scala.testing

trait Benchmark

[source: scala/testing/Benchmark.scala]

trait Benchmark
extends AnyRef

Benchmark can be used to quickly turn an existing class into a benchmark. Here is a short example:

  object sort1 extends Sorter with Benchmark {
    def run = sort(List.range(1, 1000))
  }
  

The run method has to be defined by the user, who will perform the timed operation there. Run the benchmark as follows:

  > scala sort1 5 times.log
  

This will run the benchmark 5 times and log the execution times in a file called times.log

Author
Iulian Dragos, Burak Emir
Value Summary
var multiplier : Int
Method Summary
def main (args : Array[String]) : Unit
The entry point. It takes two arguments (n), (name) and an optional argument multiplier (mult). (n) is the number of consecutive runs, (name) the name of a log file where to append the times. if (mult) is present, the same thing is repeated (mult) times.
def prefix : String
a string that is written at the beginning of the output line that contains the timings. By default, this is the class name.
abstract def run : Unit
this method should be implemented by the concrete benchmark
def runBenchmark (noTimes : Int) : List[Long]
Run the benchmark the specified number of times and return a list with the execution times in milliseconds in reverse order of the execution
Methods inherited from AnyRef
getClass, hashCode, equals, clone, toString, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized
Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf
Value Details
var multiplier : Int

Method Details
abstract def run : Unit
this method should be implemented by the concrete benchmark

def runBenchmark(noTimes : Int) : List[Long]
Run the benchmark the specified number of times and return a list with the execution times in milliseconds in reverse order of the execution
Parameters
noTimes - ...
Returns
...

def prefix : String
a string that is written at the beginning of the output line that contains the timings. By default, this is the class name.

def main(args : Array[String]) : Unit
The entry point. It takes two arguments (n), (name) and an optional argument multiplier (mult). (n) is the number of consecutive runs, (name) the name of a log file where to append the times. if (mult) is present, the same thing is repeated (mult) times.