a pretty exciting result for parallel D lang rmd following defrag by name

[Jay Norwood]

I was able to achieve similar efficiency to the defrag result on 
ntfs by using a modified version of std.file.write that uses 
FILE_FLAG_WRITE_THROUGH. The ntfs rmdir of the 2GB layout takes 6 
sec vs 161 sec when removing the unzipped layout.  I posted  the 
measurements in D.learn, as well as the modified code.

http://forum.dlang.org/thread/gmkocaqzmlmfbuozhrsj@forum.dlang.org

This has a big effect on processing files in a folder of a hard 
drive, where the operations are dominated by the seek times.