C＃线程Parallel.ForEach和DirectoryInfo内存不足异常

Question

I have a very simply Parallel.ForEach that calls the code below:

var maxDegree = new ParallelOptions{MaxDegreeOfParallelism = 5};
Parallel.ForEach(PList,maxDegree,fl =>
            {
                ProjectDirectoryProcessing pjp = new ProjectDirectoryProcessing();
                pjp.ProjectProcessor(fl);
                Console.ReadLine();
            }
        );

public class ProjectDirectoryProcessing
{

    public void ProjectProcessor(string rootDirectory)
    {
           DirectoryInfo Dinfo = new DirectoryInfo(rootDirectory);
            DirectoryInfo[] directories = Dinfo.GetDirectories("*.*", SearchOption.AllDirectories);
            FileInfo[] finfo = Dinfo.GetFiles("*.*", SearchOption.AllDirectories);
            foreach (FileInfo f in finfo)
            {
                FileSize = FileSize + f.Length;
            }
            FileCount = finfo.Length;
            DirectoryCount = directories.Length;
    }
}

The problem is I run out of memory, I thought about GC.Collect() after the pjp.ProjectProcessor in the Parallel.ForEach but I'm not sure if this will work. The directories are extremely large and I'm not positive that cleaning those up will help all that much. What would be a good way to handle this?

Answer 1

Calling GC manually won't help as GC should be automatically called before throwing an OutOfMemoryException. One easy solution could be to compile the application as x64. Is this an option?