From 15ea7f40cd7302b9bf9f0aea0d85a970a8a7c07f Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Fri, 9 Jan 2026 23:26:31 +0200
Subject: Add Log4j2 benchmark tool

- Configurable thread count, duration, message size
- Multiple logging configurations: sync-immediate, sync-buffered
- AsyncLogger variants: 1k, 4k, 10k, 1m ring buffer sizes
- AsyncAppender variants: 1k, 4k, 10k, 1m buffer sizes
- Subprocess isolation for proper async logger initialization
- Cache dropping between tests for accurate benchmarks
- CSV output support
---
 src/main/resources/log4j2-async-10k.xml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/main/resources/log4j2-async-10k.xml

(limited to 'src/main/resources/log4j2-async-10k.xml')

diff --git a/src/main/resources/log4j2-async-10k.xml b/src/main/resources/log4j2-async-10k.xml
new file mode 100644
index 0000000..b2d26a9
--- /dev/null
+++ b/src/main/resources/log4j2-async-10k.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN">
+    <Appenders>
+        <File name="File" fileName="target/bench.log" immediateFlush="false" bufferSize="8192">
+            <PatternLayout pattern="[ASYNC-10K] %d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
+        </File>
+    </Appenders>
+    <Loggers>
+        <AsyncLogger name="bench" level="info" includeLocation="false">
+            <AppenderRef ref="File"/>
+        </AsyncLogger>
+        <Root level="info" includeLocation="false">
+            <AppenderRef ref="File"/>
+        </Root>
+    </Loggers>
+    <Properties>
+        <Property name="log4j2.asyncLoggerRingBufferSize">10240</Property>
+    </Properties>
+</Configuration>
-- 
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