Date: Mon, 10 Apr 2000 13:01:29 +0100 From: "Koster, K.J." <K.J.Koster@kpn.com> To: "'Alexey N. Dokuchaev'" <danfe@inet.ssc.nsu.ru> Cc: freebsd-hackers@FreeBSD.ORG Subject: RE: What are the best gcc optimization options for Pentium 200 M Message-ID: <59063B5B4D98D311BC0D0001FA7E452201313A90@l04.research.kpn.com>
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> > Can you lead us to any of this HOWTO's? Tnx. > Well, many good sys admin books exist, I already mentioned "System Performance Tuning", it's one of the Nutshell handbooks. I don't know the author off the top of my head. The mailing list achives will give you plenty of tips and tricks, although less organised. :) I that book, the author suggests you first create a benchmark and then try to determine what resources and optimizations apply. The author states that a good sysadmin knows exactly what the bottlenecks are in his or her system. I found that buying that book saved me well over the price of it in time and hardware. For me, the benchmark is building a GENERIC kernel, since I do a lot of c++ development. I timed that and found with vmstat and friends that I was using not even 50% of my cpu. I needed more memory (so I now run twm only) and optimize disk access (my /usr is now striped across two disks, each with their own controller) and eliminate disk access (MFS on /tmp, setenv TMPDIR /tmp). Currently, my bottleneck is memory bandwidth, and I will fix that with an Athlon/KX133 combo in a month or so. :-) Frankly, compiler optimizations are not even mentioned. Kees Jan ============================================== You are only young once, but you can stay immature all your life To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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