[LOG4J2-3255] Performance Benchmarking shows 20% degradation in FileAppenderBenchmark.log4j2file between Log4j2 v2.12.0 & v2.16.0 - ASF JIRA

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Type: Bug
Status: Open
Priority: Major
Resolution: Unresolved
Affects Version/s: 2.16.0
Fix Version/s: None
Component/s: Core
Labels:
None
Environment:
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Mac

JMH version: 1.21

VM version: JDK 9, OpenJDK 64-Bit Server VM, 9+181

VM invoker: /Library/Java/JavaVirtualMachines/adoptopenjdk-9.jdk/Contents/Home/bin/java

VM options: --add-exports=java.base/jdk.internal.ref=ALL-UNNAMED

Warmup: 10 iterations, 10 s each

Measurement: 20 iterations, 10 s each

Timeout: 10 min per iteration

Threads: 1 thread, will synchronize iterations

Benchmark mode: Throughput, ops/time

Benchmark: org.apache.logging.log4j.perf.jmh.FileAppenderBenchmark.log4j2file
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Mac JMH version: 1.21 VM version: JDK 9, OpenJDK 64-Bit Server VM, 9+181 VM invoker: /Library/Java/JavaVirtualMachines/adoptopenjdk-9.jdk/Contents/Home/bin/java VM options: --add-exports=java.base/jdk.internal.ref=ALL-UNNAMED Warmup: 10 iterations, 10 s each Measurement: 20 iterations, 10 s each Timeout: 10 min per iteration Threads: 1 thread, will synchronize iterations Benchmark mode: Throughput, ops/time Benchmark: org.apache.logging.log4j.perf.jmh.FileAppenderBenchmark.log4j2file

Performance Benchmarking shows 20% degradation in FileAppenderBenchmark.log4j2file between Log4j2 v2.12.0 & v2.16.0

Benchmark	2.12.0 op/sec	2.16.0 op/sec
FileAppenderBenchmark.log4j2File	84115.661	68789.212