static int MeasureTupleVsKeyValuePairInDictionaryLookup()
{
const int iterations = 1000000;
int ran = 0;
var tupleMap = new DictionaryEx <Tuple <int, int, int, DateTime>, int>(200);
var structMap = new DictionaryEx <StructTuple <int, int, int, DateTime>, int>(200);
for (int i = 200 - 1; i >= 0; i--)
{
tupleMap.Add(new Tuple <int, int, int, DateTime>(400 - i, i + 1, i - 1, new DateTime(1990 + i % 10, 5, 2)), 0);
structMap.Add(new StructTuple <int, int, int, DateTime>(400 - i, i + 1, i - 1, new DateTime(1990 + i % 10, 5, 2)), 0);
}
//CodeTimer.Time(true, "Tuple lookup",
// iterations,
// () =>
// {
// int value;
// if (tupleMap.TryGetValue(new Tuple<int, int, int, DateTime>(390, 11, 9, new DateTime(1990, 5, 2)), out value))
// ran += 1;
// });
CodeTimer.Time(true, "Struct lookup outer add or update",
iterations,
() =>
{
var key = new StructTuple <int, int, int, DateTime>(390, 11, 9, new DateTime(1990, 5, 2));
int a = 1;
int value;
if (structMap.TryGetValue(key, out value))
{
structMap[key] = value + a;
}
else
{
structMap.Add(key, a);
}
ran += 1;
});
CodeTimer.Time(true, "Struct lookup AddOrUpdate",
iterations,
() =>
{
int a = 1;
structMap.AddOrUpdate(
new StructTuple <int, int, int, DateTime>(390, 11, 9, new DateTime(1990, 5, 2)),
a,
(k, cv, nv) => cv + nv);
ran += 1;
});
return(ran);
}
static long MeasureStringBuilderVsStringFormat()
{
const int iterations = 1000000;
long ran = 0;
int a = 1, b = -1;
var x = new StructTuple <int, int, int>(100, 102, 300);
CodeTimer.Time(
true,
"string.Format()",
iterations,
() => { ran += string.Format("daily/{0}/apis/{1}/operations/{2}/test", x.First, x.Second, x.Third).Length; });
CodeTimer.Time(
true,
"string.Format with explicit .ToString()",
iterations,
() =>
{
ran +=
string.Format("daily/{0}/apis/{1}/operations/{2}/test", x.First.ToString(CultureInfo.InvariantCulture), x.Second.ToString(CultureInfo.InvariantCulture), x.Third.ToString(CultureInfo.InvariantCulture))
.Length;
});
CodeTimer.Time(
true,
"StringBuilder",
iterations,
() =>
{
StringBuilder sb = new StringBuilder()
.Append("daily/")
.Append(x.First)
.Append("/apis/")
.Append(x.Second)
.Append("/operations/")
.Append(x.Third)
.Append("/test");
ran += sb.ToString().Length;
});
Console.WriteLine(ran);
return(ran);
}
