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POperformance of copying directories
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  1. POperformance of copying directories
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    copied!<p>I am using C# to copy files from one directory to another directory. I am using code from msdn but its pretty slow taking a minute or so to copy a couple of gigs. It only takes seconds in explorer. <a href="http://channel9.msdn.com/Forums/TechOff/257490-How-Copy-directories-in-C" rel="nofollow">http://channel9.msdn.com/Forums/TechOff/257490-How-Copy-directories-in-C</a> Surly there a faster way..:)</p> <pre><code> private static void Copy(string sourceDirectory, string targetDirectory) { DirectoryInfo diSource = new DirectoryInfo(sourceDirectory); DirectoryInfo diTarget = new DirectoryInfo(targetDirectory); CopyAll(diSource, diTarget); } private static void CopyAll(DirectoryInfo source, DirectoryInfo target) { // Check if the target directory exists, if not, create it. if (Directory.Exists(target.FullName) == false) { Directory.CreateDirectory(target.FullName); } // Copy each file into it's new directory. foreach (FileInfo fi in source.GetFiles()) { fi.CopyTo(Path.Combine(target.ToString(), fi.Name), true); } // Copy each subdirectory using recursion. foreach (DirectoryInfo diSourceSubDir in source.GetDirectories()) { DirectoryInfo nextTargetSubDir = target.CreateSubdirectory(diSourceSubDir.Name); CopyAll(diSourceSubDir, nextTargetSubDir); } } </code></pre> <hr> <p>Using Parallel I was able to copy 6gigs in under a minute faster than explorer and xcopy. </p> <hr> <pre><code>private static void CopyAll(string SourcePath, string DestinationPath) { string[] directories = System.IO.Directory.GetDirectories(SourcePath, "*.*", SearchOption.AllDirectories); Parallel.ForEach(directories, dirPath =&gt; { Directory.CreateDirectory(dirPath.Replace(SourcePath, DestinationPath)); }); string[] files = System.IO.Directory.GetFiles(SourcePath, "*.*", SearchOption.AllDirectories); Parallel.ForEach(files, newPath =&gt; { File.Copy(newPath, newPath.Replace(SourcePath, DestinationPath)); }); } </code></pre>
 

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