GC Benchmarks Suite
----------------------------------------------------------------------------------------------------------

# JMH 1.19 (released 173 days ago)
# JDK 10-internal, VM 10-internal+0-adhoc.rkennke.shenandoah-jdk10
# Linux, amd64, 3.10.0-693.5.2.el7.x86_64

  These tests assess the garbage collector performance. These tests implicitly test 
  other aspects of system under test, including hardware, OS and JVM tuning. Some tests 
  may implicitly test the testing infrastructure itself, although the benchmark code 
  tries to reduce the infrastructural impact as much as possible. 

  If you are sharing this report, please share it in full, including the JVM version, 
  OS flavor and version, plus some data on used hardware. 

  Use -h to get help on available options.

  Available tests: 
    alloc.peak.object    
    alloc.peak.intarray  
    alloc.peak.refarray  
    alloc.uninit.intarray 
    retain.array         
    retain.linkedlist    
    retain.tree          
    retain.hashmap       
    fragger.array        
    fragger.tree         
    fragger.linkedlist   
    sieve.object         
    roots.strings        
    roots.synchronizers  
    roots.locals         
    runtime.reads.plain  
    runtime.reads.volatile 
    runtime.writes.plain 
    runtime.writes.volatile 

  Matching tests:
    runtime.reads.plain 

===== runtime.reads.plain

  Estimates the runtime overhead for reads. These costs include all the infrastructural 
  overheads too, and therefore the score differences matter, not their absolute values. 
  This test is single-threaded. Reads plain Java fields. 

  Test dimensions: 
    Mode: available JVM modes
    Type: Java types

  Mode                           Type                           Performance                         Cycles                    Instructions              Branches                  

  -Xint                          none                           580,87 ± 28,83 ns/op                -                         -                         -                        
  -Xint                          boolean                        593,94 ± 28,40 ns/op                -                         -                         -                        
  -Xint                          byte                           587,03 ± 8,91 ns/op                 -                         -                         -                        
  -Xint                          short                          589,20 ± 24,71 ns/op                -                         -                         -                        
  -Xint                          char                           588,68 ± 12,75 ns/op                -                         -                         -                        
  -Xint                          int                            588,88 ± 18,30 ns/op                -                         -                         -                        
  -Xint                          float                          592,84 ± 8,60 ns/op                 -                         -                         -                        
  -Xint                          long                           596,16 ± 20,92 ns/op                -                         -                         -                        
  -Xint                          double                         591,76 ± 15,21 ns/op                -                         -                         -                        
  -Xint                          Object                         590,03 ± 18,87 ns/op                -                         -                         -                        

  -XX:TieredStopAtLevel=1        none                           6,92 ± 0,11 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        boolean                        8,47 ± 0,21 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        byte                           8,43 ± 0,07 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        short                          8,51 ± 0,13 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        char                           8,32 ± 0,03 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        int                            8,25 ± 0,06 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        float                          8,23 ± 0,11 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        long                           8,53 ± 1,01 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        double                         8,21 ± 0,04 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=1        Object                         8,40 ± 0,37 ns/op                   -                         -                         -                        

  -XX:TieredStopAtLevel=4        none                           8,50 ± 0,47 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        boolean                        9,15 ± 0,04 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        byte                           9,14 ± 0,03 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        short                          9,15 ± 0,03 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        char                           9,33 ± 1,10 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        int                            9,15 ± 0,02 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        float                          9,15 ± 0,03 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        long                           9,33 ± 1,11 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        double                         9,15 ± 0,03 ns/op                   -                         -                         -                        
  -XX:TieredStopAtLevel=4        Object                         9,17 ± 0,09 ns/op                   -                         -                         -                        

  Test took 1092 seconds.