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Ask The Performance Team

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Slow Large File Copy Issues

Microsoft

Mar 16, 2019

First published on TECHNET on May 08, 2007 From time to time, customers will call in to report "performance problems" that they are having when copying large files...

Updated Mar 16, 2019

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CraigMarcho

Microsoft

Joined March 15, 2019

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Jeffrey Foxx

Copper Contributor

Aug 26, 2020

This article is a bit unsatisfying. If file system cache overhead slows down copying, say, a 4 GB file, wouldn't it do the same thing when copying thousands of small files adding up to 4 GB? If not, why not? Could it have something to do with how metadata is handled?

Jeffrey Fox