Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 21 Mar 1999 12:54:23 -0800 (PST)
From:      Tom <tom@sdf.com>
To:        Greg Lehey <grog@lemis.com>
Cc:        Nick Hilliard <nick@iol.ie>, freebsd-scsi@FreeBSD.ORG
Subject:   Re: dpt raid-5 performance
Message-ID:  <Pine.BSF.4.05.9903211252070.24283-100000@misery.sdf.com>
In-Reply-To: <19990321084436.Z429@lemis.com>

next in thread | previous in thread | raw e-mail | index | archive | help

On Sun, 21 Mar 1999, Greg Lehey wrote:

> > FreeBSD will likely never send IOs big enough for the strip size of
> > 512kb to ever be useful.
> 
> It does.  The largest I/O transfer is 64 kB.  You don't want to
> fragment requests, because that increases the I/O load on the array.

  At the cost of single-process performance.

Tom



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.05.9903211252070.24283-100000>