On Sun, 2003-04-13 at 17:45, Dave Goldblatt wrote: > I know additional scheduler support for Intel's hyperthreading is in > 2.5.x, but I was under the impression that the later 2.4.x kernels would > detect a hyperthread-capable CPU as two logical processors; they will > > in my case > I've got a P4 3.06GHz CPU which only appears as a single processor under > 2.4.20-9smp, though the number of siblings in cpuinfo appears as 2. > > I expected to see two processors.. any ideas? the kernel depends on the bios to enumerate the cpus in order to find them; if only 1 is found I'd suggest trying to find a bios upgrade; my HT box needed one to find the second cpu.
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