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FileStream csharp buffer size benchmark test

Joe Scheiman answered on January 5, 2023 Popularity 1/10 Helpfulness 1/10

answer FileStream csharp buffer size benchmark test

FileStream csharp buffer size benchmark test

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Stopwatch sw = new Stopwatch();
        Random rand = new Random();  // seed a random number generator
        int numberOfBytes = 2 << 22; //8,192KB File
        byte nextByte;
        for (int i = 1; i <= 28; i++) //Limited loop to 28 to prevent out of memory
        {
            sw.Start();
            using (FileStream fs = new FileStream(
                String.Format(@"C:\TEMP\TEST{0}.DAT", i),  // name of file
                FileMode.Create,    // create or overwrite existing file
                FileAccess.Write,   // write-only access
                FileShare.None,     // no sharing
                2 << i,             // block transfer of i=18 -> size = 256 KB
                FileOptions.None))  
            {
                for (int j = 0; j < numberOfBytes; j++)
                {
                    nextByte = (byte)(rand.Next() % 256); // generate a random byte
                    fs.WriteByte(nextByte);               // write it
                } 
            }
            sw.Stop();
            Console.WriteLine(String.Format("Buffer is 2 << {0} Elapsed: {1}", i, sw.Elapsed));
            sw.Reset();
        }

Popularity 1/10 Helpfulness 1/10 Language csharp

Source: stackoverflow.com

Tags: buffer c# filestream size

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