Date: Tue, 18 Jul 2006 15:31:49 +0200 (CEST) From: Martin Blapp <mb@imp.ch> To: freebsd-stable@freebsd.org Subject: Please confirm: top(1) cpu time broken on FreeBSD 6.1 (RELEASE/STABLE) SMP ? Message-ID: <20060718152306.X36995@godot.imp.ch>
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Hi all, I'm currently seeing strang things going on on all our upgraded SMP 2 CPU boxes. 4 Boxes are upgraded from 5.5 to 6 STABLE, one box is running 6.1 RELEASE. All of them have SMP kernels, just using the provided GENERIC and SMP kernel config files. Mergemaster has been done on all boxes. If a box is full loaded top(1) shows: CPU states: 41.7% user, 0.0% nice, 7.7% system, 0.6% interrupt, 50.0% idle I can buildworld -j 100, do verything what I want. The sum of idle time never goes below 50.0% idle ! And the sum of total CPU time never goes over 50.0%. So I wonder if just top is broken (in 6.1 RELEASE too), or if this is a SCHED4BSD bug. Can someone confirm this issue ? We see it on IBL X-Series 346 Boxes, as on IBM 306M Dual Core SMP systems. Martin Martin Blapp, <mb@imp.ch> <mbr@FreeBSD.org> ------------------------------------------------------------------ ImproWare AG, UNIXSP & ISP, Zurlindenstrasse 29, 4133 Pratteln, CH Phone: +41 61 826 93 00 Fax: +41 61 826 93 01 PGP: <finger -l mbr@freebsd.org> PGP Fingerprint: B434 53FC C87C FE7B 0A18 B84C 8686 EF22 D300 551E ------------------------------------------------------------------
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