/proc/cpuinfo & top
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Hi,
I compiled 2.4.21 kernel with SMP and High-MEM enabled on a dual-CPU box, but surprised to see there're 4 CPUs in /proc/cpuinfo and top. But /proc/cpuinfo is correct if SMP is disable during kernel configuration. Did anybody experience this before?
Many thanks in advance
- Yaoping Ruan
Quoted 6 lines · Yaoping Ruan
Hi,
I compiled 2.4.21 kernel with SMP and High-MEM enabled on a dual-CPU box, but surprised to see there're 4 CPUs in
/proc/cpuinfoand top. But/proc/cpuinfois correct if SMP is disable during kernel configuration. Did anybody experience this before?
Pretty much an FAQ by now, but here it is from the horse's mouth;
http://www.intel.com/products/ht/hyperthreading_more.htm
http://www.intel.com/products/ht/hyperthreading.htm?iid=ipp_htm+ht&
Quoted 6 lines · On Mon, 27 Oct 2003 16:31:40 -0500 (EST) Yaoping Ruan <[email protected]>…
Hi,
I compiled 2.4.21 kernel with SMP and High-MEM enabled on a dual-CPU box, but surprised to see there're 4 CPUs in
/proc/cpuinfoand top. But/proc/cpuinfois correct if SMP is disable during kernel configuration. Did anybody experience this before?
P4s with HT by any chance?
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Quoted 1 line · Yaoping Ruan
Hi,
Hi,
Quoted 4 lines
I compiled 2.4.21 kernel with SMP and High-MEM enabled on a dual-CPU box, but surprised to see there're 4 CPUs in
/proc/cpuinfoand top. But/proc/cpuinfois correct if SMP is disable during kernel configuration. Did anybody experience this before?
Is it a dual HT system? Two HyperThreaded CPUs should become 4 virtual CPUs.
Quoted 3 lines
Many thanks in advance
- Yaoping Ruan
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