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Date: Tue, 12 May 2015 15:03:56 +0300
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Poul-Henning Kamp <phk@phk.freebsd.dk>
Cc: John-Mark Gurney <jmg@funkthat.com>,
 Baptiste Daroussin <bapt@freebsd.org>, current@freebsd.org
Subject: Re: Increase BUFSIZ to 8192
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On Tue, May 12, 2015 at 06:31:33AM +0000, Poul-Henning Kamp wrote:

> >Also, you'd probably see even better performance by increasing the
> >size to 64k, [...]
> 
> easy:
> 	8K on 32bit
> 	64k on 64bit

Need benchmarking.
May be 16K is local maximum (L1 cache-efficient).