SteamWar/LixfelsProfiler
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Dieser Commit ist enthalten in:
Lixfel 2022-11-29 11:49:57 +01:00
Ursprung 3651a3bab2
Commit 25afe9f605
5 geänderte Dateien mit 90 neuen und 78 gelöschten Zeilen
Statistiken anzeigen Patch-Datei herunterladen Vergleichs-Datei herunterladen Alle Dateien ausklappen Alle Dateien einklappen

2
pom.xml
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@ -27,7 +27,7 @@
<goal>shade</goal>
</goals>
<configuration>
<minimizeJar>false</minimizeJar>
<minimizeJar>true</minimizeJar>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>

3
src/main/java/de/steamwar/Agent.java
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@ -20,6 +20,7 @@ public class Agent {
public static void agentmain(String args, Instrumentation inst) {
instrumentation = inst;
//AsyncProfiler.getInstance("/home/lixfel/libasyncProfiler.so");
switch (args) {
case "start":
start();
@ -37,7 +38,7 @@ public class Agent {
if(shutdownHook != null)
return;
callProfiler("start,event=wall,threads,interval=1000000,alluser"); // 1mio ns = 1ms
callProfiler("start,event=wall,threads,interval=1000000,cstack=fp"); // 1mio ns = 1ms
shutdownHook = new Thread(Agent::stop, "SamplerShutdownHook");
Runtime.getRuntime().addShutdownHook(shutdownHook);
}

101
src/main/java/de/steamwar/Method.java
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@ -3,9 +3,7 @@ package de.steamwar;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.DecimalFormat;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.*;
public class Method {
private static final DecimalFormat df = new DecimalFormat("0.00");
@ -16,43 +14,21 @@ public class Method {
private final int id;
private final String name;
private final int[] samples = new int[3];
private final int[] samples = new int[State.values().length];
private final HashMap<Method, Integer> calls = new HashMap<>();
public Method(Profile profile, Map<String, ObfHelper.ClassMapping> mappings, String name) {
this.profile = profile;
this.id = idCounter++;
int methodDivisor = name.lastIndexOf(".");
if(methodDivisor != -1) {
String className = name.substring(0, methodDivisor);
String methodDefinition = name.substring(methodDivisor+1).replace('|', ';');
String methodName = methodDefinition.split("\\(", 2)[0];
String methodArgs = methodDefinition.split("\\(", 2)[1].split("\\)", 2)[0];
String methodReturn = methodDefinition.split("\\)", 2)[1];
ObfHelper.ClassMapping mapping = mappings.get(className);
if(mapping != null) {
className = mapping.mojangName;
methodName = mapping.methodsByObf.getOrDefault(methodDefinition, methodName);
try {
name = javaPrettify(mappings, name);
} catch (IllegalArgumentException e) {
if(name.startsWith("/")) { // native lib
name = name.substring(name.lastIndexOf('/') + 1);
}
if(className.contains("$$Lambda$")) {
className = className.split("\\$\\$Lambda\\$", 2)[0] + ".λ";
}
if(methodName.startsWith("lambda$")) {
methodName = methodName.split("\\$", 2)[1].replace('$', 'λ');
}
StringBuilder builder = new StringBuilder();
formatJvmTypes(mappings, builder, methodReturn);
builder.append(" ").append(className.replace('$', '.')).append(".").append(methodName).append("(");
formatJvmTypes(mappings, builder, methodArgs);
builder.append(")");
name = builder.toString();
}
this.name = name;
}
@ -60,7 +36,7 @@ public class Method {
return Arrays.stream(samples).sum();
}
private boolean filtered() {
public boolean filtered() {
return Arrays.stream(samples).sum() < Profile.FILTER;
}
@ -84,32 +60,67 @@ public class Method {
return df.format(value * Profile.SAMPLING_SPEED / 1e9);
}
public void toDot(OutputStreamWriter writer) throws IOException {
if (filtered())
return;
public void prune() {
calls.keySet().removeIf(Method::filtered);
calls.values().removeIf(s -> s < Profile.FILTER);
}
public void toDot(OutputStreamWriter writer) throws IOException {
int waiting = samples[State.WAITING.ordinal()];
int runnable = samples[State.RUNNING.ordinal()];
int blocked = samples[State.BLOCKED.ordinal()];
int total = waiting + runnable + blocked;
int io = samples[State.IO.ordinal()];
int time = samples[State.TIME.ordinal()];
int total = waiting + runnable + io + time;
int r = (255 * blocked + 192 * waiting) / total;
int g = (255 * runnable + 192 * waiting) / total;
int b = (192 * waiting) / total;
int r = ( 255 * waiting + 192 * time) / total;
int g = (255 * runnable + 64 * waiting + 192 * io + 192 * time) / total;
int b = ( 64 * waiting + 255 * io + 192 * time) / total;
int a = (int) (255 * Math.sqrt(total / (double) profile.getSampleRuns()));
if (a > 255)
a = 255;
writer.append(String.valueOf(id)).append(" [fillcolor=\"#").append(String.format("%02X", r)).append(String.format("%02X", g)).append(String.format("%02X", b)).append(String.format("%02X", a)).append("\",label=\"").append(name).append("\\n").append(time(ownSampleRuns())).append("s ").append(totalPercentage(ownSampleRuns())).append("%\\nR").append(percentage(runnable)).append("% B").append(percentage(blocked)).append("% W").append(percentage(waiting)).append("%\"];\n");
writer.append(String.valueOf(id)).append(" [fillcolor=\"#").append(String.format("%02X", r)).append(String.format("%02X", g)).append(String.format("%02X", b)).append(String.format("%02X", a)).append("\",label=\"").append(name).append("\\n").append(time(ownSampleRuns())).append("s ").append(totalPercentage(ownSampleRuns())).append("% R").append(percentage(runnable)).append("% T").append(percentage(time)).append("% I").append(percentage(io)).append("% W").append(percentage(waiting)).append("%\"];\n");
for (Map.Entry<Method, Integer> entry : calls.entrySet()) {
if (entry.getKey().filtered() || entry.getValue() < Profile.FILTER)
continue;
writer.append(String.valueOf(id)).append(" -> ").append(String.valueOf(entry.getKey().id)).append(" [label=\"").append(time(entry.getValue())).append("s\\n").append(percentage(entry.getValue())).append("%\",weight=").append(String.valueOf(entry.getValue())).append("];\n");
}
}
private String javaPrettify(Map<String, ObfHelper.ClassMapping> mappings, String name) {
try {
int methodDivisor = name.lastIndexOf(".");
String className = name.substring(0, methodDivisor);
String methodDefinition = name.substring(methodDivisor + 1).replace('|', ';');
String methodName = methodDefinition.split("\\(", 2)[0];
String methodArgs = methodDefinition.split("\\(", 2)[1].split("\\)", 2)[0];
String methodReturn = methodDefinition.split("\\)", 2)[1];
ObfHelper.ClassMapping mapping = mappings.get(className);
if (mapping != null) {
className = mapping.mojangName;
methodName = mapping.methodsByObf.getOrDefault(methodDefinition, methodName);
}
if (className.contains("$$Lambda$")) {
className = className.split("\\$\\$Lambda\\$", 2)[0] + ".λ";
}
if (methodName.startsWith("lambda$")) {
methodName = methodName.split("\\$", 2)[1].replace('$', 'λ');
}
StringBuilder builder = new StringBuilder();
formatJvmTypes(mappings, builder, methodReturn);
builder.append("\\n").append(className.replace('$', '.')).append(".").append(methodName).append("\\n(");
formatJvmTypes(mappings, builder, methodArgs);
builder.append(")");
return builder.toString();
} catch (Throwable t) {
throw new IllegalArgumentException(t);
}
}
private void formatJvmTypes(Map<String, ObfHelper.ClassMapping> mappings, StringBuilder builder, String jvmType) {
int i = 0;
while(i < jvmType.length()) {

59
src/main/java/de/steamwar/Profile.java
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@ -4,35 +4,33 @@ import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.*;
public class Profile {
public static final long SAMPLING_SPEED = 1000000;
public static final int FILTER = 100;
private static final HashSet<String> waitingMethods = new HashSet<>();
private static final HashMap<String, State> stateMethods = new HashMap<>();
static {
waitingMethods.add("jdk.internal.misc.Unsafe.park(ZJ)V");
waitingMethods.add("java.lang.Thread.sleep(J)V");
waitingMethods.add("java.lang.Object.wait(J)V");
waitingMethods.add("java.lang.Object.wait(JI)V");
waitingMethods.add("java.lang.ref.Reference.waitForReferencePendingList()V");
waitingMethods.add("accept");
waitingMethods.add("poll");
waitingMethods.add("com.ibm.lang.management.internal.MemoryNotificationThread.processNotificationLoop()V");
waitingMethods.add("openj9.internal.tools.attach.target.IPC.waitSemaphore()I");
waitingMethods.add("net.minecrell.terminalconsole.SimpleTerminalConsole.readCommands(Ljava/io/InputStream|)V");
waitingMethods.add("sun.nio.ch.SocketDispatcher.read0(Ljava/io/FileDescriptor|JI)I");
waitingMethods.add("io.netty.channel.epoll.Native.epollWait(IJII)I");
stateMethods.put("jdk.internal.misc.Unsafe.park(ZJ)V", State.TIME);
stateMethods.put("java.lang.Thread.sleep(J)V", State.TIME);
stateMethods.put("java.lang.Object.wait(J)V", State.WAITING);
stateMethods.put("java.lang.Object.wait(JI)V", State.WAITING);
stateMethods.put("java.lang.ref.Reference.waitForReferencePendingList()V", State.WAITING);
stateMethods.put("com.ibm.lang.management.internal.MemoryNotificationThread.processNotificationLoop()V", State.WAITING);
stateMethods.put("sun.nio.ch.SocketDispatcher.read0(Ljava/io/FileDescriptor|JI)I", State.IO);
stateMethods.put("io.netty.channel.epoll.Native.epollWait(IJII)I", State.IO);
stateMethods.put("openj9.internal.tools.attach.target.IPC.waitSemaphore()I", State.IO);
stateMethods.put("java.io.FileInputStream.readBytes([BII)I", State.IO);
}
//private static final HashSet<String> blockingMethods = new HashSet<>(); For later if possible
private static final HashSet<String> omittedMethods = new HashSet<>();
static {
omittedMethods.add("/usr/lib/libc.so.6");
omittedMethods.add("java.lang.Thread.run()V");
omittedMethods.add("java.util.concurrent.FutureTask.run()V");
omittedMethods.add("java.util.concurrent.ForkJoinWorkerThread.run()V");
omittedMethods.add("java.util.concurrent.ForkJoinWorkerThread.runWorker(Ljava/util/concurrent/ForkJoinPool$WorkQueue|)V");
omittedMethods.add("java.util.concurrent.ThreadPoolExecutor$Worker.run()V");
@ -40,7 +38,7 @@ public class Profile {
}
private final HashMap<String, Method> methods = new HashMap<>();
private final HashMap<String, Integer> threadSamples = new HashMap<>();
private final HashMap<Method, Integer> threads = new HashMap<>();
public Profile(Map<String, ObfHelper.ClassMapping> mappings, String profile) {
HashSet<String> previousIds = new HashSet<>();
@ -57,10 +55,7 @@ public class Profile {
State state = State.RUNNING;
for(String name : names) {
if (waitingMethods.contains(name)) {
state = State.WAITING;
break;
}
state = stateMethods.getOrDefault(name, state);
}
Method calling = null;
@ -75,28 +70,32 @@ public class Profile {
calling = method;
}
threadSamples.compute(names[0], (threadName, previous) -> previous == null ? samples : previous + samples);
threads.compute(calling, (thread, previous) -> previous == null ? samples : previous + samples);
}
}
public int getSampleRuns() {
return threadSamples.values().stream().max(Integer::compareTo).orElse(0);
return threads.values().stream().max(Integer::compareTo).orElse(0);
}
public void prune() {
methods.values().removeIf(Method::filtered);
methods.values().forEach(Method::prune);
}
public void save() {
prune();
File output = new File(System.getProperty("user.home"), "samples.dot");
try(OutputStreamWriter writer = new FileWriter(output)) {
writer.append("digraph {\nnode [shape=plaintext,style=\"filled\", margin=0.1];\n");
//\ngraph [splines=true overlap=false];
writer.append("digraph {\ngraph [splines=true,overlap=false,searchsize=2];\nnode [shape=plaintext,style=\"filled\",margin=0.1];\n");
for(Method method : methods.values()) {
method.toDot(writer);
}
writer.append("}");
//writer.flush();
} catch (IOException e) {
e.printStackTrace();
}

3
src/main/java/de/steamwar/State.java
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@ -3,5 +3,6 @@ package de.steamwar;
public enum State {
RUNNING,
WAITING,
BLOCKED
TIME,
IO
}