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Date:      Thu, 21 May 2009 18:30:21 +0200
From:      Ed Schouten <ed@80386.nl>
To:        Kostik Belousov <kostikbel@gmail.com>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r192544 - head/sys/kern
Message-ID:  <20090521163021.GK1271@hoeg.nl>
In-Reply-To: <20090521162422.GR1927@deviant.kiev.zoral.com.ua>
References:  <200905211619.n4LGJsDV071739@svn.freebsd.org> <20090521162422.GR1927@deviant.kiev.zoral.com.ua>

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* Kostik Belousov <kostikbel@gmail.com> wrote:
> Why is this enabled by sysctl ? Such feature shall be unconditional if
> it has any value.

Because it reduces performance significantly. If I remember correctly,
UMTS devices (u3g, etc) have big buffer sizes. This means that we have
to zero a lot of memory.

The code was already present, but not enabled, so I thought it would
have been better to at least offer it as an easy to enable feature.

--=20
 Ed Schouten <ed@80386.nl>
 WWW: http://80386.nl/

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