diff options
Diffstat (limited to 'core/source/benchmark')
-rwxr-xr-x | core/source/benchmark/scala/com/rockymadden/stringmetric/similarity/OverlapMetricBenchmark.scala | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/core/source/benchmark/scala/com/rockymadden/stringmetric/similarity/OverlapMetricBenchmark.scala b/core/source/benchmark/scala/com/rockymadden/stringmetric/similarity/OverlapMetricBenchmark.scala new file mode 100755 index 0000000..f607aff --- /dev/null +++ b/core/source/benchmark/scala/com/rockymadden/stringmetric/similarity/OverlapMetricBenchmark.scala @@ -0,0 +1,55 @@ +package com.rockymadden.stringmetric.similarity + +import com.google.caliper.Param +import com.rockymadden.stringmetric.{ CaliperBenchmark, CaliperRunner } +import scala.annotation.tailrec +import scala.util.Random + +final class OverlapMetricBenchmark extends CaliperBenchmark { + import OverlapMetricBenchmark.Metric + + @Param(Array("0", "1", "2", "4", "8", "16")) + var length: Int = _ + + var string1: String = _ + var charArray1: Array[Char] = _ + var string2: String = _ + var charArray2: Array[Char] = _ + + override protected def setUp() { + @tailrec + def random(l: Int, ps: String = null): String = + if (l == 0) "" + else { + val s = Random.alphanumeric.take(l).mkString + + if (ps == null || s != ps) s + else random(l, ps) + } + + string1 = random(length) + string2 = random(length, string1) + charArray1 = string1.toCharArray + charArray2 = string2.toCharArray + } + + def timeCompareWithDifferentCharArrays(reps: Int) = run(reps) { + Metric.compare(charArray1, charArray2)(2) + } + + def timeCompareWithDifferentStrings(reps: Int) = run(reps) { + Metric.compare(string1, string2)(2) + } + + def timeCompareWithIdenticalCharArrays(reps: Int) = run(reps) { + Metric.compare(charArray1, charArray1)(2) + } + + def timeCompareWithIdenticalStrings(reps: Int) = run(reps) { + Metric.compare(string1, string1)(2) + } +} + +object OverlapMetricBenchmark extends CaliperRunner(classOf[OverlapMetricBenchmark]) { + private final val Metric = OverlapMetric() +} |