Date: Wed, 6 Jul 2005 15:19:07 -0400 From: Louis LeBlanc <FreeBSD@keyslapper.net> To: freebsd-questions@freebsd.org Subject: Re: Weird "nice" behavior Message-ID: <20050706191907.GC42229@keyslapper.net> In-Reply-To: <20050706185531.GA31552@xor.obsecurity.org> References: <pan.2005.07.06.03.56.44.535357@sremick.net> <44u0j7iyep.fsf@be-well.ilk.org> <20050706185531.GA31552@xor.obsecurity.org>
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--0ntfKIWw70PvrIHh Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 07/06/05 02:55 PM, Kris Kennaway sat at the `puter and typed: > On Wed, Jul 06, 2005 at 02:26:22PM -0400, Lowell Gilbert wrote: > > "Scott I. Remick" <scott@sremick.net> writes: > >=20 > > > I'm seeing something strange/annoying tonight... maybe someone could = help > > > explain why it's happening. > > >=20 > > > FreeBSD 5.4-RELEASE > > > <SNIP> > >=20 > > Sounds like you're blocked on I/O, not CPU. =20 > > SCSI drives with tagged queueing would probably perform better. >=20 > Also look for Jeff Roberson's patch that addresses this performance > problem, which was sent (and committed) to -current a month or so ago, > and which I think I forwarded to -stable. I haven't noticed this problem myself (and I'm using 5.4 RELEASE), probably because I'm not using SCSI, but I am curious about the patch committal. If I understand right, this patch is not currently committed to the RELENG_5_4 branch, that not being the same as STABLE or CURRENT. Since this is a performance issue that many (like the OP) would consider serious, is there any chance this patch would make it to RELENG_5_4? I ask this purely out of curiosity, not to see whether I (or anyone else) agrees or disagrees with it. :) Thanks! Lou --=20 Louis LeBlanc FreeBSD-at-keyslapper-DOT-net Fully Funded Hobbyist, KeySlapper Extrordinaire :) Please send off-list email to: leblanc at keyslapper d.t net Key fingerprint =3D C5E7 4762 F071 CE3B ED51 4FB8 AF85 A2FE 80C8 D9A2 Did you hear that two rabbits escaped from the zoo and so far they have only recaptured 116 of them? --0ntfKIWw70PvrIHh Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFCzC6rr4Wi/oDI2aIRAuQPAJwNUc984NgoMOlyCvpbppO0pVZ/twCaA9rG Jw25Z+KXgsJf2CXAr9F0uTE= =ZD0i -----END PGP SIGNATURE----- --0ntfKIWw70PvrIHh--
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