public class com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark extends com.oracle.truffle.api.benchmark.TruffleBenchmark
minor version: 0
major version: 59
flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
this_class: com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark
super_class: com.oracle.truffle.api.benchmark.TruffleBenchmark
{
static final sun.misc.Unsafe UNSAFE;
descriptor: Lsun/misc/Unsafe;
flags: (0x0018) ACC_STATIC, ACC_FINAL
public java.lang.String count;
descriptor: Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
RuntimeVisibleAnnotations:
org.openjdk.jmh.annotations.Param(value = {"10", "100", "1_000", "1_000_000"})
byte[] array;
descriptor: [B
flags: (0x0000)
static void <clinit>();
descriptor: ()V
flags: (0x0008) ACC_STATIC
Code:
stack=2, locals=1, args_size=0
0: ldc Lsun/misc/Unsafe;
ldc "theUnsafe"
invokevirtual java.lang.Class.getDeclaredField:(Ljava/lang/String;)Ljava/lang/reflect/Field;
astore 0
start local 0 1: aload 0
iconst_1
invokevirtual java.lang.reflect.Field.setAccessible:(Z)V
2: aload 0
aconst_null
invokevirtual java.lang.reflect.Field.get:(Ljava/lang/Object;)Ljava/lang/Object;
checkcast sun.misc.Unsafe
putstatic com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.UNSAFE:Lsun/misc/Unsafe;
end local 0 3: goto 6
StackMap locals:
StackMap stack: java.lang.Exception
4: pop
5: new java.lang.RuntimeException
dup
invokespecial java.lang.RuntimeException.<init>:()V
athrow
6: StackMap locals:
StackMap stack:
return
LocalVariableTable:
Start End Slot Name Signature
1 3 0 f Ljava/lang/reflect/Field;
Exception table:
from to target type
0 3 4 Class java.lang.Exception
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
invokespecial com.oracle.truffle.api.benchmark.TruffleBenchmark.<init>:()V
return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lcom/oracle/truffle/api/benchmark/ByteArrayAccessCloneBenchmark;
public void setup();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=3, args_size=1
start local 0 0: new java.util.Random
dup
invokespecial java.util.Random.<init>:()V
astore 1
start local 1 1: aload 1
lconst_0
invokevirtual java.util.Random.setSeed:(J)V
2: aload 0
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.count:Ljava/lang/String;
ldc "_"
ldc ""
invokevirtual java.lang.String.replaceAll:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
newarray 8
putfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
3: iconst_0
istore 2
start local 2 4: goto 7
5: StackMap locals: java.util.Random int
StackMap stack:
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
iload 2
aload 1
sipush 256
invokevirtual java.util.Random.nextInt:(I)I
i2b
bastore
6: iinc 2 1
StackMap locals:
StackMap stack:
7: iload 2
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
arraylength
if_icmplt 5
end local 2 8: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 9 0 this Lcom/oracle/truffle/api/benchmark/ByteArrayAccessCloneBenchmark;
1 9 1 r Ljava/util/Random;
4 8 2 i I
RuntimeVisibleAnnotations:
org.openjdk.jmh.annotations.Setup(value = org.openjdk.jmh.annotations.Level.Trial:Lorg/openjdk/jmh/annotations/Level;)
public byte[] unsafeCopyMemory();
descriptor: ()[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=9, locals=2, args_size=1
start local 0 0: aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
arraylength
newarray 8
astore 1
start local 1 1: getstatic com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.UNSAFE:Lsun/misc/Unsafe;
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
lconst_0
aload 1
lconst_0
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
arraylength
i2l
invokevirtual sun.misc.Unsafe.copyMemory:(Ljava/lang/Object;JLjava/lang/Object;JJ)V
2: aload 1
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Lcom/oracle/truffle/api/benchmark/ByteArrayAccessCloneBenchmark;
1 3 1 copy [B
RuntimeVisibleAnnotations:
org.openjdk.jmh.annotations.Benchmark()
public byte[] systemArrayCopy();
descriptor: ()[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=2, args_size=1
start local 0 0: aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
arraylength
newarray 8
astore 1
start local 1 1: aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
iconst_0
aload 1
iconst_0
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
2: aload 1
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Lcom/oracle/truffle/api/benchmark/ByteArrayAccessCloneBenchmark;
1 3 1 copy [B
RuntimeVisibleAnnotations:
org.openjdk.jmh.annotations.Benchmark()
public byte[] arrayLoopCopy();
descriptor: ()[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=3, args_size=1
start local 0 0: aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
arraylength
newarray 8
astore 1
start local 1 1: iconst_0
istore 2
start local 2 2: goto 5
3: StackMap locals: byte[] int
StackMap stack:
aload 1
iload 2
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
iload 2
baload
bastore
4: iinc 2 1
StackMap locals:
StackMap stack:
5: iload 2
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
arraylength
if_icmplt 3
end local 2 6: aload 1
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 7 0 this Lcom/oracle/truffle/api/benchmark/ByteArrayAccessCloneBenchmark;
1 7 1 copy [B
2 6 2 i I
RuntimeVisibleAnnotations:
org.openjdk.jmh.annotations.Benchmark()
public byte[] arraysCopyOf();
descriptor: ()[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
start local 0 0: aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
arraylength
invokestatic java.util.Arrays.copyOf:([BI)[B
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lcom/oracle/truffle/api/benchmark/ByteArrayAccessCloneBenchmark;
RuntimeVisibleAnnotations:
org.openjdk.jmh.annotations.Benchmark()
public byte[] arrayClone();
descriptor: ()[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
getfield com.oracle.truffle.api.benchmark.ByteArrayAccessCloneBenchmark.array:[B
invokevirtual byte[].clone:()Ljava/lang/Object;
checkcast byte[]
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lcom/oracle/truffle/api/benchmark/ByteArrayAccessCloneBenchmark;
RuntimeVisibleAnnotations:
org.openjdk.jmh.annotations.Benchmark()
}
SourceFile: "ByteArrayAccessCloneBenchmark.java"
RuntimeVisibleAnnotations:
org.openjdk.jmh.annotations.State(value = org.openjdk.jmh.annotations.Scope.Benchmark:Lorg/openjdk/jmh/annotations/Scope;)