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Nova在NFV场景下会提供NUMA相关高级特性，这里提供一个脚本查看计算节点的NUMA相关信息。
#!/bin/bash
function get_nr_processor()
{
grep '^processor' /proc/cpuinfo | wc -l
}
function get_nr_socket()
{
grep 'physical id' /proc/cpuinfo | awk -F: '{
print $2 | "sort -un"}' | wc -l
}
function get_nr_siblings()
{
grep 'siblings' /proc/cpuinfo | awk -F: '{
print $2 | "sort -un"}'
}
function get_nr_cores_of_socket()
{
grep 'cpu cores' /proc/cpuinfo | awk -F: '{
print $2 | "sort -un"}'
}
echo '===== CPU Topology Table ====='
echo
echo '+--------------+---------+-----------+'
echo '| Processor ID | Core ID | Socket ID |'
echo '+--------------+---------+-----------+'
while read line; do
if [ -z "$line" ]; then
printf '| %-12s | %-7s | %-9s |\n' $p_id $c_id $s_id
echo '+--------------+---------+-----------+'
continue
fi
if echo "$line" | grep -q "^processor"; then
p_id=`echo "$line" | awk -F: '{print $2}' | tr -d ' '`
fi
if echo "$line" | grep -q "^core id"; then
c_id=`echo "$line" | awk -F: '{print $2}' | tr -d ' '`
fi
if echo "$line" | grep -q "^physical id"; then
s_id=`echo "$line" | awk -F: '{print $2}' | tr -d ' '`
fi
done < /proc/cpuinfo
echo
awk -F: '{
if ($1 ~ /processor/) {
gsub(/ /,"",$2);
p_id=$2;
} else if ($1 ~ /physical id/){
gsub(/ /,"",$2);
s_id=$2;
arr[s_id]=arr[s_id] " " p_id
}
}
END{
for (i in arr)
printf "Socket %s:%s\n", i, arr[i];
}' /proc/cpuinfo
echo
echo '===== CPU Info Summary ====='
echo
nr_processor=`get_nr_processor`
echo "Logical processors: $nr_processor"
nr_socket=`get_nr_socket`
echo "Physical socket: $nr_socket"
nr_siblings=`get_nr_siblings`
echo "Siblings in one socket: $nr_siblings"
nr_cores=`get_nr_cores_of_socket`
echo "Cores in one socket: $nr_cores"
let nr_cores*=nr_socket
echo "Cores in total: $nr_cores"
if [ "$nr_cores" = "$nr_processor" ]; then
echo "Hyper-Threading: off"
else
echo "Hyper-Threading: on"
fi
echo
echo '===== END ====='
</div>
查询结果示例：
===== CPU Topology Table ===== +--------------+---------+-----------+ | Processor ID | Core ID | Socket ID | +--------------+---------+-----------+ | 0 | 0 | 1 | +--------------+---------+-----------+ | 1 | 1 | 1 | +--------------+---------+-----------+ | 2 | 9 | 1 | +--------------+---------+-----------+ | 3 | 10 | 1 | +--------------+---------+-----------+ | 4 | 0 | 0 | +--------------+---------+-----------+ | 5 | 1 | 0 | +--------------+---------+-----------+ | 6 | 9 | 0 | +--------------+---------+-----------+ | 7 | 10 | 0 | +--------------+---------+-----------+ | 8 | 0 | 1 | +--------------+---------+-----------+ | 9 | 1 | 1 | +--------------+---------+-----------+ | 10 | 9 | 1 | +--------------+---------+-----------+ | 11 | 10 | 1 | +--------------+---------+-----------+ | 12 | 0 | 0 | +--------------+---------+-----------+ | 13 | 1 | 0 | +--------------+---------+-----------+ | 14 | 9 | 0 | +--------------+---------+-----------+ | 15 | 10 | 0 | +--------------+---------+-----------+ Socket 0: 4 5 6 7 12 13 14 15 Socket 1: 0 1 2 3 8 9 10 11 ===== CPU Info Summary ===== Logical processors: 16 Physical socket: 2 Siblings in one socket: 8 Cores in one socket: 4 Cores in total: 8 Hyper-Threading: on ===== END =====</div>