Date: Tue, 17 Feb 2009 16:42:03 +0100 From: Gary Jennejohn <gary.jennejohn@freenet.de> To: Scott Long <scottl@samsco.org> Cc: FreeBSD Current <freebsd-current@freebsd.org>, Stable <freebsd-stable@freebsd.org>, FreeBSD, scsi@freebsd.org Subject: Re: HEADS UP: More CAM fixes. Message-ID: <20090217164203.4c586f48@ernst.jennejohn.org> In-Reply-To: <499981AF.9030204@samsco.org> References: <499981AF.9030204@samsco.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 16 Feb 2009 08:09:35 -0700 Scott Long <scottl@samsco.org> wrote: > FWI. I need lots of testing on this. Only real SCSI controllers, > please, not RAID controllers (except for MPT-SCSI with integrated > mirroring). So Adaptec, LSI, Symbios, Buslogic, Tekram, SME, etc, > users, please try this and get back to me. The patch should apply > to FreeBSD 7 as well. FreeBSD 6 is only affected by this problem > when CAM_NEW_TRAN_CODE is enabled. > I tested this with an Adaptec 29160. I saw no real improvement in performance, but also no regressions. I suspect that the old disk I had attached just didn't have enough performance reserves to show an improvement. My test scenario was buildworld. Since /usr/src and /usr/obj were both on the one disk it got a pretty good workout. AMD64 X2 (2.5 GHz) with 4GB of RAM. BTW under a very fresh 8.0-current. --- Gary Jennejohn
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20090217164203.4c586f48>