private UInt64[] DecompressMany(String value, Int32 count)
{
var input = new MemoryStream(BitOperation.ParseToBytes(value));
var codec = new FibonacciCodec();
var output = codec.DecompressUnsigned(input, count);
return(output.ToArray());
}
public void Compress_OutputPerfectSize()
{
var input = new UInt64[] { 0, 1, 2 };
var output = new MemoryStream(2);
var codec = new FibonacciCodec();
codec.CompressUnsigned(output, input);
Assert.AreEqual("11011001 10000000", output.ToArray().ToBinaryString());
Assert.AreEqual(3, input.Length);
}
static void Main(String[] args)
{
// Instantiate the codec ready to compress
Codec codec = new FibonacciCodec();
// Compress data - 3x8 bytes = 24bytes uncompressed
var compressed = codec.CompressSigned(new Int64[] { 1, 2, 3 });
Console.WriteLine("Compressed data is " + compressed.Length + " bytes"); // Output: Compressed data is 2 bytes
// Decompress data
var decompressed = codec.DecompressSigned(compressed, 3);
Console.WriteLine(String.Join(",", decompressed)); // Output: 1,2,3
Console.WriteLine("Done.");
Console.ReadKey(true);
}
static void Main(String[] args)
{
//#1
// Write: 7865ms 9.7MB/s
// Read: 17392ms 4.39MB / s
// ASync Read: 2935ms 25.99MB / s
// #2
// Write: 14,115ms 5.41MB/s
// Read: 6,226ms 12.25MB/s
// #3
// Compress: 11801ms 6.47MB / s
// Decompress: 6967ms 10.95MB / s
// #4
// Compress: 10291ms 7.41MB/s
// Decompress: 5819ms 13.11MB / s
// #5
// FIBONACCI
// Compress: 5986ms 12.75MB / s Total 38MB
// Decompress: 3455ms 22.08MB / s
// VLQ
// Compress: 386ms 197.65MB / s Total 36MB
// Decompress: 874ms 87.29MB / s
Int32 min = 100000;
Int32 count = 10000000;
// Seed
var input = new List <UInt64>((Int32)count);
for (var v = min; v < min + count; v++)
{
input.Add((UInt64)v);
}
//////////////////////////////////////////
Console.WriteLine("FIBONACCI");
Codec codec = new FibonacciCodec();
var compressed = new MemoryStream((Int32)count * 5);
// Compress
var stopWatch = Stopwatch.StartNew();
codec.CompressUnsigned(compressed, input.ToArray());
stopWatch.Stop();
Console.WriteLine("Compress: " + stopWatch.ElapsedMilliseconds + "ms " + Math.Round((Double)count * 1000 * 8 / 1024 / 1024 / stopWatch.ElapsedMilliseconds, 2) + "MB/s Total " + (compressed.Length / 1024 / 1024) + "MB");
// Rewind
compressed.Position = 0;
// Decompress
stopWatch = Stopwatch.StartNew();
var output = codec.DecompressUnsigned(compressed, input.Count).ToList();
stopWatch.Stop();
Console.WriteLine("Decompress: " + stopWatch.ElapsedMilliseconds + "ms " + Math.Round((Double)count * 1000 * 8 / 1024 / 1024 / stopWatch.ElapsedMilliseconds, 2) + "MB/s");
// Validate
var pos = 0;
for (var v = min; v < min + count; v++)
{
if ((int)output[pos++] != v)
{
throw new Exception("Incorrect result. Expected " + v + " got " + output[v] + ".");
}
}
//////////////////////////////////////////
Console.WriteLine("VLQ");
codec = new VLQCodec();
compressed = new MemoryStream((Int32)count * 5);
// Compress
stopWatch = Stopwatch.StartNew();
codec.CompressUnsigned(compressed, input.ToArray());
stopWatch.Stop();
Console.WriteLine("Compress: " + stopWatch.ElapsedMilliseconds + "ms " + Math.Round((Double)count * 1000 * 8 / 1024 / 1024 / stopWatch.ElapsedMilliseconds, 2) + "MB/s Total " + (compressed.Length / 1024 / 1024) + "MB");
// Rewind
compressed.Position = 0;
// Decompress
stopWatch = Stopwatch.StartNew();
output = codec.DecompressUnsigned(compressed, input.Count).ToList();
stopWatch.Stop();
Console.WriteLine("Decompress: " + stopWatch.ElapsedMilliseconds + "ms " + Math.Round((Double)count * 1000 * 8 / 1024 / 1024 / stopWatch.ElapsedMilliseconds, 2) + "MB/s");
// Validate
pos = 0;
for (var v = min; v < min + count; v++)
{
if ((int)output[pos++] != v)
{
throw new Exception("Incorrect result. Expected " + v + " got " + output[v] + ".");
}
}
Console.WriteLine("\nDone.");
Console.ReadKey(true);
}