public static void TimingRandom <T>(ITitanicArray <T> arr, IDataIterator <T> iter)
{
string name = "TimingRand " + arr.GetType().Name + "-" + iter.GetType().Name;
var s1 = Stopwatch.StartNew();
WriteRandom(arr, iter);
Debug.WriteLine(name + "\tw=" + s1.ElapsedMilliseconds);
ReadAndTestRandom(arr, iter);
Debug.WriteLine(name + "\tt=" + s1.ElapsedMilliseconds);
}
static void ReadAndTestRandom <T>(ITitanicArray <T> arr, IDataIterator <T> iter)
{
long len = arr.Length;
var seq = LinearFeedbackShiftRegister.SequenceLength(lfsrStart, (ulong)len).GetEnumerator();
iter.Reset();
for (long i = 0; i < len; i++)
{
seq.MoveNext();
long x = (long)seq.Current;
T next = iter.GetNext();
Assert.IsTrue(iter.AreEqual(arr[x], next));
}
}
static void WriteRandom <T>(ITitanicArray <T> arr, IDataIterator <T> iter)
{
long len = arr.Length;
var seq = LinearFeedbackShiftRegister.SequenceLength(lfsrStart, (ulong)len).GetEnumerator();
iter.Reset();
for (long i = 0; i < len; i++)
{
seq.MoveNext();
long x = (long)seq.Current;
T next = iter.GetNext();
arr[x] = next;
}
}
public static void ReadWriteTest <T>(ITitanicArray <T> arr, IDataIterator <T> iter)
{
long len = arr.Length;
iter.Reset();
for (long i = 0; i < len; i++)
{
arr[i] = iter.GetNext();
}
iter.Reset();
for (long i = 0; i < len; i++)
{
Assert.IsTrue(iter.AreEqual(arr[i], iter.GetNext()));
}
}
void SaveDataToFile(ITitanicArray <long> data, string name)
{
using (var fs = File.Open(name, FileMode.Create, FileAccess.ReadWrite, FileShare.Read))
using (var gz = new GZipStream(fs, CompressionLevel.Optimal))
{
WriteHeader(gz);
for (long i = 0; i < data.Length; i++)
{
long item = data[i];
byte[] bs = BitConverter.GetBytes(item);
gz.Write(bs, 0, sizeof(long));
}
}
}
public static void TimingTest <T>(ITitanicArray <T> arr, IDataIterator <T> iter)
{
string name = "TimingTest " + arr.GetType().Name + "-" + iter.GetType().Name;
var s1 = Stopwatch.StartNew();
long len = arr.Length;
iter.Reset();
for (long i = 0; i < len; i++)
{
arr[i] = iter.GetNext();
}
Debug.WriteLine(name + "\tw=" + s1.ElapsedMilliseconds);
iter.Reset();
for (long i = 0; i < len; i++)
{
Assert.IsTrue(iter.AreEqual(arr[i], iter.GetNext()));
}
Debug.WriteLine(name + "\tt=" + s1.ElapsedMilliseconds);
}
public static void ReadWriteRandom <T>(ITitanicArray <T> arr, IDataIterator <T> iter)
{
WriteRandom(arr, iter);
ReadAndTestRandom(arr, iter);
}
