Date: Tue, 14 Nov 1995 00:22:43 -0800 From: David Greenman <davidg@Root.COM> To: Poul-Henning Kamp <phk@critter.tfs.com> Cc: current@freebsd.org Message-ID: <199511140822.AAA00179@corbin.Root.COM> In-Reply-To: Your message of "Tue, 14 Nov 95 09:17:43 %2B0100." <173.816337063@critter.tfs.com>
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>> Attached is the patch to disable disk block sorting. It's interesting - >> I've been doing some tests here with disksort disabled and I'm actually seein > >Another thing we should >seriously< consider is to make the update do 10% >of the job every 3 seconds rather than 100% every 30 seconds. Been there, done that. It results in a large increase in the amount of disk I/O due to the way that delayed writes work and file access times are updated. "Fixing" this is very difficult and would require a rewrite of the code involved. -DG
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