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Benchmarks

Full benchmark results for PhpJsonChunk and comparable streaming libraries.

Compared Repositories

Methodology

  • Dataset: synthetic root-array JSON, identical for all parsers.
  • Metric: wall-clock time and peak memory delta.
  • Ordering: tables are sorted by speed (faster -> slower).
  • Runs:
    • 10k, 30k, 50k, 100k -> median of 3 runs
    • 500k, 1,000,000 -> median of 2 runs

10,000 Records (Median of 3 Runs)

Rank Parser Time Peak mem
1 PhpJsonChunk 19.8 ms 0.15 MB
2 JsonMachine 34.4 ms 0.31 MB
3 Crocodile2uJsonStreamer 38.1 ms 0.01 MB
4 Salsify 97.1 ms 0.04 MB
5 JsonCollectionParser 101.0 ms 0.04 MB
6 JsonDecodeStream 260.1 ms 0.04 MB

30,000 Records (Median of 3 Runs)

Rank Parser Time Peak mem
1 PhpJsonChunk 56.6 ms 0.15 MB
2 JsonMachine 99.4 ms 0.31 MB
3 Crocodile2uJsonStreamer 113.5 ms 0.01 MB
4 Salsify 295.0 ms 0.04 MB
5 JsonCollectionParser 303.9 ms 0.04 MB
6 JsonDecodeStream 790.2 ms 0.04 MB

50,000 Records (Median of 3 Runs)

Rank Parser Time Peak mem
1 PhpJsonChunk 94.9 ms 0.15 MB
2 JsonMachine 165.4 ms 0.31 MB
3 Crocodile2uJsonStreamer 190.4 ms 0.01 MB
4 Salsify 494.2 ms 0.03 MB
5 JsonCollectionParser 508.9 ms 0.03 MB
6 JsonDecodeStream 1292.6 ms 0.04 MB

100,000 Records (Median of 3 Runs)

Rank Parser Time Peak mem
1 PhpJsonChunk 190.3 ms 0.15 MB
2 JsonMachine 330.0 ms 0.31 MB
3 Crocodile2uJsonStreamer 383.2 ms 0.01 MB
4 Salsify 980.2 ms 0.04 MB
5 JsonCollectionParser 1025.8 ms 0.04 MB
6 JsonDecodeStream 2585.6 ms 0.04 MB

500,000 Records (Median of 2 Runs)

Rank Parser Time Peak mem
1 PhpJsonChunk 1001.0 ms 0.15 MB
2 JsonMachine 1644.1 ms 0.31 MB
3 Crocodile2uJsonStreamer 1966.9 ms 0.01 MB
4 Salsify 5074.0 ms 0.03 MB
5 JsonCollectionParser 5267.0 ms 0.03 MB
6 JsonDecodeStream 13483.7 ms 0.04 MB

1,000,000 Records (Median of 2 Runs)

Rank Parser Time Peak mem
1 PhpJsonChunk 1893.0 ms 0.15 MB
2 JsonMachine 3294.3 ms 0.31 MB
3 Crocodile2uJsonStreamer 3854.8 ms 0.01 MB
4 Salsify 9829.5 ms 0.03 MB
5 JsonCollectionParser 10593.6 ms 0.03 MB
6 JsonDecodeStream 26499.0 ms 0.04 MB

Reproduce

composer benchmark
php bin/benchmark.php --runs=5 --sizes=10000,50000,100000

Benchmark results depend on hardware, PHP version, and OS. Prefer median values from multiple runs.