Date: Mon, 20 Apr 1998 08:30:49 -0700 From: Mike Smith <mike@smith.net.au> To: Bruce Evans <bde@zeta.org.au> Cc: dburr@POBoxes.com, Studded@san.rr.com, hardware@FreeBSD.ORG, stable@FreeBSD.ORG Subject: Re: best wdc0 flags ? Message-ID: <199804201530.IAA00441@dingo.cdrom.com> In-Reply-To: Your message of "Mon, 20 Apr 1998 18:27:45 %2B1000." <199804200827.SAA15511@godzilla.zeta.org.au>
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> > I tried those flags and noticed that it turned on 32-bit transfers for > >my wd0, resulting in a 20% increase in throughput. Out of curiosity, why > >aren't these flags included in GENERIC? > > Becuase they break operation of drives that don't support them. Do we have any examples of controllers that don't? MHO is that at this point we should perhaps consider converting the option to accomodate the majority case, where they do. I've never encountered a controller that didn't work with 32-bit transfers. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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