blob: d1595ad150297a18b8d9d51e6209a7804f7a5686 (
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
|
#!/usr/bin/env bash
# Don't use set -x here, since it generates a lot of output and slows
# the script down, causing unexpected test fails.
set -eu
set -o pipefail
PAGE_SIZE=$(getconf PAGE_SIZE)
BLOAT_ITERATION_TARGET=$((100 << 20)) # 100 MB
BLOAT_HOLDER=()
PID="$$"
function bloat {
local set_size mem_usage target_mem_size
set_size=$(cut -d " " -f2 "/proc/$PID/statm")
mem_usage=$((set_size * PAGE_SIZE))
target_mem_size=$((mem_usage + $1))
BLOAT_HOLDER=()
while [[ "$mem_usage" -lt "$target_mem_size" ]]; do
echo "target $target_mem_size"
echo "mem usage $mem_usage"
BLOAT_HOLDER+=("$(printf "=%0.s" {1..1000000})")
set_size=$(cut -d " " -f2 "/proc/$PID/statm")
mem_usage=$((set_size * PAGE_SIZE))
done
}
function run {
local arr=()
while :; do
bloat "$BLOAT_ITERATION_TARGET"
arr+=("${BLOAT_HOLDER[@]}")
sleep 1
done
}
run
|
