linux
物理: cat /proc/cpuinfo | grep "physical id" | sort | uniq | wc -l

邏輯: cat /proc/cpuinfo | grep "processor" | wc -l

solaris10
物理和邏輯: psrinfo -pv

aix5
物理: smtctl | grep threads | wc -l
prtconf | grep "Number Of Processors" | awk -F: '{print $2}'

邏輯: bindprocessor -q

hpux11
物理: lsdev -C | grep Processes | wc -l
echo runningprocs/D | adb -k /stand/vmunix /dev/mem

freebsd6
物理：
邏輯： dmesg | grep /SMP | awk -F: '{print $3}' | awk '{print $1}'

[@more@]

【轉】各系統下檢視cpu物理和邏輯個數

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