bench-utils

Usage

var bench = require('bench-utils');

// Counter
var counter = new bench.Counter('loopCounter');
counter.start();
for (var i = 0; i < 100; ++i) {
  counter.incr();
}
counter.stop();

// Stopwatch
var stopwatch = new bench.Stopwatch('loopDuration');
stopwatch.start();
for (var i = 0; i < 100; ++i)
  ;
stopwatch.stop();

// Timestampable
var timestampable = new bench.Timestampable('rpcN');
timestampable.timestamp('received');
timestampable.timestamp('processed');
timestampable.timestamp('replied');

bench.print();

Output:

[C loopCounter value=100 elapsed=0.102041ms]
[S loopDuration cycles=1 elapsed=0.056351ms]
[T rpcN received=0ms processed=0.02386ms replied=0.028968ms]

API

bench.counters

bench.stopwatches

bench.timestampables

Use the instances collection to ease your application from passing them around.

bench.counters.loopCounter.incr();
bench.counters['loopCounter'].incr();

bench.print([regexp])

Output the matched instances toString to console.

Counter(name)

counter.decr([value])

counter.incr([value])

Default value is 1.

counter.start()

counter.stop()

Use start/stop in case you want to record how long the counter is couting. decr/incr still works even start is not called.

counter.reset()

counter.toString()

Stopwatch(name)

stopwatch.start()

stopwatch.stop()

The stopwatch has cumulative elapsed time from each start/stop cycle.

stopwatch.reset()

stopwatch.toString()

Timestampable(name)

timestampable.timestamp(event)

timestampable.reset()

timestampable.toString()

The output list time differences from each event to the first one.