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Date:      Tue, 8 Jun 1999 18:04:33 +0300
From:      Vallo Kallaste <vallo@matti.ee>
To:        Rich Winkel <rich@chumbly.math.missouri.edu>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: Freebsd FS i/o blocksize?
Message-ID:  <19990608180433.B25205@myhakas.matti.ee>
In-Reply-To: <199906072227.RAA06758@chumbly.math.missouri.edu>; from Rich Winkel on Mon, Jun 07, 1999 at 05:27:21PM -0500
References:  <199906072227.RAA06758@chumbly.math.missouri.edu>

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On Mon, Jun 07, 1999 at 05:27:21PM -0500, Rich Winkel <rich@chumbly.math.missouri.edu> wrote:

> I'm comparing raid controllers, and their relative throughputs are
> heavily dependent on the scsi i/o blocksize (not surprisingly).  Can
> someone tell me the blocksize freebsd uses in scsi FS file i/o?  If it
> matters, this would be a freebsd 3.2 nfs server.

The maximum is 64KB for one transaction if I can recall some of the 
Greg Lehey's messages.  The usual is around 8KB per transaction. I can 
be wrong, I'm not expert by any means.
-- 

Vallo Kallaste
vallo@matti.ee


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