SafepointProfiling.java

public class SafepointProfiling {
  @Param("1000")
  int size;
  byte[] buffer;
  byte[] dst;
  boolean result;

  @Setup
  public final void setup() {
    buffer = new byte[size];
    dst = new byte[size];
  }
  
  @Benchmark
  public void meSoHotInline() {
    byte b = 0;
    for (int i = 0; i < size; i++) {
      b += buffer[i];
    }
    result = b == 1;
  }
  
# Benchmark: safepoint.profiling.SafepointProfiling.meSoHotInline
JMH Stack profiler:
 99.6%  99.8% meSoHotInline_avgt_jmhStub:165

Honest Profiler:
 (t 98.7,s 98.7) meSoHotInline @ (bci=12,line=18)
 (t  0.8,s  0.8) meSoHotInline_avgt_jmhStub @ (bci=27,line=165)

  @Benchmark
  @CompilerControl(CompilerControl.Mode.DONT_INLINE)
  public void meSoHotNoInline() {
    byte b = 0;
    for (int i = 0; i < size; i++) {
      b += buffer[i]; 
    }
    result = b == 1;
  }

# Benchmark: safepoint.profiling.SafepointProfiling.meSoHotNoInline
JMH Stack profiler:
 99.4%  99.6% meSoHotNoInline_avgt_jmhStub:163

Honest Profiler:
 (t 98.9,s 98.9) meSoHotNoInline @ (bci=12,line=36)
 (t  0.4,s  0.4) AGCT::Unknown not Java[ERR=-3] @ (bci=-1,line=-100)
 (t  0.2,s  0.2) AGCT::Unknown Java[ERR=-5] @ (bci=-1,line=-100)
 (t  0.1,s  0.1) meSoHotNoInline_avgt_jmhStub @ (bci=27,line=165)
 (t 99.0,s  0.1) meSoHotNoInline_avgt_jmhStub @ (bci=14,line=163)
}