├── .gitignore
├── JavaFlames.java
├── Profile.java
├── README.md
├── config.jfc
└── index.html


/.gitignore:
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1 | /JavaFlames.iml
2 | 


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/JavaFlames.java:
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  1 | import com.sun.net.httpserver.HttpServer;
  2 | import jdk.jfr.consumer.RecordedEvent;
  3 | import jdk.jfr.consumer.RecordedFrame;
  4 | import jdk.jfr.consumer.RecordedMethod;
  5 | import jdk.jfr.consumer.RecordingFile;
  6 | 
  7 | import java.awt.Desktop;
  8 | import java.io.FileInputStream;
  9 | import java.io.IOException;
 10 | import java.io.UncheckedIOException;
 11 | import java.net.InetSocketAddress;
 12 | import java.net.URI;
 13 | import java.nio.charset.StandardCharsets;
 14 | import java.nio.file.Files;
 15 | import java.nio.file.Path;
 16 | import java.nio.file.Paths;
 17 | import java.util.ArrayDeque;
 18 | import java.util.List;
 19 | import java.util.Objects;
 20 | import java.util.function.Consumer;
 21 | import java.util.function.Function;
 22 | import java.util.function.Supplier;
 23 | import java.util.stream.Collectors;
 24 | import java.util.stream.Stream;
 25 | 
 26 | public class JavaFlames {
 27 | 
 28 |     private static final int HTTP_PORT = 8090;
 29 |     private static final String PATH_TO_DATA = "data";
 30 | 
 31 |     public static void main(String[] args) throws IOException {
 32 |         if (args.length != 1) {
 33 |             exit(1, "expected jfr input file as argument");
 34 |         }
 35 |         var jfrFile = Paths.get(args[0]);
 36 |         if (!Files.exists(jfrFile)) {
 37 |             exit(2, jfrFile + " not found.");
 38 |         }
 39 |         startHttpServer(jfrFile);
 40 | 
 41 |         var url = "http://localhost:%d?baseLineInput=%s&baseLineTitle=%s".formatted(HTTP_PORT, PATH_TO_DATA, jfrFile.toFile().getName());
 42 |         if (Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE)) {
 43 |             Desktop.getDesktop().browse(URI.create(url));
 44 |         } else {
 45 |             System.out.println("Done! Open a browser and point it to: " + url);
 46 |         }
 47 |     }
 48 | 
 49 |     private static void exit(int code, String message) {
 50 |         System.err.println(message);
 51 |         System.exit(code);
 52 |     }
 53 | 
 54 |     private static void startHttpServer(Path jfrFile) throws IOException {
 55 |         var httpServer = HttpServer.create(new InetSocketAddress("localhost", HTTP_PORT), 0);
 56 |         httpServer.createContext("/", exchange -> {
 57 |             final Path htmlPage = Paths.get("index.html");
 58 |             exchange.sendResponseHeaders(200, Files.size(htmlPage));
 59 |             try (var responseBody = exchange.getResponseBody(); var fis = new FileInputStream(htmlPage.toFile())) {
 60 |                 fis.transferTo(responseBody);
 61 |             }
 62 |         });
 63 |         httpServer.createContext("/" + PATH_TO_DATA, exchange -> {
 64 |             exchange.sendResponseHeaders(200, 0);
 65 |             try(var responseBody = exchange.getResponseBody()){
 66 |                 produceFlameGraphLog(jfrFile).forEach(io(line -> responseBody.write(line.getBytes(StandardCharsets.UTF_8))));
 67 |             }
 68 |             System.exit(0);
 69 |         });
 70 |         httpServer.start();
 71 |     }
 72 | 
 73 |     public static Stream<String> produceFlameGraphLog(final Path jfrRecording) throws IOException {
 74 |         var recordingFile = new RecordingFile(jfrRecording);
 75 |         return extractEvents(recordingFile)
 76 |                 .filter(it -> "jdk.ExecutionSample".equalsIgnoreCase(it.getEventType().getName()))
 77 |                 .map(event -> collapseFrames(event.getStackTrace().getFrames()))
 78 |                 .collect(Collectors.groupingBy(Function.identity(), Collectors.counting()))
 79 |                 .entrySet().stream().map(e -> "%s %d\n".formatted(e.getKey(), e.getValue()))
 80 |                 .onClose(io(recordingFile::close));
 81 |     }
 82 | 
 83 |     private static String collapseFrames(List<RecordedFrame> frames) {
 84 |         var methodNames = new ArrayDeque<String>(frames.size());
 85 |         for (var frame : frames) {
 86 |             final RecordedMethod method = frame.getMethod();
 87 |             methodNames.addFirst("%s::%s".formatted(method.getType().getName(), method.getName()));
 88 |         }
 89 |         return String.join(";", methodNames);
 90 |     }
 91 | 
 92 |     private static Stream<RecordedEvent> extractEvents(RecordingFile recordingFile) {
 93 |         return Stream.generate(() -> 
 94 |             recordingFile.hasMoreEvents() ? 
 95 |                 io(recordingFile::readEvent).get() : 
 96 |                 null
 97 |         ).takeWhile(Objects::nonNull);
 98 |     }
 99 | 
100 |     // Helpers for dealing with checked IOException's in lambdas
101 | 
102 |     @FunctionalInterface
103 |     interface IORunnable {
104 |         void run() throws IOException;
105 |     }
106 | 
107 |     @FunctionalInterface
108 |     interface IOConsumer<T> {
109 |         void apply(T input) throws IOException;
110 |     }
111 | 
112 |     @FunctionalInterface
113 |     interface IOSupplier<T> {
114 |         T get() throws IOException;
115 |     }
116 | 
117 |     private static <T> Supplier<T> io(IOSupplier<T> supplier) {
118 |         return () -> {
119 |             try {
120 |                 return supplier.get();
121 |             } catch (final IOException e) {
122 |                 throw new UncheckedIOException(e);
123 |             }
124 |         };
125 |     }
126 | 
127 |     private static <T> Consumer<T> io(IOConsumer<T> consumer) {
128 |         return t -> {
129 |             try {
130 |                 consumer.apply(t);
131 |             } catch (final IOException e) {
132 |                 throw new UncheckedIOException(e);
133 |             }
134 |         };
135 |     }
136 | 
137 |     private static Runnable io(IORunnable runnable) {
138 |         return () -> {
139 |             try {
140 |                 runnable.run();
141 |             } catch (final IOException e) {
142 |                 throw new UncheckedIOException(e);
143 |             }
144 |         };
145 |     }
146 | }
147 | 


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/Profile.java:
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  1 | import java.io.BufferedReader;
  2 | import java.io.IOException;
  3 | import java.io.InputStreamReader;
  4 | import java.nio.file.Files;
  5 | import java.nio.file.Path;
  6 | import java.nio.file.Paths;
  7 | import java.text.SimpleDateFormat;
  8 | import java.time.Duration;
  9 | import java.time.LocalTime;
 10 | import java.util.Date;
 11 | import java.util.concurrent.TimeUnit;
 12 | 
 13 | public class Profile {
 14 |     private static final String NOW = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
 15 |     private static final Path LOG_FILE_NAME = Paths.get("log" + NOW + ".jfr").toAbsolutePath();
 16 |     private static final Path CONFIG_FILE_NAME = Paths.get("config.jfc").toAbsolutePath();
 17 |     private static final String PROFILING_NAME = "temp";
 18 |     private static final Duration DEFAULT_DURATION = Duration.ofSeconds(30);
 19 | 
 20 |     public static void main(String[] args) {
 21 |         try {
 22 |             run(args);
 23 |         } catch (Exception throwable) {
 24 |             throwable.printStackTrace();
 25 |             exit(99, "Encountered exception: " + throwable.getMessage());
 26 |         }
 27 |     }
 28 | 
 29 |     private static void run(String[] args) throws IOException, InterruptedException {
 30 |         if (args.length < 1) {
 31 |             exit(1, "expected pid to profile");
 32 |         }
 33 | 
 34 |         final int pid = findProcessPid(args[0]);
 35 | 
 36 |         var duration = args.length == 2 ?
 37 |                 Duration.ofSeconds(Integer.parseInt(args[1])) :
 38 |                 DEFAULT_DURATION;
 39 | 
 40 |         run("jcmd %d JFR.start name=%s settings=%s".formatted(pid, PROFILING_NAME, CONFIG_FILE_NAME));
 41 |         println("Started profiling process %d for %d seconds".formatted(pid, duration.getSeconds()));
 42 |         final LocalTime deadline = LocalTime.now().plus(duration);
 43 | 
 44 |         while (LocalTime.now().isBefore(deadline)) {
 45 |             TimeUnit.SECONDS.sleep(1);
 46 |             System.out.print(".");
 47 |         }
 48 | 
 49 |         println("Stopping profiling");
 50 |         run("jcmd %d JFR.dump name=%s filename=%s".formatted(pid, PROFILING_NAME, LOG_FILE_NAME));
 51 |         run("jcmd %d JFR.stop name=%s".formatted(pid, PROFILING_NAME));
 52 | 
 53 |         println("Starting JavaFlames");
 54 |         run("java JavaFlames.java %s".formatted(LOG_FILE_NAME));
 55 | 
 56 |         Files.deleteIfExists(LOG_FILE_NAME);
 57 |     }
 58 | 
 59 |     private static int findProcessPid(String javaProcess) throws IOException {
 60 |         if(javaProcess.matches("[0-9]+")){
 61 |             return Integer.parseInt(javaProcess);
 62 |         }
 63 | 
 64 |         final Process jps = new ProcessBuilder("jps").start();
 65 | 
 66 |         try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(jps.getInputStream()))) {
 67 |             String line;
 68 |             while ((line = bufferedReader.readLine()) != null) {
 69 |                 if (line.endsWith(javaProcess)) {
 70 |                     return Integer.parseInt(line.split(" ")[0]);
 71 |                 }
 72 |             }
 73 |         }
 74 | 
 75 |         throw new IllegalStateException("Failed to find pid for process: " + javaProcess);
 76 |     }
 77 | 
 78 |     private static void println(String s) {
 79 |         System.out.println(s);
 80 |     }
 81 | 
 82 |     private static void run(String command) throws IOException, InterruptedException {
 83 |         println("> " + command);
 84 |         final int exitCode = new ProcessBuilder(command.split(" "))
 85 |                 .inheritIO()
 86 |                 .start()
 87 |                 .waitFor();
 88 | 
 89 |         if (exitCode != 0) {
 90 |             throw new IllegalStateException("Command \"%s\" exited with code %d".formatted(command, exitCode));
 91 |         }
 92 |     }
 93 | 
 94 |     private static void exit(int code, String message) {
 95 |         println(message);
 96 |         usage();
 97 |         System.exit(code);
 98 |     }
 99 | 
100 |     private static void usage() {
101 |         println("Usage: java Profile.java <pid> [<duration in seconds>]");
102 |     }
103 | }
104 | 


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/README.md:
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 1 | # Flamegraph from JFR logs
 2 | Simple one file Java script to generate flamegraphs from Java flight recordings without installing Perl and the [Brendan Gregg scripts](https://github.com/brendangregg/FlameGraph).
 3 | 
 4 | It also comes with a separate script to start profiling a java process using FlightRecorder and then call the flamegraph script. 
 5 | ## Usage
 6 | With a fairly recent Java version installed simply run:
 7 | `java JavaFlames.java <path to jfr recording file>`
 8 | 
 9 | This launches an http server serving the `index.html` file and endpoint for the folded format extracted from the JFR logs.
10 | The script then opens up a browser showing the results.
11 | 
12 | Alternatively if you don't have an existing JFR recording you can also start the `Profile.java` script to start profiling a java process generating the JFR file and then triggering flamegraph generation.
13 | 
14 | `java Profile.java <pid> [<duration in seconds>]`
15 | 
16 | The default profiling duration unless specified is 30 seconds.
17 | 
18 | ## Credits
19 | Brendan Gregg for introducing the concept of flamegraphs and https://github.com/spiermar/d3-flame-graph for the javascript/html implementation.
20 | 


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/config.jfc:
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  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <configuration version="2.0" label="High execution samples" description="only execution samples - but with high frequence" provider="Oracle">
  3 | 
  4 |   <event name="jdk.ThreadAllocationStatistics">
  5 |     <setting name="enabled">false</setting>
  6 |     <setting name="period">everyChunk</setting>
  7 |   </event>
  8 | 
  9 |   <event name="jdk.ClassLoadingStatistics">
 10 |     <setting name="enabled">false</setting>
 11 |     <setting name="period">1000 ms</setting>
 12 |   </event>
 13 | 
 14 |   <event name="jdk.ClassLoaderStatistics">
 15 |     <setting name="enabled">false</setting>
 16 |     <setting name="period">everyChunk</setting>
 17 |   </event>
 18 | 
 19 |   <event name="jdk.JavaThreadStatistics">
 20 |     <setting name="enabled">false</setting>
 21 |     <setting name="period">1000 ms</setting>
 22 |   </event>
 23 | 
 24 |   <event name="jdk.ThreadStart">
 25 |     <setting name="enabled">false</setting>
 26 |   </event>
 27 | 
 28 |   <event name="jdk.ThreadEnd">
 29 |     <setting name="enabled">false</setting>
 30 |   </event>
 31 | 
 32 |   <event name="jdk.ThreadSleep">
 33 |     <setting name="enabled">false</setting>
 34 |     <setting name="stackTrace">false</setting>
 35 |     <setting name="threshold" control="synchronization-threshold">1 s</setting>
 36 |   </event>
 37 | 
 38 |   <event name="jdk.ThreadPark">
 39 |     <setting name="enabled">false</setting>
 40 |     <setting name="stackTrace">false</setting>
 41 |     <setting name="threshold" control="synchronization-threshold">1 s</setting>
 42 |   </event>
 43 | 
 44 |   <event name="jdk.JavaMonitorEnter">
 45 |     <setting name="enabled">false</setting>
 46 |     <setting name="stackTrace">false</setting>
 47 |     <setting name="threshold" control="synchronization-threshold">1 s</setting>
 48 |   </event>
 49 | 
 50 |   <event name="jdk.JavaMonitorWait">
 51 |     <setting name="enabled">false</setting>
 52 |     <setting name="stackTrace">false</setting>
 53 |     <setting name="threshold" control="synchronization-threshold">1 s</setting>
 54 |   </event>
 55 | 
 56 |   <event name="jdk.JavaMonitorInflate">
 57 |     <setting name="enabled">false</setting>
 58 |     <setting name="stackTrace">false</setting>
 59 |     <setting name="threshold" control="synchronization-threshold">1 s</setting>
 60 |   </event>
 61 | 
 62 |   <event name="jdk.BiasedLockRevocation">
 63 |     <setting name="enabled">false</setting>
 64 |     <setting name="stackTrace">false</setting>
 65 |     <setting name="threshold">0 ms</setting>
 66 |   </event>
 67 | 
 68 |   <event name="jdk.BiasedLockSelfRevocation">
 69 |     <setting name="enabled">false</setting>
 70 |     <setting name="stackTrace">false</setting>
 71 |     <setting name="threshold">0 ms</setting>
 72 |   </event>
 73 | 
 74 |   <event name="jdk.BiasedLockClassRevocation">
 75 |     <setting name="enabled">false</setting>
 76 |     <setting name="stackTrace">false</setting>
 77 |     <setting name="threshold">0 ms</setting>
 78 |   </event>
 79 | 
 80 |   <event name="jdk.ReservedStackActivation">
 81 |     <setting name="enabled">false</setting>
 82 |     <setting name="stackTrace">false</setting>
 83 |   </event>
 84 | 
 85 |   <event name="jdk.ClassLoad">
 86 |     <setting name="enabled" control="class-loading-enabled">false</setting>
 87 |     <setting name="stackTrace">false</setting>
 88 |     <setting name="threshold">0 ms</setting>
 89 |   </event>
 90 | 
 91 |   <event name="jdk.ClassDefine">
 92 |     <setting name="enabled" control="class-loading-enabled">false</setting>
 93 |     <setting name="stackTrace">false</setting>
 94 |   </event>
 95 | 
 96 |   <event name="jdk.ClassUnload">
 97 |     <setting name="enabled" control="class-loading-enabled">false</setting>
 98 |   </event>
 99 | 
100 |   <event name="jdk.JVMInformation">
101 |     <setting name="enabled">false</setting>
102 |     <setting name="period">beginChunk</setting>
103 |   </event>
104 | 
105 |   <event name="jdk.InitialSystemProperty">
106 |     <setting name="enabled">false</setting>
107 |     <setting name="period">beginChunk</setting>
108 |   </event>
109 | 
110 |   <event name="jdk.ExecutionSample">
111 |     <setting name="enabled" control="method-sampling-enabled">true</setting>
112 |     <setting name="period" control="method-sampling-interval">5 ms</setting>
113 |   </event>
114 | 
115 |   <event name="jdk.NativeMethodSample">
116 |     <setting name="enabled" control="method-sampling-enabled">true</setting>
117 |     <setting name="period" control="method-sampling-interval">5 ms</setting>
118 |   </event>
119 | 
120 |   <event name="jdk.SafepointBegin">
121 |     <setting name="enabled">false</setting>
122 |     <setting name="threshold">0 ms</setting>
123 |   </event>
124 | 
125 |   <event name="jdk.SafepointStateSynchronization">
126 |     <setting name="enabled">false</setting>
127 |     <setting name="threshold">0 ms</setting>
128 |   </event>
129 | 
130 |   <event name="jdk.SafepointWaitBlocked">
131 |     <setting name="enabled">false</setting>
132 |     <setting name="threshold">0 ms</setting>
133 |   </event>
134 | 
135 |   <event name="jdk.SafepointCleanup">
136 |     <setting name="enabled">false</setting>
137 |     <setting name="threshold">0 ms</setting>
138 |   </event>
139 | 
140 |   <event name="jdk.SafepointCleanupTask">
141 |     <setting name="enabled">false</setting>
142 |     <setting name="threshold">0 ms</setting>
143 |   </event>
144 | 
145 |   <event name="jdk.SafepointEnd">
146 |     <setting name="enabled">false</setting>
147 |     <setting name="threshold">0 ms</setting>
148 |   </event>
149 | 
150 |   <event name="jdk.ExecuteVMOperation">
151 |     <setting name="enabled">false</setting>
152 |     <setting name="threshold">0 ms</setting>
153 |   </event>
154 | 
155 |   <event name="jdk.Shutdown">
156 |     <setting name="enabled">false</setting>
157 |     <setting name="stackTrace">true</setting>
158 |   </event>
159 | 
160 |   <event name="jdk.ThreadDump">
161 |     <setting name="enabled" control="thread-dump-enabled">false</setting>
162 |     <setting name="period" control="thread-dump-interval">999 d</setting>
163 |   </event>
164 | 
165 |   <event name="jdk.IntFlag">
166 |     <setting name="enabled">false</setting>
167 |     <setting name="period">beginChunk</setting>
168 |   </event>
169 | 
170 |   <event name="jdk.UnsignedIntFlag">
171 |     <setting name="enabled">false</setting>
172 |     <setting name="period">beginChunk</setting>
173 |   </event>
174 | 
175 |   <event name="jdk.LongFlag">
176 |     <setting name="enabled">false</setting>
177 |     <setting name="period">beginChunk</setting>
178 |   </event>
179 | 
180 |   <event name="jdk.UnsignedLongFlag">
181 |     <setting name="enabled">false</setting>
182 |     <setting name="period">beginChunk</setting>
183 |   </event>
184 | 
185 |   <event name="jdk.DoubleFlag">
186 |     <setting name="enabled">false</setting>
187 |     <setting name="period">beginChunk</setting>
188 |   </event>
189 | 
190 |   <event name="jdk.BooleanFlag">
191 |     <setting name="enabled">false</setting>
192 |     <setting name="period">beginChunk</setting>
193 |   </event>
194 | 
195 |   <event name="jdk.StringFlag">
196 |     <setting name="enabled">false</setting>
197 |     <setting name="period">beginChunk</setting>
198 |   </event>
199 | 
200 |   <event name="jdk.IntFlagChanged">
201 |     <setting name="enabled">false</setting>
202 |   </event>
203 | 
204 |   <event name="jdk.UnsignedIntFlagChanged">
205 |     <setting name="enabled">false</setting>
206 |   </event>
207 | 
208 |   <event name="jdk.LongFlagChanged">
209 |     <setting name="enabled">false</setting>
210 |   </event>
211 | 
212 |   <event name="jdk.UnsignedLongFlagChanged">
213 |     <setting name="enabled">false</setting>
214 |   </event>
215 | 
216 |   <event name="jdk.DoubleFlagChanged">
217 |     <setting name="enabled">false</setting>
218 |   </event>
219 | 
220 |   <event name="jdk.BooleanFlagChanged">
221 |     <setting name="enabled">false</setting>
222 |   </event>
223 | 
224 |   <event name="jdk.StringFlagChanged">
225 |     <setting name="enabled">false</setting>
226 |   </event>
227 | 
228 |   <event name="jdk.ObjectCount">
229 |     <setting name="enabled" control="memory-profiling-enabled-all">false</setting>
230 |     <setting name="period">everyChunk</setting>
231 |   </event>
232 | 
233 |   <event name="jdk.GCConfiguration">
234 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
235 |     <setting name="period">everyChunk</setting>
236 |   </event>
237 | 
238 |   <event name="jdk.GCHeapConfiguration">
239 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
240 |     <setting name="period">beginChunk</setting>
241 |   </event>
242 | 
243 |   <event name="jdk.YoungGenerationConfiguration">
244 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
245 |     <setting name="period">beginChunk</setting>
246 |   </event>
247 | 
248 |   <event name="jdk.GCTLABConfiguration">
249 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
250 |     <setting name="period">beginChunk</setting>
251 |   </event>
252 | 
253 |   <event name="jdk.GCSurvivorConfiguration">
254 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
255 |     <setting name="period">beginChunk</setting>
256 |   </event>
257 | 
258 |   <event name="jdk.ObjectCountAfterGC">
259 |     <setting name="enabled">false</setting>
260 |   </event>
261 | 
262 |   <event name="jdk.GCHeapSummary">
263 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
264 |   </event>
265 | 
266 |   <event name="jdk.PSHeapSummary">
267 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
268 |   </event>
269 | 
270 |   <event name="jdk.G1HeapSummary">
271 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
272 |   </event>
273 | 
274 |   <event name="jdk.MetaspaceSummary">
275 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
276 |   </event>
277 | 
278 |   <event name="jdk.MetaspaceGCThreshold">
279 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
280 |   </event>
281 | 
282 |   <event name="jdk.MetaspaceAllocationFailure">
283 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
284 |     <setting name="stackTrace">true</setting>
285 |   </event>
286 | 
287 |   <event name="jdk.MetaspaceOOM">
288 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
289 |     <setting name="stackTrace">true</setting>
290 |   </event>
291 | 
292 |   <event name="jdk.MetaspaceChunkFreeListSummary">
293 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
294 |   </event>
295 | 
296 |   <event name="jdk.GarbageCollection">
297 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
298 |     <setting name="threshold">0 ms</setting>
299 |   </event>
300 | 
301 |   <event name="jdk.ParallelOldGarbageCollection">
302 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
303 |     <setting name="threshold">0 ms</setting>
304 |   </event>
305 | 
306 |   <event name="jdk.YoungGarbageCollection">
307 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
308 |     <setting name="threshold">0 ms</setting>
309 |   </event>
310 | 
311 |   <event name="jdk.OldGarbageCollection">
312 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
313 |     <setting name="threshold">0 ms</setting>
314 |   </event>
315 | 
316 |   <event name="jdk.G1GarbageCollection">
317 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
318 |     <setting name="threshold">0 ms</setting>
319 |   </event>
320 | 
321 |   <event name="jdk.GCPhasePause">
322 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
323 |     <setting name="threshold">0 ms</setting>
324 |   </event>
325 | 
326 |   <event name="jdk.GCPhasePauseLevel1">
327 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
328 |     <setting name="threshold">0 ms</setting>
329 |   </event>
330 | 
331 |   <event name="jdk.GCPhasePauseLevel2">
332 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
333 |     <setting name="threshold">0 ms</setting>
334 |   </event>
335 | 
336 |   <event name="jdk.GCPhasePauseLevel3">
337 |     <setting name="enabled" control="gc-enabled-all">false</setting>
338 |     <setting name="threshold">0 ms</setting>
339 |   </event>
340 | 
341 |   <event name="jdk.GCPhasePauseLevel4">
342 |     <setting name="enabled" control="gc-enabled-all">false</setting>
343 |     <setting name="threshold">0 ms</setting>
344 |   </event>
345 | 
346 |   <event name="jdk.GCPhaseConcurrent">
347 |     <setting name="enabled" control="gc-enabled-all">false</setting>
348 |     <setting name="threshold">0 ms</setting>
349 |   </event>
350 | 
351 |   <event name="jdk.GCReferenceStatistics">
352 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
353 |   </event>
354 | 
355 |   <event name="jdk.PromotionFailed">
356 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
357 |   </event>
358 | 
359 |   <event name="jdk.EvacuationFailed">
360 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
361 |   </event>
362 | 
363 |   <event name="jdk.EvacuationInformation">
364 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
365 |   </event>
366 | 
367 |   <event name="jdk.G1MMU">
368 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
369 |   </event>
370 | 
371 |   <event name="jdk.G1EvacuationYoungStatistics">
372 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
373 |   </event>
374 | 
375 |   <event name="jdk.G1EvacuationOldStatistics">
376 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
377 |   </event>
378 | 
379 |   <event name="jdk.G1BasicIHOP">
380 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
381 |   </event>
382 | 
383 |   <event name="jdk.G1AdaptiveIHOP">
384 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
385 |   </event>
386 | 
387 |   <event name="jdk.PromoteObjectInNewPLAB">
388 |     <setting name="enabled" control="memory-profiling-enabled-medium">false</setting>
389 |   </event>
390 | 
391 |   <event name="jdk.PromoteObjectOutsidePLAB">
392 |     <setting name="enabled" control="memory-profiling-enabled-medium">false</setting>
393 |   </event>
394 | 
395 |   <event name="jdk.ConcurrentModeFailure">
396 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
397 |   </event>
398 | 
399 |   <event name="jdk.AllocationRequiringGC">
400 |     <setting name="enabled" control="gc-enabled-all">false</setting>
401 |     <setting name="stackTrace">true</setting>
402 |   </event>
403 | 
404 |   <event name="jdk.TenuringDistribution">
405 |     <setting name="enabled" control="gc-enabled-normal">false</setting>
406 |   </event>
407 | 
408 |   <event name="jdk.G1HeapRegionInformation">
409 |     <setting name="enabled" control="gc-enabled-all">false</setting>
410 |     <setting name="period">everyChunk</setting>
411 |   </event>
412 | 
413 |   <event name="jdk.G1HeapRegionTypeChange">
414 |     <setting name="enabled" control="gc-enabled-all">false</setting>
415 |   </event>
416 | 
417 |   <event name="jdk.OldObjectSample">
418 |     <setting name="enabled" control="memory-leak-detection-enabled">false</setting>
419 |     <setting name="stackTrace" control="memory-leak-detection-stack-trace">false</setting>
420 |     <setting name="cutoff" control="memory-leak-detection-cutoff">0 ns</setting>
421 |   </event>
422 | 
423 |   <event name="jdk.CompilerConfiguration">
424 |     <setting name="enabled" control="compiler-enabled">false</setting>
425 |     <setting name="period">beginChunk</setting>
426 |   </event>
427 | 
428 |   <event name="jdk.CompilerStatistics">
429 |     <setting name="enabled" control="compiler-enabled">false</setting>
430 |     <setting name="period">1000 ms</setting>
431 |   </event>
432 | 
433 |   <event name="jdk.Compilation">
434 |     <setting name="enabled" control="compiler-enabled">false</setting>
435 |     <setting name="threshold" control="compiler-compilation-threshold">100 ms</setting>
436 |   </event>
437 | 
438 |   <event name="jdk.CompilerPhase">
439 |     <setting name="enabled" control="compiler-enabled">false</setting>
440 |     <setting name="threshold" control="compiler-phase-threshold">10 s</setting>
441 |   </event>
442 | 
443 |   <event name="jdk.CompilationFailure">
444 |     <setting name="enabled" control="compiler-enabled-failure">false</setting>
445 |   </event>
446 | 
447 |   <event name="jdk.CompilerInlining">
448 |     <setting name="enabled" control="compiler-enabled-failure">false</setting>
449 |   </event>
450 | 
451 |   <event name="jdk.CodeSweeperConfiguration">
452 |     <setting name="enabled" control="compiler-enabled">false</setting>
453 |     <setting name="period">beginChunk</setting>
454 |   </event>
455 | 
456 |   <event name="jdk.CodeSweeperStatistics">
457 |     <setting name="enabled" control="compiler-enabled">false</setting>
458 |     <setting name="period">everyChunk</setting>
459 |   </event>
460 | 
461 |   <event name="jdk.SweepCodeCache">
462 |     <setting name="enabled" control="compiler-enabled">false</setting>
463 |     <setting name="threshold" control="compiler-sweeper-threshold">100 ms</setting>
464 |   </event>
465 | 
466 |   <event name="jdk.CodeCacheConfiguration">
467 |     <setting name="enabled" control="compiler-enabled">false</setting>
468 |     <setting name="period">beginChunk</setting>
469 |   </event>
470 | 
471 |   <event name="jdk.CodeCacheStatistics">
472 |     <setting name="enabled" control="compiler-enabled">false</setting>
473 |     <setting name="period">everyChunk</setting>
474 |   </event>
475 | 
476 |   <event name="jdk.CodeCacheFull">
477 |     <setting name="enabled" control="compiler-enabled">false</setting>
478 |   </event>
479 | 
480 |   <event name="jdk.OSInformation">
481 |     <setting name="enabled">false</setting>
482 |     <setting name="period">beginChunk</setting>
483 |   </event>
484 | 
485 |   <event name="jdk.CPUInformation">
486 |     <setting name="enabled">false</setting>
487 |     <setting name="period">beginChunk</setting>
488 |   </event>
489 | 
490 |   <event name="jdk.ThreadContextSwitchRate">
491 |     <setting name="enabled" control="compiler-enabled">false</setting>
492 |     <setting name="period">10 s</setting>
493 |   </event>
494 | 
495 |   <event name="jdk.CPULoad">
496 |     <setting name="enabled">false</setting>
497 |     <setting name="period">1000 ms</setting>
498 |   </event>
499 | 
500 |   <event name="jdk.ThreadCPULoad">
501 |     <setting name="enabled">false</setting>
502 |     <setting name="period">10 s</setting>
503 |   </event>
504 | 
505 |   <event name="jdk.CPUTimeStampCounter">
506 |     <setting name="enabled">false</setting>
507 |     <setting name="period">beginChunk</setting>
508 |   </event>
509 | 
510 |   <event name="jdk.SystemProcess">
511 |     <setting name="enabled">false</setting>
512 |     <setting name="period">endChunk</setting>
513 |   </event>
514 | 
515 |   <event name="jdk.NetworkUtilization">
516 |     <setting name="enabled">false</setting>
517 |     <setting name="period">5 s</setting>
518 |   </event>
519 | 
520 |   <event name="jdk.InitialEnvironmentVariable">
521 |     <setting name="enabled">false</setting>
522 |     <setting name="period">beginChunk</setting>
523 |   </event>
524 | 
525 |   <event name="jdk.PhysicalMemory">
526 |     <setting name="enabled">false</setting>
527 |     <setting name="period">everyChunk</setting>
528 |   </event>
529 | 
530 |   <event name="jdk.ObjectAllocationInNewTLAB">
531 |     <setting name="enabled" control="memory-profiling-enabled-medium">false</setting>
532 |     <setting name="stackTrace">true</setting>
533 |   </event>
534 | 
535 |   <event name="jdk.ObjectAllocationOutsideTLAB">
536 |     <setting name="enabled" control="memory-profiling-enabled-medium">false</setting>
537 |     <setting name="stackTrace">true</setting>
538 |   </event>
539 | 
540 |   <event name="jdk.NativeLibrary">
541 |     <setting name="enabled">false</setting>
542 |     <setting name="period">everyChunk</setting>
543 |   </event>
544 | 
545 |   <event name="jdk.FileForce">
546 |     <setting name="enabled">false</setting>
547 |     <setting name="stackTrace">true</setting>
548 |     <setting name="threshold" control="file-io-threshold">1 s</setting>
549 |   </event>
550 | 
551 |   <event name="jdk.FileRead">
552 |     <setting name="enabled">false</setting>
553 |     <setting name="stackTrace">true</setting>
554 |     <setting name="threshold" control="file-io-threshold">1 s</setting>
555 |   </event>
556 | 
557 |   <event name="jdk.FileWrite">
558 |     <setting name="enabled">false</setting>
559 |     <setting name="stackTrace">true</setting>
560 |     <setting name="threshold" control="file-io-threshold">1 s</setting>
561 |   </event>
562 | 
563 |   <event name="jdk.SocketRead">
564 |     <setting name="enabled">false</setting>
565 |     <setting name="stackTrace">true</setting>
566 |     <setting name="threshold" control="socket-io-threshold">1 s</setting>
567 |   </event>
568 | 
569 |   <event name="jdk.SocketWrite">
570 |     <setting name="enabled">false</setting>
571 |     <setting name="stackTrace">true</setting>
572 |     <setting name="threshold" control="socket-io-threshold">1 s</setting>
573 |   </event>
574 | 
575 |   <event name="jdk.JavaExceptionThrow">
576 |     <setting name="enabled" control="enable-exceptions">false</setting>
577 |     <setting name="stackTrace">true</setting>
578 |   </event>
579 | 
580 |   <event name="jdk.JavaErrorThrow">
581 |     <setting name="enabled" control="enable-errors">false</setting>
582 |     <setting name="stackTrace">true</setting>
583 |   </event>
584 | 
585 |   <event name="jdk.ExceptionStatistics">
586 |     <setting name="enabled">false</setting>
587 |     <setting name="period">1000 ms</setting>
588 |   </event>
589 | 
590 |   <event name="jdk.ActiveRecording">
591 |     <setting name="enabled">false</setting>
592 |   </event>
593 | 
594 |   <event name="jdk.ActiveSetting">
595 |     <setting name="enabled">false</setting>
596 |   </event>
597 | 
598 |   <event name="jdk.DataLoss">
599 |     <setting name="enabled">false</setting>
600 |   </event>
601 | 
602 |   <event name="jdk.DumpReason">
603 |     <setting name="enabled">false</setting>
604 |   </event>
605 | 
606 |   <event name="jdk.ZPageAllocation">
607 |     <setting name="enabled">false</setting>
608 |     <setting name="threshold">10 ms</setting>
609 |   </event>
610 | 
611 |   <event name="jdk.ZThreadPhase">
612 |     <setting name="enabled">false</setting>
613 |     <setting name="threshold">0 ms</setting>
614 |   </event>
615 | 
616 |   <event name="jdk.ZStatisticsCounter">
617 |     <setting name="threshold">10 ms</setting>
618 |     <setting name="enabled">false</setting>
619 |   </event>
620 | 
621 |   <event name="jdk.ZStatisticsSampler">
622 |     <setting name="enabled">false</setting>
623 |     <setting name="threshold">10 ms</setting>
624 |   </event>
625 | 
626 |   <control></control>
627 | 
628 | </configuration>
629 | 


--------------------------------------------------------------------------------
/index.html:
--------------------------------------------------------------------------------
  1 | <!DOCTYPE html>
  2 | <html lang="en">
  3 | <head>
  4 |     <meta charset="utf-8">
  5 |     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  6 |     <meta name="viewport" content="width=device-width, initial-scale=1">
  7 | 
  8 |     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  9 |     <link rel="stylesheet" type="text/css"
 10 |           href="https://cdn.jsdelivr.net/gh/spiermar/d3-flame-graph@2.0.3/dist/d3-flamegraph.css">
 11 | 
 12 |     <style>
 13 |         /* Space out content a bit */
 14 |         body {
 15 |             padding-top: 10px;
 16 |             padding-bottom: 10px;
 17 |         }
 18 | 
 19 |         /* Custom page header */
 20 |         .header {
 21 |             padding-bottom: 20px;
 22 |             padding-right: 15px;
 23 |             padding-left: 15px;
 24 |             border-bottom: 1px solid #e5e5e5;
 25 |         }
 26 | 
 27 |         /* Make the masthead heading the same height as the navigation */
 28 |         .header h3 {
 29 |             margin-top: 0;
 30 |             margin-bottom: 0;
 31 |             line-height: 40px;
 32 |         }
 33 | 
 34 |         /* Customize container */
 35 |         .container {
 36 |             max-width: 990px;
 37 |         }
 38 |     </style>
 39 | 
 40 |     <title>Flames!</title>
 41 | 
 42 |     <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
 43 |     <!--[if lt IE 9]>
 44 |     <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
 45 |     <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
 46 |     <![endif]-->
 47 | </head>
 48 | <body>
 49 | <div class="container">
 50 |     <div class="header clearfix">
 51 |         <nav>
 52 |             <div class="pull-right">
 53 |                 <form class="form-inline" id="form">
 54 |                     <a class="btn" href="javascript: resetZoom();">Reset zoom</a>
 55 |                     <a class="btn" href="javascript: clear();">Clear</a>
 56 |                     <div class="form-group">
 57 |                         <input type="text" class="form-control" id="term">
 58 |                     </div>
 59 |                     <a class="btn btn-primary" href="javascript: search();">Search</a>
 60 |                 </form>
 61 |             </div>
 62 |         </nav>
 63 |     </div>
 64 |     <div id="baseLineChart">
 65 |     </div>
 66 |     <hr>
 67 |     <div id="baseLineDetails">task:
 68 |     </div>
 69 |     <div id="comparison" style="display: none">
 70 |         <hr>
 71 |         <div id="comparisonChart">
 72 |         </div>
 73 |         <hr>
 74 |         <div id="comparisonDetails">task:
 75 |         </div>
 76 |     </div>
 77 | </div>
 78 | 
 79 | <!-- D3.js -->
 80 | <script src="https://d3js.org/d3.v4.min.js" charset="utf-8"></script>
 81 | 
 82 | <!-- d3-tip -->
 83 | <script type="text/javascript" src=https://cdnjs.cloudflare.com/ajax/libs/d3-tip/0.9.1/d3-tip.min.js></script>
 84 | 
 85 | <!-- d3-flamegraph -->
 86 | <script type="text/javascript"
 87 |         src="https://cdn.jsdelivr.net/gh/spiermar/d3-flame-graph@2.0.3/dist/d3-flamegraph.min.js"></script>
 88 | 
 89 | <script type="text/javascript">
 90 |     const flameCharts = [];
 91 |     const urlParams = new URLSearchParams(window.location.search);
 92 |     const baseLineTitle = urlParams.get("baseLineTitle");
 93 |     const baseLineInput = urlParams.get("baseLineInput");
 94 |     const comparisonTitle = urlParams.get("comparisonTitle");
 95 |     const comparisonInput = urlParams.get("comparisonInput");
 96 | 
 97 |     function generateFlameChart(title, detailsElementId) {
 98 |         const graph = d3.flamegraph()
 99 |             .width(1200)
100 |             .cellHeight(18)
101 |             .transitionDuration(5)
102 |             .minFrameSize(5)
103 |             .transitionEase(d3.easeCubic)
104 |             .sort(true)
105 |             .title(title)
106 |             .onClick(onClick)
107 |             .differential(false)
108 |             .selfValue(false)
109 |             .label(function (d) {
110 |                 return "frame: " + (d.data.n || d.data.name) + ' (' + (100 * (d.x1 - d.x0)).toFixed(2) + '%, ' + numberWithCommas((d.v || d.value)) + ' occurrences)';
111 |             });
112 | 
113 |         const detailsElement = document.getElementById(detailsElementId);
114 | 
115 |         graph.setDetailsHandler(function (d) {
116 |             if (detailsElement) {
117 |                 if (d) {
118 |                     detailsElement.innerHTML = d;
119 |                 } else {
120 |                     detailsElement.innerHTML = 'task:';
121 |                 }
122 |             }
123 |         });
124 | 
125 |         return graph;
126 |     }
127 | 
128 |     function numberWithCommas(x) {
129 |         const parts = x.toString().split(".");
130 |         parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ",");
131 |         return parts.join(".");
132 |     }
133 | 
134 |     function generateBaseLineFlamechart(input, title, chartElement, detailsElementId) {
135 |         d3.text(input, function (error, data) {
136 |             if (error) return console.warn(error);
137 |             let flameChart = generateFlameChart(title, detailsElementId);
138 |             let jsonData = folded(data);
139 |             d3.select(chartElement)
140 |                 .datum(jsonData)
141 |                 .call(flameChart);
142 |             flameCharts[0] = flameChart;
143 |         });
144 |     }
145 | 
146 |     function generateComparisonLineFlamechart(baseLineInput, input, title, chartElement, detailsElementId) {
147 |         d3.text(input, function (error, data) {
148 |             if (error) return console.warn(error);
149 | 
150 |             d3.text(baseLineInput, function (error, baseLineData) {
151 |                 if (error) return console.warn(error);
152 | 
153 |                 let flameChart = generateFlameChart(title, detailsElementId);
154 |                 flameChart.differential(true);
155 |                 let baselineJson = folded(baseLineData);
156 |                 let dataJson = folded(data);
157 |                 addDeltas(dataJson, baselineJson);
158 | 
159 |                 d3.select(chartElement)
160 |                     .datum(dataJson)
161 |                     .call(flameChart);
162 | 
163 |                 flameCharts[1] = flameChart;
164 |             });
165 |         });
166 |     }
167 | 
168 |     function addDeltas(node, baseLineNode) {
169 |         node.delta = baseLineNode ?
170 |             node.value - baseLineNode.value :
171 |             node.value;
172 | 
173 |         if (!node.children) {
174 |             return node;
175 |         }
176 | 
177 |         node.children.forEach(function (child) {
178 |             var baslineChildNode = baseLineNode.children.find(function (baseLineChild) {
179 |                 return baseLineChild.name === child.name;
180 |             });
181 |             addDeltas(child, baslineChildNode)
182 |         });
183 |         return node;
184 |     }
185 | 
186 |     generateBaseLineFlamechart(baseLineInput, baseLineTitle, "#baseLineChart", "baseLineDetails");
187 | 
188 |     if (comparisonTitle && comparisonInput) {
189 |         generateComparisonLineFlamechart(baseLineInput, comparisonInput, comparisonTitle, "#comparisonChart", "comparisonDetails");
190 |         document.getElementById("comparison").style.display = "block";
191 |     }
192 | 
193 |     document.getElementById("form").addEventListener("submit", function (event) {
194 |         event.preventDefault();
195 |         search();
196 |     });
197 | 
198 |     function search() {
199 |         const term = document.getElementById("term").value;
200 |         flameCharts.forEach(function (graph) {
201 |             graph.search(term);
202 |         });
203 |     }
204 | 
205 |     function clear() {
206 |         document.getElementById('term').value = '';
207 |         flameCharts.forEach(function (graph) {
208 |             graph.clear();
209 |         });
210 |     }
211 | 
212 |     function resetZoom() {
213 |         flameCharts.forEach(function (graph) {
214 |             graph.resetZoom();
215 |         });
216 |     }
217 | 
218 |     function onClick(d) {
219 |         console.info("Clicked on " + d.data.name);
220 |     }
221 | 
222 |     /***************************
223 |      * Functions to convert folded perf logs to D3 json format
224 |      * "borrowed" from https://github.com/spiermar/node-stack-convert
225 |      * *************************/
226 |     function Node(name) {
227 |         this.name = name;
228 |         this.value = 0;
229 |         this.children = {};
230 |     }
231 | 
232 |     Node.prototype.add = function (frames, value) {
233 |         this.value += value;
234 |         if (frames && frames.length > 0) {
235 |             const head = frames[0];
236 |             let child = this.children[head];
237 |             if (!child) {
238 |                 child = new Node(head);
239 |                 this.children[head] = child;
240 |             }
241 |             frames.splice(0, 1);
242 |             child.add(frames, value);
243 |         }
244 |     }
245 | 
246 |     Node.prototype.serialize = function () {
247 |         const res = {
248 |             'name': this.name,
249 |             'value': this.value
250 |         }
251 | 
252 |         const children = []
253 | 
254 |         for (const key in this.children) {
255 |             children.push(this.children[key].serialize());
256 |         }
257 | 
258 |         if (children.length > 0) res['children'] = children;
259 | 
260 |         return res;
261 |     }
262 | 
263 |     function folded(data) {
264 |         const root = new Node('ALL');
265 |         data.split("\n").map(function (val) {
266 |             const regex = /(.*) (.*)/g;
267 |             const matches = regex.exec(val);
268 |             if (matches) root.add(matches[1].split(";"), parseInt(matches[2]));
269 |         });
270 |         return root.serialize();
271 |     }
272 | </script>
273 | </body>
274 | </html>


--------------------------------------------------------------------------------