Date: Mon, 22 Nov 2004 15:12:51 +0100 From: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=) To: arch@freebsd.org Subject: anticipatory I/O scheduling Message-ID: <xzpu0rigefw.fsf@dwp.des.no>
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I just ran across this paper and started wondering why I'd never heard of it before: <URL:http://www.cs.rice.edu/~ssiyer/r/antsched/>; To summarize, the authors rewrote the I/O scheduling algorithm in FreeBSD 4.3 and got massive performance improvements for Apache, and smaller but noticeable improvements for AFS and TPC-B. Has anyone looked into this? DES --=20 Dag-Erling Sm=F8rgrav - des@des.no
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