Date: Thu, 24 Aug 2006 20:09:35 +0200 From: "Laurent C" <laurent.bar@gmail.com> To: freebsd-stable@freebsd.org Subject: [AMD64-SMP] I can't get my cpus working at 100% Message-ID: <e92de5ef0608241109x2aa5b79u32a4e304d34f29d5@mail.gmail.com>
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Hello all, I can't get my athlon x2 processor working at 100% on cpu-intensive apps. I've made some tests with "john --test" and "transcode", wich are both multithreaded apps. For example if I launch transcode it takes between 50% and 55% cpu (on top), and if I launch a second transcode session on another file, the total cpu used on top is 100%, without lower the speed of the first transcode session. The same behavior occurs with john. A single "john --test" give me some speed results, and the same command with a transcode or second "john --test" give me the same speed results but now with 100% cpu used. I made a "portupgrade -auf" just after building and installing my SMP kernel and World, to be sure all is up-to-date. So it's seems it's not a "top" output problem, but a real underuse of the computing power. %uname -a FreeBSD wks02.chez.oim 6.1-STABLE FreeBSD 6.1-STABLE #0: Thu Aug 17 18:47:31 CEST 2006 laurent@wks02.chez.oim:/usr/obj/usr/src/sys/WKS02_SMP amd64 Does anyone could explain me what's happening with my system ? -- Laurent C.
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