Feature/upgrade protobuf #5460
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Feature/upgrade protobuf #5460
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- adapter 默认提供prometheus暴露JVM指标 - 指定 maven-antrun-plugin 未指定版本号，默认是 3.0.0，但是配置中使用 <tasks> 标签，编译报错。 - 降级版本号，显式指定 1.8 版本 - 或者把配置中的 <tasks> 标签改成 <target>
- 提升30%以上的性能 - 顺便解决protobuf历来版本的安全漏洞
- FastJSON2 内存保护机制，默认64MB，超过则抛出OutOfMemory异常
- 见：JSONWriter.ensureCapacity
- 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
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升级 protobuf 版本，性能提升