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|
#!/bin/bash
sum()
{
local total=0 n
for n in $*
do
total=$((total + n))
done
echo $total
}
last()
{
local n=$1
shift
set -- $*
while [ $# -ge "$n" ]
do
shift
done
printf '%s\n' "$*"
}
iotop_reader()
{
log=
pct_log=
while read line
do
case "$line" in
"Total DISK"*)
pct=$(sum $pct_log)
[ "$pct" -ge 85 ] && over=y || over=
pct_log=
if [ "$over" ]
then
log=$(last 10 $log 1)
over=
sum=$(sum $log)
if [ "$(sum $log)" -gt 4 ]
then
log= # this is year zero; all past history is erased.
(
set -x
kill $pids
)
fi
else
log=$(last 10 $log 0)
fi
case "$log" in
*1* )
echo IO '!!' $log >&2
;;
# * )
# echo IO OK $log >&2
# ;;
esac
;;
"Current DISK"*) continue ;;
*)
set -- $line
pct=${10%.*}
pct_log="$pct_log $pct"
;;
esac
done
}
sudo_iotop()
{
if [ "$UID" = 0 ]
then
command iotop "$@"
else
sudo iotop "$@"
fi
}
if [ $# -le 0 ]
then
exit
fi
pids=$*
sudo_iotop -qq -b $(printf '\55\55pid=%s\n' "$@") | iotop_reader
|
