Date: Tue, 19 Oct 2004 11:05:41 -0600 From: Brett Glass <brett@lariat.org> To: current@freebsd.org Subject: Slow disk performance on FreeBSD 5.3 beta Message-ID: <6.1.1.1.2.20041019110051.05b50690@localhost>
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I'm benchmarking the latest beta of FreeBSD 5.3 against 4.10, and am finding that disk performance is siginificantly slower. (I've scanned the list archives and have seen that others have reported similar problems.) Yes, I've turned off every debugging option I can find, so it's not that. I have to build a high performance system for disk-intensive tasks this week, and so will use either 4.10 or Dragonfly (a fork of 4.x-STABLE) for it. Has anyone identified the bottleneck? Is it in the ATA drivers themselves, or in another subsystem like geom or UFS2? --Brett Glass
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