Vector Benchmark

Code to Run

def test(collectionSize: Int) {
  println("\"Vector (size " + collectionSize + "), test results:\"\n")

  import scalqa.Stream.Enable._

  class Foo(val id: Int) { def even = id % 2 == 0 }
  class Bar(val foo: Foo)

  val vector: Vector[Bar] = (1 to collectionSize).map(i => new Bar(new Foo(i))).toVector

  scalqa.Util.Benchmark(
    ("Vector          ", () => vector    .filter(_.foo.even).flatMap(_ => vector).map(_.foo).count(_.even)),
    ("Vector as Stream", () => vector.all.filter(_.foo.even).flatMap(_ => vector).map(_.foo).count(_.even)))
}

Results to Expect

"Vector (size 10), test results:"

Num Name             Ops/Sec %   Memory %   Control Value Avg
--- ---------------- ------- --- ------ --- -----------------
1   Vector           539.6k  33  1.9k   100 25
2   Vector as Stream 1.6m    100 386    19  25

"Vector (size 100), test results:"

Num Name             Ops/Sec %   Memory %   Control Value Avg
--- ---------------- ------- --- ------ --- -----------------
1   Vector           8.8k    42  36.6k  100 2500
2   Vector as Stream 21.0k   100 5.8k   15  2500

"Vector (size 1000), test results:"

Num Name             Ops/Sec %   Memory %   Control Value Avg
--- ---------------- ------- --- ------ --- -----------------
1   Vector           94      45  1.9m   100 250000
2   Vector as Stream 208     100 17.8k  0   250000

Specialized Test

Code to Run

def specializedTest(collectionSize: Int) {
  println("\"Vector (size " + collectionSize + "), specialized test results:\"\n")

  import scalqa.Stream.Enable._

  val vector: Vector[Int] = (1 to collectionSize).toVector

  scalqa.Util.Benchmark(
    ("Vector          ", () => vector    .filter(_ % 2 == 0).flatMap(_ => vector).map(_ / 2L).sum),
    ("Vector as Stream", () => vector.all.filter(_ % 2 == 0).flatMap(_ => vector).map(_ / 2L).sum))
}

Results to Expect

"Vector (size 10), specialized test results:"

Num Name             Ops/Sec %   Memory %   Control Value Avg
--- ---------------- ------- --- ------ --- -----------------
1   Vector           412.1k  28  1.6k   100 125
2   Vector as Stream 1.4m    100 412    24  125

"Vector (size 100), specialized test results:"

Num Name             Ops/Sec %   Memory %   Control Value Avg
--- ---------------- ------- --- ------ --- -----------------
1   Vector           5.2k    23  149.4k 100 125000
2   Vector as Stream 22.0k   100 5.1k   3   125000

"Vector (size 1000), specialized test results:"

Num Name             Ops/Sec %   Memory %   Control Value Avg
--- ---------------- ------- --- ------ --- -----------------
1   Vector           47      21  7.4m   100 125000000
2   Vector as Stream 217     100 0      0   125000000

Vector Benchmark 

Specialized Test

Vector Benchmark