http://openjdk.java.net/projects/code-tools/jmh/jmh-core/: The jmh is a Java harness for building, running, and analysing nano/micro/macro benchmarks written in Java and other languages targeting the JVM. (Oracle)
  • Aleksey Shipilev (Oracle/Sun, Red Hat)
  • Sergey Kuksenko (Oracle/Sun)
  • Anders Astrand (Oracle/BEA)
  • Staffan Friberg (Oracle/BEA)
  • Henrik Loef (Oracle/BEA) 
public class org.openjdk.jmh.profile.CompilerProfiler implements org.openjdk.jmh.profile.InternalProfiler
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.openjdk.jmh.profile.CompilerProfiler
  super_class: java.lang.Object
{
  private long startCompTime;
    descriptor: J
    flags: (0x0002) ACC_PRIVATE

  public java.lang.String getDescription();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.openjdk.jmh.profile.CompilerProfiler this
         0: .line 43
            ldc "JIT compiler profiling via standard MBeans"
            areturn
        end local 0 // org.openjdk.jmh.profile.CompilerProfiler this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/openjdk/jmh/profile/CompilerProfiler;

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.openjdk.jmh.profile.CompilerProfiler this
         0: .line 46
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 47
            invokestatic java.lang.management.ManagementFactory.getCompilationMXBean:()Ljava/lang/management/CompilationMXBean;
            astore 1 /* comp */
        start local 1 // java.lang.management.CompilationMXBean comp
         2: .line 48
            aload 1 /* comp */
            invokeinterface java.lang.management.CompilationMXBean.isCompilationTimeMonitoringSupported:()Z
            ifne 4
         3: .line 49
            new org.openjdk.jmh.profile.ProfilerException
            dup
            ldc "The MXBean is available, but compilation time monitoring is disabled."
            invokespecial org.openjdk.jmh.profile.ProfilerException.<init>:(Ljava/lang/String;)V
            athrow
         4: .line 51
      StackMap locals: org.openjdk.jmh.profile.CompilerProfiler java.lang.management.CompilationMXBean
      StackMap stack:
            return
        end local 1 // java.lang.management.CompilationMXBean comp
        end local 0 // org.openjdk.jmh.profile.CompilerProfiler this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/openjdk/jmh/profile/CompilerProfiler;
            2    5     1  comp  Ljava/lang/management/CompilationMXBean;
    Exceptions:
      throws org.openjdk.jmh.profile.ProfilerException

  public void beforeIteration(org.openjdk.jmh.infra.BenchmarkParams, org.openjdk.jmh.infra.IterationParams);
    descriptor: (Lorg/openjdk/jmh/infra/BenchmarkParams;Lorg/openjdk/jmh/infra/IterationParams;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // org.openjdk.jmh.profile.CompilerProfiler this
        start local 1 // org.openjdk.jmh.infra.BenchmarkParams benchmarkParams
        start local 2 // org.openjdk.jmh.infra.IterationParams iterationParams
         0: .line 55
            invokestatic java.lang.management.ManagementFactory.getCompilationMXBean:()Ljava/lang/management/CompilationMXBean;
            astore 3 /* comp */
        start local 3 // java.lang.management.CompilationMXBean comp
         1: .line 57
            aload 0 /* this */
            aload 3 /* comp */
            invokeinterface java.lang.management.CompilationMXBean.getTotalCompilationTime:()J
            putfield org.openjdk.jmh.profile.CompilerProfiler.startCompTime:J
         2: .line 58
            goto 4
      StackMap locals: org.openjdk.jmh.profile.CompilerProfiler org.openjdk.jmh.infra.BenchmarkParams org.openjdk.jmh.infra.IterationParams java.lang.management.CompilationMXBean
      StackMap stack: java.lang.UnsupportedOperationException
         3: pop
         4: .line 61
      StackMap locals:
      StackMap stack:
            return
        end local 3 // java.lang.management.CompilationMXBean comp
        end local 2 // org.openjdk.jmh.infra.IterationParams iterationParams
        end local 1 // org.openjdk.jmh.infra.BenchmarkParams benchmarkParams
        end local 0 // org.openjdk.jmh.profile.CompilerProfiler this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    5     0             this  Lorg/openjdk/jmh/profile/CompilerProfiler;
            0    5     1  benchmarkParams  Lorg/openjdk/jmh/infra/BenchmarkParams;
            0    5     2  iterationParams  Lorg/openjdk/jmh/infra/IterationParams;
            1    5     3             comp  Ljava/lang/management/CompilationMXBean;
      Exception table:
        from    to  target  type
           1     2       3  Class java.lang.UnsupportedOperationException
    MethodParameters:
                 Name  Flags
      benchmarkParams  
      iterationParams  

  public java.util.Collection<? extends org.openjdk.jmh.results.Result> afterIteration(org.openjdk.jmh.infra.BenchmarkParams, org.openjdk.jmh.infra.IterationParams, org.openjdk.jmh.results.IterationResult);
    descriptor: (Lorg/openjdk/jmh/infra/BenchmarkParams;Lorg/openjdk/jmh/infra/IterationParams;Lorg/openjdk/jmh/results/IterationResult;)Ljava/util/Collection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=10, locals=7, args_size=4
        start local 0 // org.openjdk.jmh.profile.CompilerProfiler this
        start local 1 // org.openjdk.jmh.infra.BenchmarkParams benchmarkParams
        start local 2 // org.openjdk.jmh.infra.IterationParams iterationParams
        start local 3 // org.openjdk.jmh.results.IterationResult result
         0: .line 65
            invokestatic java.lang.management.ManagementFactory.getCompilationMXBean:()Ljava/lang/management/CompilationMXBean;
            astore 4 /* comp */
        start local 4 // java.lang.management.CompilationMXBean comp
         1: .line 67
            aload 4 /* comp */
            invokeinterface java.lang.management.CompilationMXBean.getTotalCompilationTime:()J
            lstore 5 /* curTime */
        start local 5 // long curTime
         2: .line 68
            iconst_2
            anewarray org.openjdk.jmh.results.ScalarResult
            dup
            iconst_0
         3: .line 69
            new org.openjdk.jmh.results.ScalarResult
            dup
            ldc "\u00B7compiler.time.profiled"
            lload 5 /* curTime */
            aload 0 /* this */
            getfield org.openjdk.jmh.profile.CompilerProfiler.startCompTime:J
            lsub
            l2d
            ldc "ms"
            getstatic org.openjdk.jmh.results.AggregationPolicy.SUM:Lorg/openjdk/jmh/results/AggregationPolicy;
            invokespecial org.openjdk.jmh.results.ScalarResult.<init>:(Ljava/lang/String;DLjava/lang/String;Lorg/openjdk/jmh/results/AggregationPolicy;)V
            aastore
            dup
            iconst_1
         4: .line 70
            new org.openjdk.jmh.results.ScalarResult
            dup
            ldc "\u00B7compiler.time.total"
            lload 5 /* curTime */
            l2d
            ldc "ms"
            getstatic org.openjdk.jmh.results.AggregationPolicy.MAX:Lorg/openjdk/jmh/results/AggregationPolicy;
            invokespecial org.openjdk.jmh.results.ScalarResult.<init>:(Ljava/lang/String;DLjava/lang/String;Lorg/openjdk/jmh/results/AggregationPolicy;)V
            aastore
         5: .line 68
            invokestatic java.util.Arrays.asList:([Ljava/lang/Object;)Ljava/util/List;
         6: areturn
        end local 5 // long curTime
         7: .line 72
      StackMap locals: org.openjdk.jmh.profile.CompilerProfiler org.openjdk.jmh.infra.BenchmarkParams org.openjdk.jmh.infra.IterationParams org.openjdk.jmh.results.IterationResult java.lang.management.CompilationMXBean
      StackMap stack: java.lang.UnsupportedOperationException
            pop
         8: .line 73
            invokestatic java.util.Collections.emptyList:()Ljava/util/List;
            areturn
        end local 4 // java.lang.management.CompilationMXBean comp
        end local 3 // org.openjdk.jmh.results.IterationResult result
        end local 2 // org.openjdk.jmh.infra.IterationParams iterationParams
        end local 1 // org.openjdk.jmh.infra.BenchmarkParams benchmarkParams
        end local 0 // org.openjdk.jmh.profile.CompilerProfiler this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    9     0             this  Lorg/openjdk/jmh/profile/CompilerProfiler;
            0    9     1  benchmarkParams  Lorg/openjdk/jmh/infra/BenchmarkParams;
            0    9     2  iterationParams  Lorg/openjdk/jmh/infra/IterationParams;
            0    9     3           result  Lorg/openjdk/jmh/results/IterationResult;
            1    9     4             comp  Ljava/lang/management/CompilationMXBean;
            2    7     5          curTime  J
      Exception table:
        from    to  target  type
           1     6       7  Class java.lang.UnsupportedOperationException
    Signature: (Lorg/openjdk/jmh/infra/BenchmarkParams;Lorg/openjdk/jmh/infra/IterationParams;Lorg/openjdk/jmh/results/IterationResult;)Ljava/util/Collection<+Lorg/openjdk/jmh/results/Result;>;
    MethodParameters:
                 Name  Flags
      benchmarkParams  
      iterationParams  
      result           
}
SourceFile: "CompilerProfiler.java"