What is the default buffer size of CreateFile in Windows?

Posted by Jinx on Stack Overflow See other posts from Stack Overflow or by Jinx
Published on 2009-05-18T02:04:23Z Indexed on 2010/03/20 20:21 UTC
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winapi

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createfile

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buffer

When CreateFile Function is called without the flag FILE_FLAG_NO_BUFFERING, what is the size of the inner buffer of operating system?

If my buffer size is larger than the inner buffer of Windows, can I fully use up the throughput of disk?

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