//
//
//
static void Main(string[] args)
{
Console.OutputEncoding = System.Text.Encoding.UTF8;
Console.WriteLine(String.Format("MultipleKeys.Multi.sample, {0}", (IntPtr.Size == 4) ? "32 bit" : "64 bit"));
Console.WriteLine("----------------------------------");
int max = 36000;
string[] aCity = { "London", "Moscow", "Warsaw", "Berlin", "Paris", "Prague", "Brussels", "Vienna", "Zagreb", "Helsinki" };
int iPocetAdd = 0;
Random r = new Random((int)DateTime.Now.Ticks);
uint[] aRand = new uint[max];
var hashSetRand = new HashSet <uint>();
while (iPocetAdd < max)
{
uint rand = (uint)r.Next(0, Int32.MaxValue - 1);
if (hashSetRand.Contains(rand) == false)
{
hashSetRand.Add(rand);
aRand[iPocetAdd] = rand;
iPocetAdd++;
}
}
hashSetRand = null;
long iMem = GC.GetTotalMemory(true);
Console.WriteLine("UsedMemory {0,4} MB", iMem >> 20);
long iMemOld = iMem;
//
//
iPocetAdd = 0;
Console.WriteLine("----------------------------------");
Console.WriteLine("FcsFastBTreeN");
TestKV btnTest = new TestKV();
var swFcsKV = Stopwatch.StartNew();
for (int iter = 0; iter < 100; iter++)
{
for (int idx = 0; idx < max; idx++)
{
BtnKey key;
key.keyCity = aCity[idx % aCity.Length];
key.keyId = idx % 1200;
BtnValue value;
value.count = 1;
if (idx % 50 == 12)
{
value.aRand = null;
}
else
{
value.aRand = new uint[1];
value.aRand[0] = aRand[idx];
}
if (idx % 60 == 12)
{
value.aDateTime = null;
}
else
{
value.aDateTime = new DateTime[1];
value.aDateTime[0] = DateTime.Now;
}
if (btnTest.BtnAdd(key, ref value, null) != null)
{
iPocetAdd++;
}
}
}
swFcsKV.Stop();
iMem = GC.GetTotalMemory(true);
Console.WriteLine("UsedMemory {0,5} MB [{1,5:N1} s] | {3} keys | Δ {2,3} MB | {4,8:N0} ns | {5,10:N0} values", iMem >> 20, swFcsKV.Elapsed.TotalSeconds, (iMem - iMemOld) >> 20,
btnTest.BtnUsedKeys(), ((double)(swFcsKV.Elapsed.TotalMilliseconds * 1000000) / iPocetAdd), btnTest.BtnUsedValues());
iMemOld = iMem;
int iCompareCount = 0;
swFcsKV.Restart();
foreach (KeyValuePair <BtnKey, BtnValue>?value in btnTest)
{
iCompareCount++;
}
swFcsKV.Stop();
Console.WriteLine("\nFcsFastBTreeN - foreach()");
Console.WriteLine($"{((double)(swFcsKV.Elapsed.TotalMilliseconds * 1000000) / iCompareCount),9:N2} ns [{swFcsKV.Elapsed.TotalMilliseconds,11} ms | {iCompareCount} keys ]{iCompareCount / swFcsKV.Elapsed.TotalSeconds,20:N0} IOPS");
iCompareCount = 0;
FcsBTreeN <BtnKey, BtnValue> .BtnEnumerator btnEn = btnTest.GetEnumeratorEx(false);
swFcsKV.Restart();
while (btnEn.MoveNext())
{
KeyValuePair <BtnKey, BtnValue>?value = btnEn.Current;
iCompareCount++;
}
swFcsKV.Stop();
Console.WriteLine("\nFcsBTreeN - foreach()");
Console.WriteLine($"{((double)(swFcsKV.Elapsed.TotalMilliseconds * 1000000) / iCompareCount),9:N2} ns [{swFcsKV.Elapsed.TotalMilliseconds,11} ms | {iCompareCount} keys ]{iCompareCount / swFcsKV.Elapsed.TotalSeconds,20:N0} IOPS");
iCompareCount = 0;
swFcsKV.Restart();
if (btnTest.BtnFastFirst(out BtnKey fcsKey2, out BtnValue fcsValue2, 2) != null)
{
iCompareCount++;
while (btnTest.BtnFastNext(ref fcsKey2, out fcsValue2, 2) != null)
{
iCompareCount++;
}
}
swFcsKV.Stop();
Console.WriteLine("\nFcsFastBTreeN - BtnFastFirst()/BtnFastNext()");
Console.WriteLine($"{((double)(swFcsKV.Elapsed.TotalMilliseconds * 1000000) / iCompareCount),9:N2} ns [{swFcsKV.Elapsed.TotalMilliseconds,11} ms | {iCompareCount} keys ]{iCompareCount / swFcsKV.Elapsed.TotalSeconds,20:N0} IOPS");
//
//
Console.WriteLine("----------------------------------");
Console.WriteLine("Key ENTER press.");
Console.ReadLine();
}