| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.logging.log4j.core; |
| |
| import org.apache.logging.log4j.core.async.AsyncLoggerContextSelector; |
| import org.apache.logging.log4j.core.test.GcFreeLoggingTestUtil; |
| import org.junit.jupiter.api.Tag; |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Verifies steady state logging is GC-free. |
| * |
| * @see <a href="https://github.com/google/allocation-instrumenter">https://github.com/google/allocation-instrumenter</a> |
| */ |
| @Tag("allocation") |
| @Tag("functional") |
| public class GcFreeAsynchronousLoggingTest { |
| |
| @Test |
| public void testNoAllocationDuringSteadyStateLogging() throws Throwable { |
| GcFreeLoggingTestUtil.runTest(getClass()); |
| } |
| |
| /** |
| * This code runs in a separate process, instrumented with the Google Allocation Instrumenter. |
| */ |
| public static void main(final String[] args) throws Exception { |
| System.setProperty("log4j2.garbagefree.threadContextMap", "true"); |
| System.setProperty("AsyncLogger.RingBufferSize", "128"); // minimum ringbuffer size |
| System.setProperty("Log4jContextSelector", AsyncLoggerContextSelector.class.getName()); |
| GcFreeLoggingTestUtil.executeLogging("gcFreeLogging.xml", GcFreeAsynchronousLoggingTest.class); |
| } |
| } |