![]() NOOFFLOAD : Copy files without using the Windows Copy Offload mechanism. ![]() ![]() Honestly I didn't go further as I got almost the same figures as native linux copy tool and optimizing for several hundrends of milliseconds wasn't my goal. 1 Answer Sorted by: 12 Can I add any options to increase the performance of the robocopy command The following options will change the performance of robocopy: /J : Copy using unbuffered I/O (recommended for large files). If one want to optimize further I would suggest to do a single fstat for src and reuse the values. This code runs a little bit slower than native linux "cp -rf".Ĭomparing to shutil the gain for the local storage to tmfps is around 2x-3x and around than 6x for NFS to local storage.Īfter profiling I've noticed that py does lots of fstat syscals which are pretty heavyweight. The Fast File Copy software opens up a window that segregates into two sections, thus making it easier to select the source and destination folder for file transfer. WRITE_FLAGS = os.O_WRONLY | os.O_CREAT | os.O_TRUNC | O_BINARYįout = os.open(dst, WRITE_FLAGS, stat.st_mode)įor x in iter(lambda: os.read(fin, BUFFER_SIZE), ""):ĭef copytree(src, dst, symlinks=False, ignore=):Ĭopytree(srcname, dstname, symlinks, ignore)Įrrors.append((srcname, dstname, str(why))) The fastest version w/o overoptimizing the code I've got with the following code: class CTError(Exception):
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