped-file	0.149	0.004	us/op
3	datastore4j	0.194	0.003	us/op
4	leveldb	0.357	0.015	us/op
5	mapdb	0.557	0.014	us/op
6	sqlite-jdbc-memory	2.820	0.056	us/op
7	lmdb	3.752	1.071	us/op
8	kryo	4.420	0.336	us/op
9	gson	5.168	0.582	us/op
10	sqlite-jdbc	5.783	0.145	us/op
11	sqlite-ormlite-memory	9.801	0.351	us/op
12	sqlite-ormlite	12.611	0.307	us/op
13	duckdb-jdbc	222.187	5.408	us/op
-	ikv-store	FAILED	-	n/a
-	chronicle-map	FAILED	-	n/a