From owner-freebsd-alpha Thu Jun 29 9:28:39 2000 Delivered-To: freebsd-alpha@freebsd.org Received: from wall.polstra.com (rtrwan160.accessone.com [206.213.115.74]) by hub.freebsd.org (Postfix) with ESMTP id 99AEC37B9E6 for ; Thu, 29 Jun 2000 09:28:31 -0700 (PDT) (envelope-from jdp@polstra.com) Received: from vashon.polstra.com (vashon.polstra.com [206.213.73.13]) by wall.polstra.com (8.9.3/8.9.3) with ESMTP id JAA26423; Thu, 29 Jun 2000 09:28:30 -0700 (PDT) (envelope-from jdp@polstra.com) From: John Polstra Received: (from jdp@localhost) by vashon.polstra.com (8.9.3/8.9.1) id JAA23243; Thu, 29 Jun 2000 09:28:30 -0700 (PDT) (envelope-from jdp@polstra.com) Date: Thu, 29 Jun 2000 09:28:30 -0700 (PDT) Message-Id: <200006291628.JAA23243@vashon.polstra.com> To: tpnelson@echidna.stu.cowan.edu.au Subject: Re: Cache line size for the Alpha In-Reply-To: <395A0EE8.28E6C524@student.cowan.edu.au> References: <395A0EE8.28E6C524@student.cowan.edu.au> Organization: Polstra & Co., Seattle, WA Cc: alpha@freebsd.org Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org In article <395A0EE8.28E6C524@student.cowan.edu.au>, Trent Nelson wrote: > 21064, 21064A, 21066, 21066A, 21164 all have line sizes of 32-bytes. > The 21264 has a 64-byte line size. Thanks for the info! Now does anybody know whether it makes a difference performance-wise to put spinlocks in separate cache lines on the Alpha? I understand that it makes a big difference on the x86. But one person told me in private mail that he didn't think it mattered on the Alpha. John -- John Polstra jdp@polstra.com John D. Polstra & Co., Inc. Seattle, Washington USA "Disappointment is a good sign of basic intelligence." -- Chögyam Trungpa To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message