A ListMap apply benchmark. Run with: java -server -cp ...../scala/build/pack/lib/scala-library.jar -Dsize=[sizeOfListMap] -Dnreads=[numberOfCallsToApply] ListMapBench [NumberOfRunsOfTheTest]

apply0-if option small size

-Dsize=120 -Dnreads=1000 ListMapBench 10
ListMapBench$	15	2	2	1	1	0	0	1	1	0
-Dsize=120 -Dnreads=10000 ListMapBench 10
ListMapBench$	17	4	2	3	3	3	3	3	3	3
-Dsize=120 -Dnreads=100000 ListMapBench 10
ListMapBench$	29	15	15	13	15	15	18	17	15	15
-Dsize=120 -Dnreads=1000000 ListMapBench 10
ListMapBench$	123	110	112	113	112	113	109	115	114	114
  -Dsize=120 -Dnreads=1000000 ListMapBench 15
ListMapBench$	124	113	113	115	113	108	114	113	113	113	114	113	113	114	112
 -Dsize=120 -Dnreads=10000000 ListMapBench 15
ListMapBench$	1083	1069	1067	1063	1061	1062	1063	1064	1062	1060	1065	1064	1065	1065	1063

big sizes

-Dsize=100000 -Dnreads=1000 ListMapBench 10

if-> apply0
ListMapBench$	27591	27695	27593	27608	26709	22747	21197	21206	21325	21638
try-catch
ListMapBench$	27433	27606	27615	27573	26640	22152	21173	21097	21101	21337
original
ListMapBench$	27531	28020	28205	28148	26727	22096	21013	21145	20912	20870
ListMapBench$	27772	28653	28336	28466	26698	22588	21850	21813	22053	22134

ListMapBench

import scala.collection.immutable.ListMap


object ListMapBench extends testing.Benchmark {
  val nReads = sys.props("nreads").toInt
  val size = sys.props("size").toInt
  def listMap = ListMap() ++ ((0 until size) map { t => (t,t) })   
  def run = {
    val l = listMap
    var x = 0
    while (x < nReads) {      
      l(x)
      x = x + 1
    }
  }
}

original list map small size

 -Dsize=120 -Dnreads=1000 ListMapBench 10
ListMapBench$	14	3	3	1	1	0	1	0	0	1
 -Dsize=120 -Dnreads=1000 ListMapBench 10
ListMapBench$	13	1	1	1	0	1	1	2	2	2
 -Dsize=120 -Dnreads=10000 ListMapBench 10
ListMapBench$	16	8	4	3	3	2	2	1	1	3
 -Dsize=120 -Dnreads=100000 ListMapBench 10
ListMapBench$	30	18	16	16	14	14	18	16	14	13
 -Dsize=120 -Dnreads=1000000 ListMapBench 10
ListMapBench$	135	124	121	122	120	124	125	124	123	122
 -Dsize=120 -Dnreads=1000000 ListMapBench 15
ListMapBench$	136	122	123	124	123	124	125	125	125	122	124	121	124	123	122
 -Dsize=120 -Dnreads=10000000 ListMapBench 15 
ListMapBench$	1205	1191	1199	1201	1199	1198	1208	1202	1199	1201	1202	1199	1199	1200	1213

try - catch option small size

 -Dsize=120 -Dnreads=1000 ListMapBench 10
ListMapBench$	14	3	2	1	1	1	1	1	0	1
 -Dsize=120 -Dnreads=10000 ListMapBench 10
ListMapBench$	16	8	6	1	3	3	3	3	3	2
 -Dsize=120 -Dnreads=100000 ListMapBench 10
ListMapBench$	30	17	14	16	22	20	16	19	17	14
 -Dsize=120 -Dnreads=1000000 ListMapBench 10
ListMapBench$	136	124	124	125	126	125	124	126	126	126
-Dsize=120 -Dnreads=1000000 ListMapBench 15
ListMapBench$	136	123	124	121	121	125	124	125	124	125	125	124	123	123	124
-Dsize=120 -Dnreads=10000000 ListMapBench 15
ListMapBench$	1196	1184	1216	1200	1201	1210	1197	1202	1206	1203	1199	1198	1201	1203	1199