# JMH 1.6.3 (released 4 days ago)
# VM invoker: /aurora/clredest/contended/jdk-padded/jre/bin/java
# VM options: -XX:-UseBiasedLocking -XX:+UseHeavyMonitors
# Warmup: <none>
# Measurement: 1 iterations, 500 ms each, 4000000 calls per op
# Timeout: 10 min per iteration
# Threads: 16 threads
# Benchmark mode: Single shot invocation time
# Benchmark: org.openjdk.micros.contended.ContendedMonitorBench.synchronizeAndAccessContendedHeader
# Parameters: (monitors = 8, step = 8)

# Run progress: 0.00% complete, ETA 00:00:00
# Fork: 1 of 1
# Preparing profilers: perf 
# Profilers consume stderr from target VM, use -v EXTRA to copy to console
Iteration   1: 1715808.199 ±(99.9%) 323890.056 us/op
# Processing profiler results: perf 


Run result: 1715808.20 us/op (<= 2 samples)

Perf stats:
--------------------------------------------------

      22447.340438 task-clock                #    8.960 CPUs utilized          
           725,580 context-switches          #    0.032 M/sec                  
               258 CPU-migrations            #    0.000 M/sec                  
             9,388 page-faults               #    0.000 M/sec                  
    61,479,315,965 cycles                    #    2.739 GHz                     [25.63%]
    42,844,694,005 stalled-cycles-frontend   #   69.69% frontend cycles idle    [25.62%]
    32,896,427,436 stalled-cycles-backend    #   53.51% backend  cycles idle    [25.74%]
    45,683,140,773 instructions              #    0.74  insns per cycle        
                                             #    0.94  stalled cycles per insn [31.82%]
     8,493,205,139 branches                  #  378.361 M/sec                   [31.49%]
        40,775,449 branch-misses             #    0.48% of all branches         [31.15%]
    15,774,709,300 L1-dcache-loads           #  702.743 M/sec                   [31.11%]
       262,034,230 L1-dcache-load-misses     #    1.66% of all L1-dcache hits   [30.79%]
           984,594 LLC-loads                 #    0.044 M/sec                   [25.11%]
           531,241 LLC-load-misses           #   53.96% of all LL-cache hits    [25.40%]
   <not supported> L1-icache-loads         
       215,320,806 L1-icache-load-misses     #    0.00% of all L1-icache hits   [25.42%]
    15,602,207,523 dTLB-loads                #  695.058 M/sec                   [25.90%]
         7,083,942 dTLB-load-misses          #    0.05% of all dTLB cache hits  [25.71%]
         6,369,684 iTLB-loads                #    0.284 M/sec                   [25.73%]
         6,666,436 iTLB-load-misses          #  104.66% of all iTLB cache hits  [25.77%]
   <not supported> L1-dcache-prefetches    
        35,205,417 L1-dcache-prefetch-misses #    1.568 M/sec                   [25.51%]

       2.505332127 seconds time elapsed


WARNING: Your system uses old "perf", which can not delay data collection.
Therefore, perf performance data includes benchmark warmup.


# JMH 1.6.3 (released 4 days ago)
# VM invoker: /aurora/clredest/contended/jdk-padded/jre/bin/java
# VM options: -XX:-UseBiasedLocking -XX:+UseHeavyMonitors
# Warmup: <none>
# Measurement: 1 iterations, 500 ms each, 4000000 calls per op
# Timeout: 10 min per iteration
# Threads: 16 threads
# Benchmark mode: Single shot invocation time
# Benchmark: org.openjdk.micros.contended.ContendedMonitorBench.synchronizeAndAccessOwnHeader
# Parameters: (monitors = 8, step = 8)

# Run progress: 33.33% complete, ETA 00:00:05
# Fork: 1 of 1
# Preparing profilers: perf 
# Profilers consume stderr from target VM, use -v EXTRA to copy to console
Iteration   1: 1744995.848 ±(99.9%) 321100.106 us/op
# Processing profiler results: perf 


Run result: 1744995.85 us/op (<= 2 samples)

Perf stats:
--------------------------------------------------

      23574.437527 task-clock                #   10.102 CPUs utilized          
           567,994 context-switches          #    0.024 M/sec                  
               252 CPU-migrations            #    0.000 M/sec                  
             9,362 page-faults               #    0.000 M/sec                  
    65,085,422,190 cycles                    #    2.761 GHz                     [25.55%]
    46,603,842,059 stalled-cycles-frontend   #   71.60% frontend cycles idle    [25.20%]
    37,598,554,480 stalled-cycles-backend    #   57.77% backend  cycles idle    [25.25%]
    45,634,144,346 instructions              #    0.70  insns per cycle        
                                             #    1.02  stalled cycles per insn [31.73%]
     8,540,214,887 branches                  #  362.266 M/sec                   [31.85%]
        39,041,373 branch-misses             #    0.46% of all branches         [32.15%]
    15,580,981,047 L1-dcache-loads           #  660.927 M/sec                   [32.55%]
       236,967,820 L1-dcache-load-misses     #    1.52% of all L1-dcache hits   [32.17%]
           550,200 LLC-loads                 #    0.023 M/sec                   [25.39%]
           332,315 LLC-load-misses           #   60.40% of all LL-cache hits    [25.08%]
   <not supported> L1-icache-loads         
       205,155,527 L1-icache-load-misses     #    0.00% of all L1-icache hits   [24.93%]
    15,417,984,878 dTLB-loads                #  654.013 M/sec                   [25.02%]
         7,020,413 dTLB-load-misses          #    0.05% of all dTLB cache hits  [25.05%]
        12,120,443 iTLB-loads                #    0.514 M/sec                   [25.25%]
         6,364,463 iTLB-load-misses          #   52.51% of all iTLB cache hits  [25.46%]
   <not supported> L1-dcache-prefetches    
        32,785,730 L1-dcache-prefetch-misses #    1.391 M/sec                   [25.48%]

       2.333571431 seconds time elapsed


WARNING: Your system uses old "perf", which can not delay data collection.
Therefore, perf performance data includes benchmark warmup.


# JMH 1.6.3 (released 4 days ago)
# VM invoker: /aurora/clredest/contended/jdk-padded/jre/bin/java
# VM options: -XX:-UseBiasedLocking -XX:+UseHeavyMonitors
# Warmup: <none>
# Measurement: 1 iterations, 500 ms each, 4000000 calls per op
# Timeout: 10 min per iteration
# Threads: 16 threads
# Benchmark mode: Single shot invocation time
# Benchmark: org.openjdk.micros.contended.ContendedMonitorBench.synchronizeAndAccessUncontendedHeader
# Parameters: (monitors = 8, step = 8)

# Run progress: 66.67% complete, ETA 00:00:02
# Fork: 1 of 1
# Preparing profilers: perf 
# Profilers consume stderr from target VM, use -v EXTRA to copy to console
Iteration   1: 857986.192 ±(99.9%) 91193.322 us/op
# Processing profiler results: perf 


Run result: 857986.19 us/op (<= 2 samples)

Perf stats:
--------------------------------------------------

      12546.351167 task-clock                #   10.330 CPUs utilized          
           173,913 context-switches          #    0.014 M/sec                  
               242 CPU-migrations            #    0.000 M/sec                  
             9,340 page-faults               #    0.001 M/sec                  
    34,746,500,036 cycles                    #    2.769 GHz                     [25.75%]
    26,700,336,304 stalled-cycles-frontend   #   76.84% frontend cycles idle    [25.56%]
    22,741,460,638 stalled-cycles-backend    #   65.45% backend  cycles idle    [25.63%]
    18,496,480,881 instructions              #    0.53  insns per cycle        
                                             #    1.44  stalled cycles per insn [32.03%]
     3,671,519,145 branches                  #  292.636 M/sec                   [32.52%]
        26,147,611 branch-misses             #    0.71% of all branches         [32.68%]
     6,276,749,766 L1-dcache-loads           #  500.285 M/sec                   [32.55%]
       101,857,235 L1-dcache-load-misses     #    1.62% of all L1-dcache hits   [32.42%]
           146,447 LLC-loads                 #    0.012 M/sec                   [25.42%]
           107,145 LLC-load-misses           #   73.16% of all LL-cache hits    [25.49%]
   <not supported> L1-icache-loads         
        71,655,882 L1-icache-load-misses     #    0.00% of all L1-icache hits   [25.46%]
     6,091,979,781 dTLB-loads                #  485.558 M/sec                   [25.25%]
         3,219,091 dTLB-load-misses          #    0.05% of all dTLB cache hits  [25.08%]
         5,414,429 iTLB-loads                #    0.432 M/sec                   [25.49%]
         3,570,634 iTLB-load-misses          #   65.95% of all iTLB cache hits  [25.73%]
   <not supported> L1-dcache-prefetches    
        15,302,430 L1-dcache-prefetch-misses #    1.220 M/sec                   [25.73%]

       1.214583986 seconds time elapsed


WARNING: Your system uses old "perf", which can not delay data collection.
Therefore, perf performance data includes benchmark warmup.


# Run complete. Total time: 00:00:06

Benchmark                                                         (monitors)  (step)  Mode  Cnt        Score   Error  Units
ContendedMonitorBench.synchronizeAndAccessContendedHeader                  8       8    ss    1  1715808.199 ±   NaN  us/op
ContendedMonitorBench.synchronizeAndAccessContendedHeader:@cpi             8       8    ss    1        1.346 ±   NaN    CPI
ContendedMonitorBench.synchronizeAndAccessOwnHeader                        8       8    ss    1  1744995.848 ±   NaN  us/op
ContendedMonitorBench.synchronizeAndAccessOwnHeader:@cpi                   8       8    ss    1        1.426 ±   NaN    CPI
ContendedMonitorBench.synchronizeAndAccessUncontendedHeader                8       8    ss    1   857986.192 ±   NaN  us/op
ContendedMonitorBench.synchronizeAndAccessUncontendedHeader:@cpi           8       8    ss    1        1.879 ±   NaN    CPI