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SAP / cf-java-logging-support

The Java Logging Support for Cloud Foundry supports the creation of structured log messages and the collection of request metrics
Apache License 2.0
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Introduce JHM Benchmarking for Log Backends #137

Closed KarstenSchnitter closed 2 years ago

KarstenSchnitter commented 2 years ago

Changes to the JSON encoding and messages generation overall may impact the library performance and with this the application performance. To provide a toolset to measure impact of changes in future, the Java Microbenchmarking Harness (JMH) was introduce with a few simple benchmarks. The are implemented separately for log4j2 and logback. The current results from my machine are as follow:

Logback:

Benchmark                                          Mode  Cnt       Score       Error  Units
EncodingBenchmarks.minimalRequestRecord           thrpt    5   84562,416 ±  8912,890  ops/s
EncodingBenchmarks.simpleLog                      thrpt    5  115365,061 ± 15645,826  ops/s
EncodingBenchmarks.singleCommonFieldFromMdc       thrpt    5  113844,805 ±  3235,766  ops/s
EncodingBenchmarks.singleCustomFieldFromArgument  thrpt    5  109952,525 ±  9775,466  ops/s

Log4j2:

Benchmark                                          Mode  Cnt       Score       Error  Units
EncodingBenchmarks.minimalRequestRecord           thrpt    5  114756,173 ±  7212,135  ops/s
EncodingBenchmarks.simpleLog                      thrpt    5  170957,170 ±  2546,579  ops/s
EncodingBenchmarks.singleCommonFieldFromMdc       thrpt    5  164589,191 ± 29621,024  ops/s
EncodingBenchmarks.singleCustomFieldFromArgument  thrpt    5  173940,242 ± 24513,865  ops/s

Signed-off-by: Karsten Schnitter k.schnitter@sap.com