cpu, core, processor 정보 구하기

CPU, core 정보를 구할 때는 아래 명령어를 이용하자.

/usr/bin/kstat -m cpu_info

/usr/sbin/psrinfo  --> CPU 정보 (solaris)

/usr/sbin/prtdiag --> HW 정보 (solaris)

그외 시스템 정보 및 상태 확인할 때는  psrinfo, prtconf, dmesg, format, netstat, uname 등을 이용 가능하다. 

아래는 CPU 개수를 편하게 확인할 수 있는 script이다.

http://technopark02.blogspot.kr/2011/04/solaris-show-me-cpu-vcpu-core-counts.html

#!/bin/bash

# original

/usr/bin/kstat -m cpu_info | egrep "chip_id|core_id|module: cpu_info" > /var/tmp/cpu_info.log

# solaris 10에서는 pkg_core_id, core_id 둘다 존재하는데, pkg_core_id만 grep 하면 된다
/usr/bin/kstat -m cpu_info | egrep "chip_id|pkg_core_id|module: cpu_info" > /var/tmp/cpu_info.log

nproc=`(grep chip_id /var/tmp/cpu_info.log | awk '{ print $2 }' | sort -u | wc -l | tr -d ' ')`
ncore=`(grep core_id /var/tmp/cpu_info.log | awk '{ print $2 }' | sort -u | wc -l | tr -d ' ')`
vproc=`(grep 'module: cpu_info' /var/tmp/cpu_info.log | awk '{ print $4 }' | sort -u | wc -l | tr -d ' ')`

nstrandspercore=$(($vproc/$ncore))
ncoresperproc=$(($ncore/$nproc))

speedinmhz=`(/usr/bin/kstat -m cpu_info | grep clock_MHz | awk '{ print $2 }' | sort -u)`
speedinghz=`echo "scale=2; $speedinmhz/1000" | bc`

echo "Total number of physical processors: $nproc"
echo "Number of virtual processors: $vproc"
echo "Total number of cores: $ncore"
echo "Number of cores per physical processor: $ncoresperproc"
echo "Number of hardware threads (strands or vCPUs) per core: $nstrandspercore"
echo "Processor speed: $speedinmhz MHz ($speedinghz GHz)"

# now derive the vcpu-to-core mapping based on above information #

echo -e "\n** Socket-Core-vCPU mapping **"
let linenum=2

for ((i = 1; i <= ${nproc}; ++i ))
do
        chipid=`sed -n ${linenum}p /var/tmp/cpu_info.log | awk '{ print $2 }'`
        echo -e "\nPhysical Processor $i (chip id: $chipid):"

        for ((j = 1; j <= ${ncoresperproc}; ++j ))
        do
                let linenum=($linenum + 1)
                coreid=`sed -n ${linenum}p /var/tmp/cpu_info.log | awk '{ print $2 }'`
                echo -e "\tCore $j (core id: $coreid):"

                let linenum=($linenum - 2)
                vcpustart=`sed -n ${linenum}p /var/tmp/cpu_info.log | awk '{ print $4 }'`

                let linenum=(3 * $nstrandspercore + $linenum - 3)
                vcpuend=`sed -n ${linenum}p /var/tmp/cpu_info.log | awk '{ print $4 }'`

                echo -e "\t\tvCPU ids: $vcpustart - $vcpuend"
                let linenum=($linenum + 4)
        done
done
 

rm /var/tmp/cpu_info.log

실행 결과 예시)

 $ bash showcpucount.sh

Total number of physical processors: 1

Number of virtual processors: 8

Total number of cores: 4

Number of cores per physical processor: 4

Number of hardware threads (strands or vCPUs) per core: 2

Processor speed: 2400 MHz (2.40 GHz)

** Socket-Core-vCPU mapping **

Physical Processor 1 (chip id: 0):

        Core 1 (core id: 0):

                vCPU ids: 0 - 1

        Core 2 (core id: 9):

                vCPU ids: 2 - 3

        Core 3 (core id: 0):

                vCPU ids: 4 - 5

        Core 4 (core id: 9):

                vCPU ids: 6 - 7