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阿里巴巴 MySQL binlog 增量订阅&消费组件

0 0 16 Java

refactor(canal/adapter): improve perf (#5548)

- String.format is lower than StringBuilder. Benchmark like below:

code snippet:

String str = String.format("%s-%s-%s", 0, 1, 10);

Benchmark                         Mode     Cnt         Score    Error  Units
StringBenchmark.append           thrpt          46431458.255           ops/s
StringBenchmark.format           thrpt            985724.313           ops/s
StringBenchmark.append            avgt                ≈ 10⁻⁸            s/op
StringBenchmark.format            avgt                ≈ 10⁻⁶            s/op
StringBenchmark.append          sample  364232        ≈ 10⁻⁷            s/op
StringBenchmark.append:p0.00    sample                ≈ 10⁻⁸            s/op
StringBenchmark.append:p0.50    sample                ≈ 10⁻⁷            s/op
StringBenchmark.append:p0.90    sample                ≈ 10⁻⁷            s/op
StringBenchmark.append:p0.95    sample                ≈ 10⁻⁷            s/op
StringBenchmark.append:p0.99    sample                ≈ 10⁻⁷            s/op
StringBenchmark.append:p0.999   sample                ≈ 10⁻⁷            s/op
StringBenchmark.append:p0.9999  sample                ≈ 10⁻⁵            s/op
StringBenchmark.append:p1.00    sample                 0.001            s/op
StringBenchmark.format          sample  336220        ≈ 10⁻⁶            s/op
StringBenchmark.format:p0.00    sample                ≈ 10⁻⁶            s/op
StringBenchmark.format:p0.50    sample                ≈ 10⁻⁶            s/op
StringBenchmark.format:p0.90    sample                ≈ 10⁻⁶            s/op
StringBenchmark.format:p0.95    sample                ≈ 10⁻⁶            s/op
StringBenchmark.format:p0.99    sample                ≈ 10⁻⁶            s/op
StringBenchmark.format:p0.999   sample                ≈ 10⁻⁵            s/op
StringBenchmark.format:p0.9999  sample                ≈ 10⁻⁴            s/op
StringBenchmark.format:p1.00    sample                 0.001            s/op
StringBenchmark.append              ss                ≈ 10⁻⁶            s/op
StringBenchmark.format              ss                ≈ 10⁻⁵            s/op
S
sunxien committed
79338be02d9881cadc25cd1f5af33a59cdd80658
Parent: d18bde7
Committed by GitHub <noreply@github.com> on 12/25/2025, 3:49:06 AM