A Windows File System Driver can speed up file I/O operations?

Giganews Newsgroups
Subject: A Windows File System Driver can speed up file I/O operations?
Posted by:  Dash (dash.fisch…@gmail.com)
Date: Sun, 5 Apr 2020

Hi,

I'm not sure this is the right group.
I've been looking at some applications, like antivirus, antimalware ecc, and
I've been surprised to see how fast they are in accessing and reading the file
system. I'm not sure I can get the same speed using the traditional
CreateFile()/CloseHandle() api functions.

So my questions are:
1) do they use a file system driver (mini driver?)?
1.1) If so, how could a file system driver speed up those operations compared
      to the traditional ones?

2) Or do they use Win32 file APIs with IO completion port or something like that?

Thanks

-- Dash

Replies