calculate rps cpu mask

gistfile1.txt

#!/bin/bash

# 96 core at most
calc_rps_cpus()
{
    local cpu_ids=$(echo $@ | sort)

    local h=0
    local m=0
    local l=0

    for i in $(echo $cpu_ids)
    do
        if [ $i -lt 32 ]; then
            l=$((0x1<<$i | $l))
        elif [ $i -lt 64 ]; then
            i=$((i-32))
            m=$((0x1<<$i | $m))
        elif [ $i -lt 96 ]; then
            i=$((i-64))
            h=$((0x1<<$i | $h))
        fi
    done
    printf "%08x,%08x,%08x" $h $m $l
}

# examples
echo $(calc_rps_cpus 0 95)
echo $(calc_rps_cpus 0 1 2 3)
echo $(calc_rps_cpus 64 65 66 67)
echo $(calc_rps_cpus 92 93 94 95)
echo $(calc_rps_cpus 8 9 10 11 12 13 14 15)