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Date:      Wed, 29 Aug 2012 11:42:13 +0000 (UTC)
From:      jb <jb.1234abcd@gmail.com>
To:        freebsd-stable@freebsd.org
Subject:   Re: IPv4 vs. IPv6 Ethernet Performance
Message-ID:  <loom.20120829T133814-120@post.gmane.org>
References:  <503CE60F.8040007@yahoo.de>

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Norbert Aschendorff <norbert.aschendorff <at> yahoo.de> writes:

> ... 
> Little table (values in Mbit/s):
> 
> Configuration		v6	v4
> =======================================
> Linux -> Linux		925	935  # <= This could be v6's 40B header
> 				     # vs. v4's 20B
> Linux -> FreeBSD	450	700
> FreeBSD -> Linux	455	920
> =======================================
> 
> The FreeBSD->Linux value shows that the ethernet chip on the FreeBSD
> machine (it's Intel stuff on both sides, using the em(4) driver on
> FreeBSD) is able to send at full 1G speed. But why is IPv6 so slow?
 
Norbert,
may I ask you to provide one more stats item for this table, if you can ?
  FreeBSD -> FreeBSD 	???	???

Thanks,
jb





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