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Showing content from https://mail.python.org/pipermail/python-dev/2011-January/107353.html below:

[Python-Dev] Add sendfile() to core?

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On Sun, 9 Jan 2011 11:17:40 -0800
Guido van Rossum <guido at python.org> wrote:
> Isn't that just shutil.copyfileobj()?

copyfileobj() still uses an user-space buffer (the Python bytes
object used in the loop).  The advantage of sendfile() is to bypass
user-space logic and do the transfer entirely in kernel.  How much it
allows to gain *in practice* on a modern capable OS such as Linux I
don't know.

Regards

Antoine.

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