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Message-ID: <CAA3ZYrANmX=ixNrUag41+bkyp=HTROfE3DscBWSiew00qB4eqg@mail.gmail.com>
Subject: Re: IBM blade server abysmal disk write performances
From: Dieter BSD <dieterbsd@gmail.com>
To: freebsd-hackers@freebsd.org
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I wrote:
> The kernel must be doing write-behind even to a raw disk, otherwise
> waiting for write(2) to return before issuing the next write would
> slow it down as Matthew suggests.

And a minute after hitting send, I remembered that FreeBSD does not
provide the traditional "raw" disk devices, e.g. /dev/rda0 with an 'r'.
(Now if I could just remember *why* it doesn't.)