Date: Wed, 19 Jan 2005 19:41:10 +0100 From: "Jorn Argelo" <jorn@wcborstel.nl> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD I LOVE YOU Message-ID: <20050119183246.M40105@wcborstel.nl> In-Reply-To: <24950525.20050119161422@wanadoo.fr> References: <20050119081722.87869.qmail@web51001.mail.yahoo.com> <200501191220.55614.ian@codepad.net> <24950525.20050119161422@wanadoo.fr>
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On Wed, 19 Jan 2005 16:14:22 +0100, Anthony Atkielski wrote > Xian writes: > > X> I installed FreeBSD on a machine with an Athlon 3200 that I > accident under X> clocked to 1.4GHz. I didn't notice for quite a > while as the performance was X> amazing any way. It didn't half go > some when I put the clock speed up to X> 2.2GHz. > > I think people nowadays forget how fast computers are. Remember, > UNIX was designed long ago, at a time when a computer that could > hit one million integer instructions per second was nearly science fiction. > UNIX was therefore designed to be fast, and even today, despite the > gradual evolution that the OS has undergone, it still is extremely fast > compared to certain very bloated operating systems that were written > at a later time, when increasing hardware speeds could conceal > laziness on the part of systems programmers. > > Given what older hardware used to support under UNIX, I wouldn't be > at all surprised if you could support 1000 simultaneous timesharing users > on FreeBSD with a modern PC. If you add X then you naturally gobble > up resources and bring UNIX closer to Windows or the Mac, but if you > run a straight text-only OS, it can be hard to ever come close to > the machine capacity with any kind of real-world load (meaning a > realistic load of the type for which UNIX was intended). > > I never seen less than about 97% idle my machine, and the average > over time is closer to 99.9% idle. The machine is definitely > working, but with a streamlined OS and straightforward applications > that don't have to drive GUIs or play music or animate movies, it flies. I'm running FreeBSD 5.3 on my server and it has periods it's just 100% idle. I'm running some perl scripts every five minutes, but that doesn't put too much load in the machine either. As a matter of fact, it's rare that the machine has a higher load of 0.15. And I'm running quite a bit of things on that machine (Apache, MySQL, Postfix, amavisd with spamassassin and clamav, RRDtool, SNMP, samba and some more stuff). Though it's a Pentium 4 2 Ghz with 512 MB ram, but I don't have any other hardware. Figured I might as well make it a relatively fast machine. Either way, I never want another server OS again. This is great. Jorn
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