Date: Wed, 20 Jun 2007 09:30:06 +0300 From: "Vlad GURDIGA" <gurdiga@gmail.com> To: freebsd-fs@freebsd.org Subject: fs cache Message-ID: <da7069940706192330j19e98ed0sfc154b7fdc13fa4c@mail.gmail.com> In-Reply-To: <da7069940706170024p6dc692al62f71a2d7bbcece6@mail.gmail.com> References: <da7069940706170024p6dc692al62f71a2d7bbcece6@mail.gmail.com>
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Hello, I have FreeBSD 7-CURRENT and Ubuntu on the same computer but Firefox takes twice as long to start on a fresh boot. I've run some simple tests: - on FreeBSD it takes about 7 seconds on the first start and about 3 on subsequent startups; - on Ubuntu it takes about 3 seconds on the first start and about 1 on subsequent startups; The only difference I can see is that on Ubuntu, after first start of Firefox the memory use for cache is 22% vs. 0% on FreeBSD. My guess is that this is the cause of slower startups on FreeBSD. My question is: can I tune UFS2 in such a way that the most frequently used desktop applications would remain for a longer time in disk cache? In both cases I use GNOME 2.18, GNOME System Monitor 2.18, and Firefox 2. Both FreeBSD 7-CURRENT (src and ports tree) and Ubuntu 7.01 (2.6.20-16-generic kernel) are up to date. Both are SMP and 32bit. Here is the system configuration: - Intel DP965LT mother-board; - dual-core Pentium D 820; - 1GB of dual-channel-enabled DDR2 PC5300 at 667 MHz; - Seagate, BARRACUDA 7200.7 Plus, 160GB, ST3160827AS, 8M cache, with NCQ;
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