zstd

TestApp1/TestApp1.cpp

 		DKLogD("%s", DKGL_FUNCTION_NAME);
 
 		DKTimer timer;
-		for (auto format : { DKCompressor::Deflate, DKCompressor::LZ4, DKCompressor::LZ4HC })
+		for (auto format : { DKCompressor::Deflate, DKCompressor::Deflate9, DKCompressor::Zstd, DKCompressor::ZstdMax, DKCompressor::LZ4, DKCompressor::LZ4HC })
 		{
 			const char* fmt = [](DKCompressor::Method m) {
 				switch (m)
 				{
-				case DKCompressor::Deflate:	return "DEFLATE";
-				case DKCompressor::LZ4: return "LZ4";
-				case DKCompressor::LZ4HC:	return "LZ4HC";
+				case DKCompressor::Deflate:	    return "DEFLATE";
+                case DKCompressor::Deflate9:    return "DEFLATE(9)";
+                case DKCompressor::Zstd:        return "Zstd";
+                case DKCompressor::ZstdMax:     return "ZstdMax";
+				case DKCompressor::LZ4:         return "LZ4";
+				case DKCompressor::LZ4HC:	    return "LZ4HC";
 				}
 				return "Unknown";
 			}(format);
 			double elapsed = timer.Elapsed();
 
 			if (result)
-				DKLog("File Compressed (%s): %ls -> %ls (%fsec)", fmt,
-				(const wchar_t*)GetFileSizeStr(f1), (const wchar_t*)GetFileSizeStr(f2), elapsed);
+				DKLog("File Compressed (%s): %ls -> %ls (ratio:%f, %fsec)", fmt,
+				(const wchar_t*)GetFileSizeStr(f1), (const wchar_t*)GetFileSizeStr(f2),
+                      double(f1->TotalLength()) / double(f2->TotalLength()), elapsed);
 			else
 			{
 				DKLog("File Compression failed");