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30 lines
805 B
Bash
Executable File
30 lines
805 B
Bash
Executable File
#!/bin/bash
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ini=/var/local/emhttp/diskload.ini
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declare -a sector reads writes
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# t = poll interval in seconds
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t=6
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# get sector size of each disk
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c=0
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for dev in $(awk '/(sd[a-z]*|nvme[0-9]n1) /{print $3}' /proc/diskstats); do
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sector[c]=$(cat /sys/block/$dev/queue/hw_sector_size 2>/dev/null)
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[[ -z ${sector[c]} ]] && sector[c]=512
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((c++))
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done
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# start daemon
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while :; do
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stats=($(awk '/(sd[a-z]*|nvme[0-9]n1) /{print $3,$6,$10,$4,$8}' /proc/diskstats))
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c=0; s=${#stats[@]}
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echo -n >$ini
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for ((i=0;i<s;i+=5)); do
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reads[c]=$((stats[i+1]-reads[c]))
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writes[c]=$((stats[i+2]-writes[c]))
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echo ${stats[i]}=$((reads[c]*sector[c]/t)) $((writes[c]*sector[c]/t)) ${stats[i+3]} ${stats[i+4]} >>$ini
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reads[c]=${stats[i+1]}
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writes[c]=${stats[i+2]}
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((c++))
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done
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sleep $t
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done &
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