blob: 1de3bb8980ef719ad98dae78109e70773581a66d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
#!/usr/bin/env bash
set -euo pipefail
CPU_USAGE=0.0
SLEEP_AFTER=4
AWAKE_FRAMES=($(eval echo {A..E}))
SLEEP_FRAMES=($(eval echo {G..N}))
COUNT=0
read_cpu() {
awk '/^cpu /{
user=$2; nice=$3; sys=$4; idle=$5;
active = user + nice + sys;
total = active + idle;
printf "%d %d\n", active, total;
exit
}' /proc/stat
}
read prev_active prev_total < <(read_cpu)
while true; do
read active total < <(read_cpu)
delta_active=$((active - prev_active))
delta_total=$((total - prev_total))
if [ "$delta_total" -le 0 ] || [ "$delta_active" -lt 0 ]; then
utilization="0.0000"
else
utilization=$(awk -v a="$delta_active" -v t="$delta_total" 'BEGIN { printf "%.4f", (a / t) }')
fi
CPU_USAGE=$utilization
SPEED=$(awk -v u="$CPU_USAGE" 'BEGIN { printf "%.2f", 1 / (4 + (u * 100)) }')
# clip minimum speed
if (( $(echo "$SPEED < 0.03" | bc -l) )); then
SPEED=0.03
fi
### MAKE THE CAT SLEEP IF CPU USAGE IS LOW after SLEEP_AFTER ###
if (( $(echo "$CPU_USAGE < 0.02" | bc -l) )); then
COUNT=$((COUNT + 1))
else
COUNT=0
fi
### CAT IS SLEEPING ###
if [ $COUNT -ge $SLEEP_AFTER ]; then
for s in "${SLEEP_FRAMES[@]}";do
echo $s
sleep $SPEED
done
### CAT IS AWAKE ###
else
for i in "${AWAKE_FRAMES[@]}";do
echo $i
sleep $SPEED
done
fi
prev_active=$active
prev_total=$total
done
# vim: set ts=2 sw=2
|
