Date: Tue, 1 Aug 2006 13:18:56 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-amd64@freebsd.org Cc: Evgeny Larionov <AloneLion@mail.ru>, freebsd-gnats-submit@freebsd.org Subject: Re: amd64/101132: Incorrect cpu idle and usage statistics in top and systat programs in SMP 6.1-STABLE/amd64 Message-ID: <200608011318.56644.jhb@freebsd.org> In-Reply-To: <200608010116.k711G5QU033399@www.freebsd.org> References: <200608010116.k711G5QU033399@www.freebsd.org>
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On Monday 31 July 2006 21:16, Evgeny Larionov wrote: > > >Number: 101132 > >Category: amd64 > >Synopsis: Incorrect cpu idle and usage statistics in top and systat programs in SMP 6.1-STABLE/amd64 > >Confidential: no > >Severity: non-critical > >Priority: low > >Responsible: freebsd-amd64 > >State: open > >Quarter: > >Keywords: > >Date-Required: > >Class: sw-bug > >Submitter-Id: current-users > >Arrival-Date: Tue Aug 01 01:20:14 GMT 2006 > >Closed-Date: > >Last-Modified: > >Originator: Evgeny Larionov > >Release: 6.1-STABLE > >Organization: > Comlink > >Environment: > FreeBSD test.comlink.khakassia.ru 6.1-STABLE FreeBSD 6.1-STABLE #1: Sat Jul 29 19:18:29 KRAST 2006 lion@test.comlink.khakassia.ru:/usr/obj/usr/src/sys/HOSTING amd64 > >Description: > systat -v and top show incorrect information in SMP 6.1-STABLE under amd64. > When run two program with 100% cpu alocation (using only calculation without idle) on processor with HTT (2 logical processors) top and systat show only not more 50% cpu usage with 50% idle. Try enabling hyperthreading via machdep.hyperthreading_allowed=1. -- John Baldwin
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