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
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