Only use busy-looping for rendezvous channels

[adamw]

No description provided.

[github-actions]

Benchmark results

Java:
(capacity)  (chainLength)  (parallelism)  Mode  Cnt     Score     Error  Units
BufferedBenchmark.arrayBlockingQueue            16            N/A            N/A  avgt    5   150.644 ±  13.651  ns/op
BufferedBenchmark.arrayBlockingQueue           100            N/A            N/A  avgt    5   111.264 ±  17.001  ns/op
BufferedBenchmark.channel                       16            N/A            N/A  avgt    5    85.901 ±   2.878  ns/op
BufferedBenchmark.channel                      100            N/A            N/A  avgt    5    79.505 ±   1.483  ns/op
ChainedBenchmark.channelChain                    0          10000            N/A  avgt    5  1032.052 ±  23.061  ns/op
ChainedBenchmark.channelChain                   16          10000            N/A  avgt    5    29.485 ±   7.614  ns/op
ChainedBenchmark.channelChain                  100          10000            N/A  avgt    5    20.038 ±   2.183  ns/op
ChainedBenchmark.queueChain                      0          10000            N/A  avgt    5   126.384 ±  35.981  ns/op
ChainedBenchmark.queueChain                     16          10000            N/A  avgt    5    16.121 ±   0.711  ns/op
ChainedBenchmark.queueChain                    100          10000            N/A  avgt    5    11.138 ±   0.473  ns/op
ParallelBenchmark.parallelChannels               0            N/A          10000  avgt    5   921.032 ± 154.342  ns/op
ParallelBenchmark.parallelChannels              16            N/A          10000  avgt    5    33.567 ±  10.997  ns/op
ParallelBenchmark.parallelChannels             100            N/A          10000  avgt    5    21.867 ±   3.018  ns/op
ParallelBenchmark.parallelQueues                 0            N/A          10000  avgt    5   106.039 ±  26.579  ns/op
ParallelBenchmark.parallelQueues                16            N/A          10000  avgt    5    22.034 ±   4.260  ns/op
ParallelBenchmark.parallelQueues               100            N/A          10000  avgt    5     8.947 ±   0.848  ns/op
RendezvousBenchmark.channel                    N/A            N/A            N/A  avgt    5   214.342 ±  33.223  ns/op
RendezvousBenchmark.exchanger                  N/A            N/A            N/A  avgt    5    88.532 ±   8.275  ns/op
RendezvousBenchmark.synchronousQueue           N/A            N/A            N/A  avgt    5   553.633 ± 145.880  ns/op
SelectBenchmark.selectWithSingleClause         N/A            N/A            N/A  avgt    5   230.030 ±  47.402  ns/op
SelectBenchmark.selectWithTwoClauses           N/A            N/A            N/A  avgt    5   209.851 ±  14.746  ns/op

Kotlin:
(capacity)  (chainLength)  (parallelism)  Mode  Cnt    Score   Error  Units
BufferedKotlinBenchmark.channel_defaultDispatcher                       16            N/A            N/A  avgt    5   44.076 ± 2.317  ns/op
BufferedKotlinBenchmark.channel_defaultDispatcher                      100            N/A            N/A  avgt    5   32.479 ± 0.404  ns/op
ChainedKotlinBenchmark.channelChain_defaultDispatcher                    0          10000            N/A  avgt    5   57.842 ± 5.115  ns/op
ChainedKotlinBenchmark.channelChain_defaultDispatcher                   16          10000            N/A  avgt    5   18.613 ± 0.383  ns/op
ChainedKotlinBenchmark.channelChain_defaultDispatcher                  100          10000            N/A  avgt    5   16.035 ± 1.050  ns/op
ChainedKotlinBenchmark.channelChain_eventLoop                            0          10000            N/A  avgt    5   94.461 ± 2.543  ns/op
ChainedKotlinBenchmark.channelChain_eventLoop                           16          10000            N/A  avgt    5   34.549 ± 3.144  ns/op
ChainedKotlinBenchmark.channelChain_eventLoop                          100          10000            N/A  avgt    5   31.426 ± 0.091  ns/op
ParallelKotlinBenchmark.parallelChannels_defaultDispatcher               0            N/A          10000  avgt    5  168.069 ± 6.986  ns/op
ParallelKotlinBenchmark.parallelChannels_defaultDispatcher              16            N/A          10000  avgt    5   19.952 ± 0.765  ns/op
ParallelKotlinBenchmark.parallelChannels_defaultDispatcher             100            N/A          10000  avgt    5   15.020 ± 0.203  ns/op
RendezvousKotlinBenchmark.channel_defaultDispatcher                    N/A            N/A            N/A  avgt    5  144.959 ± 0.734  ns/op
SelectKotlinBenchmark.selectWithSingleClause_defaultDispatcher         N/A            N/A            N/A  avgt    5  242.379 ± 1.112  ns/op
SelectKotlinBenchmark.selectWithTwoClauses_defaultDispatcher           N/A            N/A            N/A  avgt    5  346.922 ± 3.079  ns/op

[github-actions]

Benchmark results

Java:
(capacity)  (chainLength)  (parallelism)  Mode  Cnt     Score     Error  Units
BufferedBenchmark.arrayBlockingQueue            16            N/A            N/A  avgt    5   163.943 ±  19.383  ns/op
BufferedBenchmark.arrayBlockingQueue           100            N/A            N/A  avgt    5   115.402 ±   5.101  ns/op
BufferedBenchmark.channel                       16            N/A            N/A  avgt    5    82.492 ±   2.562  ns/op
BufferedBenchmark.channel                      100            N/A            N/A  avgt    5    78.447 ±   5.323  ns/op
ChainedBenchmark.channelChain                    0          10000            N/A  avgt    5  1021.425 ±  20.525  ns/op
ChainedBenchmark.channelChain                   16          10000            N/A  avgt    5    29.464 ±   0.728  ns/op
ChainedBenchmark.channelChain                  100          10000            N/A  avgt    5    19.600 ±   0.665  ns/op
ChainedBenchmark.queueChain                      0          10000            N/A  avgt    5   125.647 ±  46.578  ns/op
ChainedBenchmark.queueChain                     16          10000            N/A  avgt    5    16.831 ±   1.606  ns/op
ChainedBenchmark.queueChain                    100          10000            N/A  avgt    5     9.923 ±   0.178  ns/op
ParallelBenchmark.parallelChannels               0            N/A          10000  avgt    5   917.338 ± 158.440  ns/op
ParallelBenchmark.parallelChannels              16            N/A          10000  avgt    5    36.586 ±   0.193  ns/op
ParallelBenchmark.parallelChannels             100            N/A          10000  avgt    5    22.837 ±   0.119  ns/op
ParallelBenchmark.parallelQueues                 0            N/A          10000  avgt    5   118.829 ±   3.193  ns/op
ParallelBenchmark.parallelQueues                16            N/A          10000  avgt    5    22.790 ±   3.934  ns/op
ParallelBenchmark.parallelQueues               100            N/A          10000  avgt    5     8.727 ±   0.420  ns/op
RendezvousBenchmark.channel                    N/A            N/A            N/A  avgt    5   208.536 ±  24.965  ns/op
RendezvousBenchmark.exchanger                  N/A            N/A            N/A  avgt    5    87.423 ±  10.783  ns/op
RendezvousBenchmark.synchronousQueue           N/A            N/A            N/A  avgt    5   632.112 ± 140.630  ns/op
SelectBenchmark.selectWithSingleClause         N/A            N/A            N/A  avgt    5   237.722 ±  16.677  ns/op
SelectBenchmark.selectWithTwoClauses           N/A            N/A            N/A  avgt    5   223.369 ±  24.623  ns/op

Kotlin:
(capacity)  (chainLength)  (parallelism)  Mode  Cnt    Score    Error  Units
BufferedKotlinBenchmark.channel_defaultDispatcher                       16            N/A            N/A  avgt    5   45.127 ±  0.507  ns/op
BufferedKotlinBenchmark.channel_defaultDispatcher                      100            N/A            N/A  avgt    5   32.644 ±  0.147  ns/op
ChainedKotlinBenchmark.channelChain_defaultDispatcher                    0          10000            N/A  avgt    5   58.474 ±  4.153  ns/op
ChainedKotlinBenchmark.channelChain_defaultDispatcher                   16          10000            N/A  avgt    5   18.168 ±  0.964  ns/op
ChainedKotlinBenchmark.channelChain_defaultDispatcher                  100          10000            N/A  avgt    5   14.685 ±  0.802  ns/op
ChainedKotlinBenchmark.channelChain_eventLoop                            0          10000            N/A  avgt    5   93.733 ±  3.036  ns/op
ChainedKotlinBenchmark.channelChain_eventLoop                           16          10000            N/A  avgt    5   33.949 ±  0.856  ns/op
ChainedKotlinBenchmark.channelChain_eventLoop                          100          10000            N/A  avgt    5   31.524 ±  0.109  ns/op
ParallelKotlinBenchmark.parallelChannels_defaultDispatcher               0            N/A          10000  avgt    5   72.845 ±  5.514  ns/op
ParallelKotlinBenchmark.parallelChannels_defaultDispatcher              16            N/A          10000  avgt    5   21.344 ±  1.609  ns/op
ParallelKotlinBenchmark.parallelChannels_defaultDispatcher             100            N/A          10000  avgt    5   15.517 ±  0.471  ns/op
RendezvousKotlinBenchmark.channel_defaultDispatcher                    N/A            N/A            N/A  avgt    5  141.373 ±  1.958  ns/op
SelectKotlinBenchmark.selectWithSingleClause_defaultDispatcher         N/A            N/A            N/A  avgt    5  237.867 ±  1.519  ns/op
SelectKotlinBenchmark.selectWithTwoClauses_defaultDispatcher           N/A            N/A            N/A  avgt    5  334.052 ± 28.943  ns/op