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systemd-stable/test/units/testsuite-55-slowgrowth.sh
Frantisek Sumsal 6f47e45c67 test: configure swap for TEST-55-OOMD
oomd works way better with swap, so let's make the test less flaky by
configuring a swap device for it. This also allows us to drop the ugly
`cat`s from the load-generating script.
2021-04-23 14:36:14 +02:00

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#!/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