Improve output

src/main/java/de/steamwar/Sampler.java

@@ -10,7 +10,7 @@ import java.util.concurrent.locks.LockSupport;
 public class Sampler {
 
     public static final long SAMPLING_SPEED = 1000000;
-    public static final double FILTER = 0.01;
+    public static final int FILTER = 10;
 
     private static final Set<String> waitingMethods = new HashSet<>();
     static {
@@ -38,14 +38,9 @@ public class Sampler {
         omittedMethods.add("java.lang.Iterable.forEach");
         omittedMethods.add("java.util.ArrayList.forEach");
         omittedMethods.add("java.util.Map.forEach");
-
-        //TODO: Rework to concrete functions
-        omittedMethods.add("jdk.internal");
-        omittedMethods.add("java.util.stream");
-        omittedMethods.add("java.util.Spliterators");
-        omittedMethods.add("java.util.ArrayList$ArrayListSpliterator");
-        omittedMethods.add("java.util.AbstractList$RandomAccessSpliterator");
-        omittedMethods.add("java.util.concurrent");
+        omittedMethods.add("java.util.concurrent.ThreadPoolExecutor$Worker.run");
+        omittedMethods.add("java.util.concurrent.ThreadPoolExecutor.runWorker");
+        omittedMethods.add("java.util.concurrent.CompletableFuture$Completion.run");
     }
 
     private final Map<String, Trace> traces = new HashMap<>();
@@ -93,8 +88,6 @@ public class Sampler {
     }
 
     private void run() {
-        Thread autoStopper = new Thread(this::stop, "SamplerStop");
-        Runtime.getRuntime().addShutdownHook(autoStopper);
         long lastTime = System.nanoTime();
         while(!shutdown) {
             sample();
@@ -103,12 +96,6 @@ public class Sampler {
             LockSupport.parkNanos(SAMPLING_SPEED - currentTime + lastTime);
             lastTime = currentTime;
         }
-
-        try {
-            Runtime.getRuntime().removeShutdownHook(autoStopper);
-        } catch (IllegalStateException e) {
-            // ignored
-        }
     }
 
     private void sample() {

src/main/java/de/steamwar/Trace.java

@@ -30,7 +30,7 @@ public class Trace {
     }
 
     private boolean filtered() {
-        return Arrays.stream(samples).sum() / (double) sampler.getSampleRuns() < Sampler.FILTER;
+        return Arrays.stream(samples).sum() < Sampler.FILTER;
     }
 
     public void add(Thread.State state, Trace predecessor) {
@@ -62,7 +62,7 @@ public class Trace {
         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(percentage(ownSampleRuns())).append("% ").append(df.format(ownSampleRuns() * Sampler.SAMPLING_SPEED / 1e9)).append("s\\nR").append(percentage(runnable)).append("% B").append(percentage(blocked)).append("% W").append(percentage(waiting)).append("%\"];\n");
 
         for (Map.Entry<Trace, Integer> entry : predecessors.entrySet()) {
-            if (entry.getKey().filtered() || entry.getValue() / (double)sampler.getSampleRuns() < Sampler.FILTER)
+            if (entry.getKey().filtered() || entry.getValue() < Sampler.FILTER)
                 continue;
 
             writer.append(String.valueOf(entry.getKey().id)).append(" -> ").append(String.valueOf(id)).append(" [label=\"").append(percentage(entry.getValue())).append("%\",weight=").append(String.valueOf(entry.getValue())).append("];\n");