qwwdfsad

Code:
[Entry Point]
[Constants]
  # {method} {0x0000000125c23120} 'inc' '()V' in 'org/jctools/counters/FixedSizeStripedLongCounterV8'
  #           [sp+0x30]  (sp of caller)
  0x000000010c7de2a0: mov    0x8(%rsi),%r10d
  0x000000010c7de2a4: shl    $0x3,%r10
  0x000000010c7de2a8: cmp    %r10,%rax
  0x000000010c7de2ab: jne    0x000000010c6e6e20  ;   {runtime_call}
  0x000000010c7de2b1: data32 xchg %ax,%ax

qwwdfsad

32 stripes, 8u72, 32-cores Xeon with disabled hyper-threading

taskset -c 0-3 java -jar microbenchmarks.jar CountersBenchmark -bm avgt -tg 1,3
 
Benchmark                        (counterType)  Mode  Cnt    Score    Error  Units
CountersBenchmark.rw                AtomicLong  avgt   20  108.288 ±  9.195  ns/op
CountersBenchmark.rw:get            AtomicLong  avgt   20   27.755 ±  4.454  ns/op
CountersBenchmark.rw:inc            AtomicLong  avgt   20  135.132 ± 10.859  ns/op
CountersBenchmark.rw                 LongAdder  avgt   20   48.061 ±  1.584  ns/op
CountersBenchmark.rw:get             LongAdder  avgt   20   75.350 ±  3.876  ns/op

qwwdfsad

package org.qwwdfsad.benchmarks;

import com.google.gson.Gson;
import org.openjdk.jmh.annotations.*;

import java.util.concurrent.TimeUnit;

@BenchmarkMode(Mode.Throughput)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@Threads(8)