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Date:      Fri, 26 Sep 2008 12:41:56 -0500
From:      Kevin Day <toasty@dragondata.com>
To:        freebsd-net@freebsd.org
Subject:   sfbufs on amd64?
Message-ID:  <81F28D26-4E90-4C6F-94DB-FB834F3B78F9@dragondata.com>

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When using sendfile() on an amd64 box, are sfbufs still used/needed?  
The reason I ask:

# netstat -m
0/0/0 sfbufs in use (current/peak/max)
0 requests for sfbufs denied
0 requests for sfbufs delayed
1334122 requests for I/O initiated by sendfile

kern.ipc.nsfbufsused: 0
kern.ipc.nsfbufspeak: 0
kern.ipc.nsfbufs: 0


Does sendfile work differently on amd64 so that sfbufs aren't needed,  
or is this a statistics issue?

This is in 7.0-RELEASE, btw.

-- Kevin





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