public void GetCopressionRatioOfFileFilledWith_0_OfAround_200K_GZIP_Test()
{
int length = 8 * 1024 * 200; //around 200k bits
int max = 1000;
var dynamicAverage = new BlockingDoubleAverage();
int count = 0;
Parallel.For(0, max, i =>
{
Interlocked.Increment(ref count);
string fName = String.Concat(r.Next(), "tmp.bin");
var bitArray = new BitArray(length, false);
binaryFileWriter.Write(fName, FileMode.OpenOrCreate, bitArray.ToByteArray());
double value = GzipStreamHelper.Compress(fName);
dynamicAverage.Add(value);
if (count % 100 == 0)
{
Trace.WriteLine("Processed: " + count);
}
File.Delete(fName);
});
double result = dynamicAverage.GetCurrentAverage();
Trace.WriteLine("Compressed: " + max + "files");
Trace.WriteLine("Lenght of binary data: " + length);
Trace.WriteLine("Average compression: " + result);
}
public double CalculateAveragedCompressionRate <T>(IEnumerable <T> data, int iterations, CompressionType type)
{
var average = new BlockingDoubleAverage();
for (int i = 0; i < iterations; i++)
{
string fName = "temp.txt";
double rate = GetCompressionRate <T>(fName, data, type);
average.Add(rate);
File.Delete(fName);
}
return(average.GetCurrentAverage());
}