weyoss/callback-vs-promise-vs-async-await

## callback-vs-promise-vs-async-await
Callback vs Promise vs Async/Await benchmarks

## info
Benchmark Files
https://github.com/petkaantonov/bluebird/tree/master/benchmark

Platform Info
Linux 5.13.0-40-generic x64
Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz × 4

Summary
In terms of performance and memory usage, there is no alternative to callbacks.
Promise and async/await are slower and use more resources.

## node-v16
ls ./doxbee-sequential/*.js | sed -e 's|\.js||' | xargs node ./performance.js --p 1 --t 1 --n 10000

results for 10000 parallel executions, 1 ms per I/O op

file                                    time(ms)  memory(MB)
callbacks-baseline                           329       24.58
callbacks-caolan-async-waterfall             420       50.55
callbacks-suguru03-neo-async-waterfall       426       41.49
promises-bluebird-generator                  499       42.61
promises-native-async-await                  558       56.47
promises-bluebird                            570       50.09
promises-ecmascript6-native                  614       67.87
promises-lvivski-davy                        622       91.29
promises-cujojs-when                         705       67.07
promises-then-promise                        782       75.79
generators-tj-co                             804       59.77
promises-tildeio-rsvp                        911       91.99
promises-calvinmetcalf-lie                  1099      141.34
promises-dfilatov-vow                       1445      141.14
promises-obvious-kew                        1471      104.65
observables-pozadi-kefir                    1499      146.91
streamline-generators                       1540       77.86
promises-medikoo-deferred                   1758      132.80
streamline-callbacks                        2190      102.14
observables-Reactive-Extensions-RxJS        2732      218.70
promises-kriskowal-q                        5838      359.06
observables-caolan-highland                 6688      488.01
observables-baconjs-bacon.js               10233      761.92

Platform info:
Linux 5.13.0-40-generic x64
Node.JS 16.14.0
V8 9.4.146.24-node.20
Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz × 4

ls ./madeup-parallel/*.js | sed -e 's|\.js||' | xargs node ./performance.js --p 25 --t 1 --n 10000

results for 10000 parallel executions, 1 ms per I/O op

file                                   time(ms)  memory(MB)
callbacks-baseline                          624       82.00
callbacks-suguru03-neo-async-parallel       719       88.20
promises-bluebird                          1037      105.51
promises-lvivski-davy                      1099      156.89
callbacks-caolan-async-parallel            1141      116.48
promises-bluebird-generator                1198      106.91
promises-cujojs-when                       1391      157.09
promises-ecmascript6-native                2280      212.14
generators-tj-co                           2289      225.09
promises-native-async-await                2346      218.36
promises-then-promise                      2358      235.82
promises-calvinmetcalf-lie                 2927      330.71
promises-tildeio-rsvp                      3006      315.84
promises-medikoo-deferred                  3859      356.98
promises-dfilatov-vow                      5261      476.34
promises-obvious-kew                       5971      657.50
streamline-generators                     14209      857.03
streamline-callbacks                      20183     1066.83

Platform info:
Linux 5.13.0-40-generic x64
Node.JS 16.14.0
V8 9.4.146.24-node.20
Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz × 4
	Benchmark Files
	https://github.com/petkaantonov/bluebird/tree/master/benchmark

	Platform Info
	Linux 5.13.0-40-generic x64
	Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz × 4

	Summary
	In terms of performance and memory usage, there is no alternative to callbacks.
	Promise and async/await are slower and use more resources.
	ls ./doxbee-sequential/*.js \| sed -e 's\|\.js\|\|' \| xargs node ./performance.js --p 1 --t 1 --n 10000

	results for 10000 parallel executions, 1 ms per I/O op

	file time(ms) memory(MB)
	callbacks-baseline 329 24.58
	callbacks-caolan-async-waterfall 420 50.55
	callbacks-suguru03-neo-async-waterfall 426 41.49
	promises-bluebird-generator 499 42.61
	promises-native-async-await 558 56.47
	promises-bluebird 570 50.09
	promises-ecmascript6-native 614 67.87
	promises-lvivski-davy 622 91.29
	promises-cujojs-when 705 67.07
	promises-then-promise 782 75.79
	generators-tj-co 804 59.77
	promises-tildeio-rsvp 911 91.99
	promises-calvinmetcalf-lie 1099 141.34
	promises-dfilatov-vow 1445 141.14
	promises-obvious-kew 1471 104.65
	observables-pozadi-kefir 1499 146.91
	streamline-generators 1540 77.86
	promises-medikoo-deferred 1758 132.80
	streamline-callbacks 2190 102.14
	observables-Reactive-Extensions-RxJS 2732 218.70
	promises-kriskowal-q 5838 359.06
	observables-caolan-highland 6688 488.01
	observables-baconjs-bacon.js 10233 761.92

	Platform info:
	Linux 5.13.0-40-generic x64
	Node.JS 16.14.0
	V8 9.4.146.24-node.20
	Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz × 4

	ls ./madeup-parallel/*.js \| sed -e 's\|\.js\|\|' \| xargs node ./performance.js --p 25 --t 1 --n 10000

	results for 10000 parallel executions, 1 ms per I/O op

	file time(ms) memory(MB)
	callbacks-baseline 624 82.00
	callbacks-suguru03-neo-async-parallel 719 88.20
	promises-bluebird 1037 105.51
	promises-lvivski-davy 1099 156.89
	callbacks-caolan-async-parallel 1141 116.48
	promises-bluebird-generator 1198 106.91
	promises-cujojs-when 1391 157.09
	promises-ecmascript6-native 2280 212.14
	generators-tj-co 2289 225.09
	promises-native-async-await 2346 218.36
	promises-then-promise 2358 235.82
	promises-calvinmetcalf-lie 2927 330.71
	promises-tildeio-rsvp 3006 315.84
	promises-medikoo-deferred 3859 356.98
	promises-dfilatov-vow 5261 476.34
	promises-obvious-kew 5971 657.50
	streamline-generators 14209 857.03
	streamline-callbacks 20183 1066.83

	Platform info:
	Linux 5.13.0-40-generic x64
	Node.JS 16.14.0
	V8 9.4.146.24-node.20
	Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz × 4