Date: Mon, 28 Aug 2006 10:28:43 +1000 From: Mikhail Goriachev <mikhailg@webanoide.org> To: Noah <admin2@enabled.com> Cc: freebsd-questions@freebsd.org Subject: Re: 5.5 and SMP Message-ID: <44F238BB.8090203@webanoide.org> In-Reply-To: <44F20B3D.4060001@enabled.com> References: <44F20B3D.4060001@enabled.com>
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Noah wrote: > Hi there, > > I just installed 5.5 for the first time and I am trying to make sure > that SMP is operating properly. The kernel I have loaded is rebuilt > with SMP support. okay the dmesg is showing two logical CPUs. I > actually only have one CPU as you can tell by the boot information. I > am wondering why top is always displaying '0' in the C column? on my > 4.11 machines that number is set to 0 or 1 depending on the logical CPU > that is accessed. > > --- snip ---- > > Aug 27 19:19:24 hurricane kernel: Hyperthreading: 2 logical CPUs > Aug 27 19:19:24 hurricane kernel: real memory = 2145849344 (2046 MB) > Aug 27 19:19:24 hurricane kernel: avail memory = 2094419968 (1997 MB) > Aug 27 19:19:24 hurricane kernel: FreeBSD/SMP: Multiprocessor System > Detected: 2 CP > Us > Aug 27 19:19:24 hurricane kernel: cpu0 (BSP): APIC ID: 0 > Aug 27 19:19:24 hurricane kernel: cpu1 (AP): APIC ID: 1 > > ---- snip --- Hi, You have to activate hyperthreading: http://docs.freebsd.org/cgi/mid.cgi?20060730235206.7A7B743D45 Cheers, Mikhail. -- Mikhail Goriachev Webanoide Telephone: +61 (0)3 62252501 Mobile Phone: +61 (0)4 38255158 E-Mail: mikhailg@webanoide.org Web: http://www.webanoide.org PGP Key ID: 0x4E148A3B PGP Key Fingerprint: D96B 7C14 79A5 8824 B99D 9562 F50E 2F5D 4E14 8A3B
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