71 lines
1.9 KiB
Bash
Executable File
71 lines
1.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -ex
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set -o pipefail
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systemd-analyze log-level debug
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systemd-analyze log-target console
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# Loose checks to ensure the environment has the necessary features for systemd-oomd
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[[ "$( awk '/SwapTotal/ { print $2 }' /proc/meminfo )" != "0" ]] || echo "no swap" >> /skipped
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[[ -e /proc/pressure ]] || echo "no PSI" >> /skipped
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cgroup_type=$(stat -fc %T /sys/fs/cgroup/)
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if [[ "$cgroup_type" != *"cgroup2"* ]] && [[ "$cgroup_type" != *"0x63677270"* ]]; then
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echo "no cgroup2" >> /skipped
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fi
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[[ -e /skipped ]] && exit 0 || true
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cat > /etc/systemd/system/testworkload.slice <<EOF
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[Slice]
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CPUAccounting=true
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MemoryAccounting=true
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IOAccounting=true
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TasksAccounting=true
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ManagedOOMMemoryPressure=kill
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ManagedOOMMemoryPressureLimitPercent=50%
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EOF
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# Create a lot of memory pressure by setting memory.high to a very small value
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cat > /etc/systemd/system/testbloat.service <<EOF
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[Service]
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MemoryHigh=2M
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Slice=testworkload.slice
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ExecStart=/usr/lib/systemd/tests/testdata/units/testsuite-56-slowgrowth.sh
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EOF
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# This generates no memory pressure
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cat > /etc/systemd/system/testchill.service <<EOF
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[Service]
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MemoryHigh=2M
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Slice=testworkload.slice
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ExecStart=sleep infinity
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EOF
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systemctl daemon-reload
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systemctl start testbloat.service
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systemctl start testchill.service
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# Verify systemd-oomd is monitoring the expected units
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oomctl | grep "/testworkload.slice"
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oomctl | grep "50%"
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# systemd-oomd watches for elevated pressure for 30 seconds before acting.
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# It can take time to build up pressure so either wait 5 minutes or for the service to fail.
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timeout=$(date -ud "5 minutes" +%s)
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while [[ $(date -u +%s) -le $timeout ]]; do
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if ! systemctl status testbloat.service; then
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break
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fi
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sleep 15
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done
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# testbloat should be killed and testchill should be fine
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if systemctl status testbloat.service; then exit 42; fi
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if ! systemctl status testchill.service; then exit 24; fi
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systemd-analyze log-level info
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echo OK > /testok
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exit 0
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