Java JSON Benchmark Report

The benchmark compares fory-json, Jackson, and Gson using the same data. The String group excludes UTF-8 conversion. The UTF-8 bytes group uses direct byte-array APIs when available. Gson includes String-to-UTF-8 encoding and UTF-8-to-String decoding.

cd benchmarks/java
./run_json.sh --libs fory-json,jackson,gson

Benchmark date: 2026-07-28
Source commit: bd0ca9825b3206b1a53bf27bfb180a551ab39236
Platform: Apple M4 Pro, macOS 15.7.2, arm64
JDK: 26.0.1
VM: OpenJDK 64-Bit Server VM
JMH: 1.37
Warmup: 3 iterations × 2 s
Measurement: 5 iterations × 2 s
Forks: 1; threads: 1
Mode: throughput; higher is better

String

Java JSON String benchmark throughput

UTF-8 Bytes

Java JSON UTF-8 bytes benchmark throughput

Results

Representation	Operation	fory-json ops/sec	jackson ops/sec	gson ops/sec	Fastest
String	Serialize	7,387,465	2,049,368	1,084,042	fory-json
String	Deserialize	2,897,955	1,074,885	902,772	fory-json
UTF-8 bytes	Serialize	10,375,498	1,868,614	1,037,211	fory-json
UTF-8 bytes	Deserialize	3,077,158	1,268,397	933,079	fory-json