private static RunResult Test(string name, IDictionary dict, int n)
{
Console.Clear();
Msg("Currently executing test {1} of {2} for {0} object",
name, n + 1, NUMBER_TESTS);
var rr = new RunResult();
Stopwatch watch;
var rand = new Random();
var memoryStart = GC.GetTotalMemory(true);
long insertTicksSum = 0;
for (var i = 0; i < NUMBER_INSERTED_KEYS; i++)
{
var key = GetRandomLetter(rand, i) + "_key" + i;
var value = "value" + i;
watch = Stopwatch.StartNew();
dict.Add(key, value);
watch.Stop();
insertTicksSum += watch.ElapsedTicks;
}
rr.MemoryUsed = GC.GetTotalMemory(true) - memoryStart;
rr.InsertTicks = insertTicksSum;
watch = Stopwatch.StartNew();
object searchResult = dict["C_key" + _searchIndex];
watch.Stop();
rr.SearchTicks = watch.ElapsedTicks;
watch = Stopwatch.StartNew();
foreach (var curr in dict) { }
watch.Stop();
rr.ForEachTicks = watch.ElapsedTicks;
return rr;
}
public static void Main(string[] args)
{
try
{
// TRY STARTS HERE ----------
var listDictionary = new List<RunResult>();
var listSortedDictionary = new List<RunResult>();
var listHashtable = new List<RunResult>();
var listSorderList = new List<RunResult>();
var watch = Stopwatch.StartNew();
for (var i = 0; i < NUMBER_TESTS; i++)
{
_searchIndex += 1;
var rand = new Random();
var randInt = rand.Next(0, 4);
switch (randInt)
{
case 0:
listDictionary.Add(
Test("Dictionary", new Dictionary<string, string>(), i));
break;
case 1:
listSortedDictionary.Add(
Test("SortedDictionary",
new SortedDictionary<string, string>(), i));
break;
case 2:
listHashtable.Add(
Test("Hashtable", new Hashtable(), i));
break;
case 3:
listSorderList.Add(
Test("SortedList", new SortedList(), i));
break;
}
}
Console.Clear();
Msg("Time taken (minutes): {0} or about {1} minutes and {2} seconds",
watch.Elapsed.TotalMinutes,
watch.Elapsed.Minutes,
watch.Elapsed.Seconds);
var resultDict = CalculateAvg(listDictionary);
var resultSortDict = CalculateAvg(listSortedDictionary);
var resultHash = CalculateAvg(listHashtable);
var resultSortList = CalculateAvg(listSorderList);
var min =
new RunResult
{
MemoryUsed = Math.Min(Math.Min(Math.Min(resultDict.MemoryUsed, resultSortDict.MemoryUsed), resultHash.MemoryUsed), resultSortList.MemoryUsed),
InsertTicks = Math.Min(Math.Min(Math.Min(resultDict.InsertTicks, resultSortDict.InsertTicks), resultHash.InsertTicks), resultSortList.InsertTicks),
SearchTicks = Math.Min(Math.Min(Math.Min(resultDict.SearchTicks, resultSortDict.SearchTicks), resultHash.SearchTicks), resultSortList.SearchTicks),
ForEachTicks = Math.Min(Math.Min(Math.Min(resultDict.ForEachTicks, resultSortDict.ForEachTicks), resultHash.ForEachTicks), resultSortList.ForEachTicks)
};
PrintResults(resultDict, listDictionary.Count, min, "Dictionary");
PrintResults(resultSortDict, listDictionary.Count, min, "SortedDictionary");
PrintResults(resultHash, listDictionary.Count, min, "Hashtable");
PrintResults(resultSortList, listDictionary.Count, min, "SortedList");
}
catch (Exception ex)
{
Msg("{0}", ex);
}
}
private static void PrintResults(RunResult result, int count, RunResult min, string name)
{
Msg("--------- Results for {0}", name);
Msg("# Tests {0}", count);
Msg("Memory Used Insert Ticks Search Ticks ForEach Ticks");
Msg("Average Values:");
Msg("{0,11:N} {1,13:N} {2,14:N} {3,14:N}",
result.MemoryUsed,
result.InsertTicks,
result.SearchTicks,
result.ForEachTicks);
Msg("Performance Coefficient:");
Msg("{0,11:N} {1,13:N} {2,14:N} {3,14:N}",
min.MemoryUsed / result.MemoryUsed,
min.InsertTicks / result.InsertTicks,
min.SearchTicks / result.SearchTicks,
min.ForEachTicks / result.ForEachTicks);
Msg("");
}
