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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