コード例 #1
0
        public static void TestRandomIteratorUsafeXorshift()
        {
            int randomValue = 0;


            Console.WriteLine("Test Random generator Iterator Unsafe Xor Shift En Pointer: ");
            dh.StartWatch();
            RandomIteratorUsafeXorshiftEn randomIteratorUsafeEn = new RandomIteratorUsafeXorshiftEn(1024 * 1024);
            ulong n = (ulong)20 * (ulong)1024 * (ulong)1024 * (ulong)1024;

            for (ulong i = n; i != 0; i--)
            {
                randomValue = randomIteratorUsafeEn.bNextPointer();
            }
            dh.StoptWatch();
            Console.WriteLine(dh.GetMessage());

            Console.WriteLine("Test Random generator Iterator Unsafe Xor Shift En: ");
            dh.StartWatch();
            RandomIteratorUsafeXorshift randomIteratorUnsafe = new RandomIteratorUsafeXorshift(1024 * 1024);

            n = (ulong)20 * (ulong)1024 * (ulong)1024 * (ulong)1024;
            for (ulong i = n; i != 0; i--)
            {
                randomValue = randomIteratorUnsafe.bNext();
            }
            dh.StoptWatch();
            Console.WriteLine(dh.GetMessage());



            Console.WriteLine("Test Random generator Iterator Unsafe Xor Shift En: ");
            randomIteratorUsafeEn = new RandomIteratorUsafeXorshiftEn(1024 * 1024);
            n = (ulong)1024 * (ulong)1024 * (ulong)1024 * (ulong)1024;

            Console.WriteLine("i++");
            dh.StartWatch();

            for (ulong i = 0; i < n; i++)
            {
            }
            dh.StoptWatch();
            Console.WriteLine(dh.GetMessage());

            Console.WriteLine("--i");
            dh.StartWatch();

            for (ulong i = n; i != 0; --i)
            {
            }
            dh.StoptWatch();
            Console.WriteLine(dh.GetMessage());

            Console.WriteLine("i--");
            dh.StartWatch();

            for (ulong i = n; i != 0; i--)
            {
            }
            dh.StoptWatch();
            Console.WriteLine(dh.GetMessage());

            Console.WriteLine("++i");
            dh.StartWatch();


            for (ulong i = 0; i < n; ++i)
            {
            }
            dh.StoptWatch();
            Console.WriteLine(dh.GetMessage());
        }
        unsafe public static void TestArrayWithDictionaryPinnedArrayFaterRandomIterator(int maxLengthCh = 512 * 1024 * 1024, int iteration = 200)
        {
            int maxLengthCh2 = (int)maxLengthCh << 1;

            Console.WriteLine("Test char array with dictionary and faster random iterator :");
            char[] buffer = new char[maxLengthCh];
            RandomIteratorUsafeXorshift rnd = new RandomIteratorUsafeXorshift(256);
            GCHandle gchbuffers             = GCHandle.Alloc(buffer, GCHandleType.Pinned);
            IntPtr   addrBuffer             = Marshal.UnsafeAddrOfPinnedArrayElement(buffer, (int)maxLengthCh - 1);
            char *   pBuffer        = (char *)addrBuffer.ToPointer();
            char *   pCurrentBuffer = pBuffer;
            char *   pBufferStart   = (char *)Marshal.UnsafeAddrOfPinnedArrayElement(buffer, 0);

            char[][] templateCh = { " apple".ToCharArray(), " town".ToCharArray(), " array".ToCharArray(), " summer".ToCharArray(), " winter".ToCharArray(), " april".ToCharArray(), " customer".ToCharArray(), " support".ToCharArray(), " laptop".ToCharArray(), " cross-domain".ToCharArray() };

            int n = templateCh.Length;

            //GCHandle.Alloc(templateCh, GCHandleType.Pinned);
            GCHandle[] lines = new GCHandle[n];
            //GCHandle gchLines = GCHandle.Alloc(lines, GCHandleType.Pinned);
            char *[] pLines = new char *[n];
            //GCHandle gchpLines = GCHandle.Alloc(pLines, GCHandleType.Pinned);
            IntPtr[] linesPtr = new IntPtr[n];
            //GCHandle gchlinesPtr = GCHandle.Alloc(linesPtr, GCHandleType.Pinned);
            for (int i = 0; i < n; i++)
            {
                lines[i]    = GCHandle.Alloc(templateCh[i], GCHandleType.Pinned);
                linesPtr[i] = Marshal.UnsafeAddrOfPinnedArrayElement(templateCh[i], 0);
                pLines[i]   = (char *)linesPtr[i].ToPointer();
            }
            int[]    sizes     = new int[n];
            GCHandle gchsizes  = GCHandle.Alloc(sizes, GCHandleType.Pinned);
            IntPtr   addrSizes = Marshal.UnsafeAddrOfPinnedArrayElement(sizes, 0);
            int *    pSize     = (int *)addrSizes.ToPointer();

            int[]    sizes2     = new int[n];
            GCHandle gchsizes2  = GCHandle.Alloc(sizes2, GCHandleType.Pinned);
            IntPtr   addrSizes2 = Marshal.UnsafeAddrOfPinnedArrayElement(sizes2, 0);
            int *    pSizes2    = (int *)addrSizes2.ToPointer();

            int sizeTmp = 0;

            for (int i = 0; i < n; i++)
            {
                sizeTmp   = templateCh[i].Length;
                sizes[i]  = sizeTmp;
                sizes2[i] = sizeTmp << 1;
            }

            int[] randomizeDictionary      = new int[256 * 256];
            int[] randomizeDictionarySize  = new int[256 * 256];
            int[] randomizeDictionarySize2 = new int[256 * 256];

            int k = 0;

            for (int j = 0; j < 256 * 256; j++)
            {
                randomizeDictionary[j] = k;
                k++;
                if (k == n)
                {
                    k = 0;
                }
            }
            k = 0;
            for (int j = 0; j < 256 * 256; j++)
            {
                randomizeDictionarySize[j] = (int)sizes[k];
                k++;
                if (k == n)
                {
                    k = 0;
                }
            }
            k = 0;
            for (int j = 0; j < 256 * 256; j++)
            {
                randomizeDictionarySize2[j] = (int)sizes2[k];
                k++;
                if (k == n)
                {
                    k = 0;
                }
            }
            //dh.StartWatch();
            int position          = maxLengthCh;
            int position2         = maxLengthCh << 2;
            int templateLenghtCh  = (int)templateCh.Length;
            int templateLenghtCh2 = (int)templateCh.Length << 1;
            int randomIndex       = 0;

            char[]   endline    = Environment.NewLine.ToCharArray();
            GCHandle gchendline = GCHandle.Alloc(endline, GCHandleType.Pinned);

            char[] dot = new char[1] {
                '.'
            };
            GCHandle gchdot = GCHandle.Alloc(endline, GCHandleType.Pinned);

            byte[] rndInt = new byte[4] {
                rnd.bNext(), rnd.bNext(), rnd.bNext(), rnd.bNext()
            };
            GCHandle gchrndInt    = GCHandle.Alloc(endline, GCHandleType.Pinned);
            byte     rndIntIndex  = 0;
            int      minStrLength = 0;
            byte     wordCount    = 0;

            fixed(int *psize = randomizeDictionarySize, psize2 = randomizeDictionarySize2, pdic = randomizeDictionary)
            {
                for (int i = 0; i < iteration; i++)
                {
                    position2 = maxLengthCh2;


                    //position = maxLengthCh - templateLenghtCh;
                    AddEndLine();
                    while (position2 >= minStrLength)
                    {
                        wordCount = (byte)((rnd.bNext() >> 5));
                        wordCount++;
                        if (AddNewLine(psize, psize2, pdic, wordCount))
                        {
                            AddNumber();
                            AddEndLine();
                        }
                    }

                    /*
                     * if(position2 < 0)
                     * {
                     *  pCurrentBuffer = pCurrentBuffer + templateLenghtCh - 1 ;
                     *  while(pCurrentBuffer >= pBufferStart)
                     *  {
                     * pCurrentBuffer = '*';
                     *      pCurrentBuffer--;
                     *  }
                     * }*/
                }
            }

            //dh.StoptWatch();
            templateCh = null;
            buffer     = null;
            templateCh = null;
            sizes      = null;
            sizes2     = null;
            if (gchrndInt.IsAllocated)
            {
                gchrndInt.Free();
            }
            if (gchdot.IsAllocated)
            {
                gchdot.Free();
            }
            if (gchendline.IsAllocated)
            {
                gchendline.Free();
            }

            if (gchsizes2.IsAllocated)
            {
                gchsizes2.Free();
            }

            if (gchsizes.IsAllocated)
            {
                gchsizes.Free();
            }

            if (gchbuffers.IsAllocated)
            {
                gchbuffers.Free();/*
                                   * if (gchLines.IsAllocated)
                                   * gchLines.Free();*//*
                                   * if (gchpLines.IsAllocated)
                                   * gchpLines.Free();*//*
                                   * if (gchlinesPtr.IsAllocated)
                                   * gchlinesPtr.Free();*/
            }

            for (int i = 0; i < n; i++)
            {
                if (lines[i].IsAllocated)
                {
                    lines[i].Free();
                }
            }
            GarbachCollectorHelper.GBForceRun();
            //Console.WriteLine(dh.GetMessage());
            return;

            unsafe bool AddNewLine(int *psize, int *psize2, int *pdic, byte count)
            {
                byte counter = 0;

                randomIndex = (rnd.bNext() << 8) + rnd.bNext();//--rnd1.Next(n);
                //

                templateLenghtCh2 = *(psize2 + randomIndex);
                position2        -= templateLenghtCh2;
                while (position2 >= minStrLength)
                {
                    Buffer.BlockCopy(templateCh[*(pdic + randomIndex)], 0, buffer, position2, templateLenghtCh2);
                    counter++;
                    if (counter >= count)
                    {
                        return(true);
                    }
                    else
                    {
                        templateLenghtCh2 = *(psize2 + randomIndex);
                        position2        -= templateLenghtCh2;
                    }
                }
                return(false);
            }

            bool AddEndLine()
            {
                if (position2 > 6)
                {
                    position2 -= 4;
                    Buffer.BlockCopy(endline, 0, buffer, position2, 4);
                    return(true);
                }

                return(false);
            }

            /*
             * bool AddNumber()
             * {
             *  uint rndNumber = BitConverter.ToUInt32(rndInt, 0);
             *  if (rndNumber == 0)
             *  {
             *      rndNumber++;
             *  }
             *  byte shift = rnd.bNext();
             *  rndInt[rndIntIndex] = shift;
             *  rndIntIndex++;
             *  if(rndIntIndex>=4)
             *  {
             *      rndIntIndex = 0;
             *  }
             *  for(int i = 0; i < 4; i++)
             *  {
             *      rndInt[i] = (byte) (rndInt[i] & shift);
             *  }
             *  char[] strNumber = rndNumber.ToString().ToCharArray();
             *  int length2 = strNumber.Length << 1;
             *  if (position2 > length2)
             *  {
             *      position2 -= 2;
             *      Buffer.BlockCopy(dot, 0, buffer, position2, 2);
             *      position2 -= length2;
             *      Buffer.BlockCopy(strNumber, 0, buffer, position2, length2);
             *
             *      return true;
             *  }
             *
             *  return false;
             * }
             */

            bool AddNumber()
            {
                int rndNumber = rnd.Next();

                ;
                char[] strNumber = rndNumber.ToString().ToCharArray();
                int    length2   = strNumber.Length << 1;

                if (position2 > length2)
                {
                    position2 -= 2;
                    Buffer.BlockCopy(dot, 0, buffer, position2, 2);
                    position2 -= length2;
                    Buffer.BlockCopy(strNumber, 0, buffer, position2, length2);

                    return(true);
                }

                return(false);
            }
        }
    }