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84 changes: 84 additions & 0 deletions
84
samurai-swing/src/main/java/one/cafebabe/samurai/gc/OpenJDKZGCParser.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| /* | ||
| * Copyright 2003-2012 Yusuke Yamamoto | ||
| * | ||
| * Licensed 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 one.cafebabe.samurai.gc; | ||
|
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| import one.cafebabe.samurai.util.GUIResourceBundle; | ||
| import one.cafebabe.samurai.util.LineGraphDataSourceParser; | ||
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| import java.awt.*; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
|
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| /** | ||
| * supports OpenJDK ZGC log | ||
| */ | ||
| public class OpenJDKZGCParser implements LineGraphDataSourceParser { | ||
| public OpenJDKZGCParser() { | ||
| } | ||
|
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| private static final GUIResourceBundle resources = GUIResourceBundle.getInstance(); | ||
| private LineGraph lineGraph = null; | ||
| private int memoryMax = 0; | ||
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| // [1.190s][info][gc] GC(0) Garbage Collection (Warmup) 14M(11%)->6M(5%) | ||
| private final static Pattern pattern = Pattern.compile("([0-9]+)M\\(([0-9]+)%\\)->([0-9]+)M\\(([0-9]+)%\\)"); | ||
|
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| /** | ||
| * parse | ||
| * | ||
| * @param line String | ||
| * @return boolean | ||
| */ | ||
| public boolean parse(String line, LineGraphRenderer renderer) { | ||
| int gcIndex = line.indexOf(") Garbage Collection ("); | ||
| if (gcIndex != -1) { | ||
| try { | ||
| Matcher matcher = pattern.matcher(line); | ||
| if (!matcher.find() || matcher.groupCount() != 4) { | ||
| return false; | ||
| } | ||
|
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| int memoryBefore = Integer.parseInt(matcher.group(1)); | ||
| int memoryAfter = Integer.parseInt(matcher.group(3)); | ||
| int percentageBefore = Integer.parseInt(matcher.group(2)); | ||
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| int currentMemoryMax = memoryBefore * 100 / percentageBefore; | ||
| if (null == lineGraph) { | ||
| lineGraph = renderer.addLineGraph(resources.getMessage("GraphPanel.memory"), new String[]{ | ||
| resources.getMessage("GraphPanel.memoryBeforeGC"), | ||
| resources.getMessage("GraphPanel.memoryAfterGC")}); | ||
| lineGraph.setColorAt(0, Color.RED); | ||
| lineGraph.setColorAt(1, Color.YELLOW); | ||
| } | ||
| try { | ||
| if (memoryMax < currentMemoryMax) { | ||
| memoryMax = currentMemoryMax; | ||
| lineGraph.setYMax(0, memoryMax); | ||
| lineGraph.setYMax(1, memoryMax); | ||
| } | ||
| lineGraph.addValues(new double[]{memoryBefore, memoryAfter}); | ||
| return true; | ||
| } catch (NumberFormatException wasNotGC) { | ||
| // wasNotGC.printStackTrace(); | ||
| //does nothing | ||
| } | ||
| } catch (StringIndexOutOfBoundsException sioobe) { | ||
| // System.err.println("unexpected format:" + line); | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
| } |
3 changes: 2 additions & 1 deletion
3
samurai-swing/src/main/resources/one/cafebabe/samurai/swing/messages.properties
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64 changes: 64 additions & 0 deletions
64
samurai-swing/src/test/java/one/cafebabe/samurai/gc/TestOpenJDKZGCParser.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| /* | ||
| * Copyright 2021 Yusuke Yamamoto | ||
| * | ||
| * Licensed 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 one.cafebabe.samurai.gc; | ||
|
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| import org.junit.jupiter.api.Test; | ||
| import org.junit.jupiter.api.parallel.Execution; | ||
| import org.junit.jupiter.api.parallel.ExecutionMode; | ||
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| import java.io.BufferedReader; | ||
| import java.io.IOException; | ||
| import java.io.InputStreamReader; | ||
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| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
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| @SuppressWarnings("ConstantConditions") | ||
| @Execution(ExecutionMode.CONCURRENT) | ||
| class TestOpenJDKZGCParser extends AbstractGraphTest { | ||
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| @Test | ||
| void zgc() throws IOException { | ||
| OpenJDKZGCParser parser = new OpenJDKZGCParser(); | ||
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| try (var br = new BufferedReader( | ||
| new InputStreamReader( | ||
| TestOpenJDKZGCParser.class. | ||
| getResourceAsStream("/one/cafebabe/samurai/gc/jdk17-verbosegc-ZGC.log")))) { | ||
| parser.parse(br.readLine(), this); | ||
| parser.parse(br.readLine(), this); | ||
| //[1.190s][info][gc] GC(0) Garbage Collection (Warmup) 14M(11%)->6M(5%) | ||
| expected.add(new double[]{ | ||
| 14d, 6d | ||
| }); | ||
| expectedMax.add(127d); | ||
| expectedMax.add(127d); | ||
| parser.parse(br.readLine(), this); | ||
| //[2.816s][info][gc] GC(1) Garbage Collection (Warmup) 28M(22%)->28M(22%) | ||
| expected.add(new double[]{ | ||
| 28d, 28d | ||
| }); | ||
| parser.parse(br.readLine(), this); | ||
| parser.parse(br.readLine(), this); | ||
| parser.parse(br.readLine(), this); | ||
| parser.parse(br.readLine(), this); | ||
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| assertEquals(2, count); | ||
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| } | ||
| } | ||
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|
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| } |