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Krzysztof kuhy Rudnicki
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The "flags nothing on a quiet machine" case read the real /proc/loadavg and went red whenever a game was running on the host (22/16 during a BeamNG session), and the "flags a load at/above thread count" case had to SKIP whenever the host was idle. Same override pattern as JOURNALD_CONF_DIR: the harness writes a fixture, both cases now assert deterministically, and a missing file degrades to 0 as before. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SS8M5wk88nJTXxDWz61KKk
125 lines
4.6 KiB
Bash
Executable File
125 lines
4.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Tests for lib/arch_perf_probes.sh: collect_basics and check_cpu_governor.
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set -uo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck source=arch_perf_harness.sh
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. "${SCRIPT_DIR}/arch_perf_harness.sh"
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# shellcheck source=../arch_perf_probes.sh
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. "${FIXES_DIR}/lib/arch_perf_probes.sh"
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# --- collect_basics ---------------------------------------------------------
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# A quiet machine: every section is logged, and nothing is flagged.
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arch_reset
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_t_stub uname 'echo "Linux kuhy-pc 7.1.9-arch1-1"'
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_t_stub uptime 'echo " 12:00:00 up 2:00, 1 user, load average: 0.10, 0.20, 0.30"'
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_t_stub free 'echo "Mem: 32Gi 8Gi 24Gi"'
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_t_stub swapon 'exit 0'
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_t_stub lscpu 'echo "CPU(s): 16"'
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_t_stub df 'echo "/dev/nvme0n1p2 100G 40G 60G 40% /"'
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_t_stub systemd-analyze 'echo "Startup finished in 3.2s"'
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_t_stub systemctl 'exit 0'
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_t_stub journalctl 'exit 0'
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_t_stub getconf 'echo 16'
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_t_stub ps 'echo " PID COMMAND %CPU %MEM"'
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collect_basics
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report="$(_t_report)"
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_t_contains "$report" "=== Kernel ===" "collect_basics: logs the kernel section"
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_t_contains "$report" "=== Uptime ===" "collect_basics: logs the uptime section"
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_t_contains "$report" "=== Memory ===" "collect_basics: logs the memory section"
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_t_contains "$report" "=== Boot Time ===" "collect_basics: logs the boot time section"
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_t_contains "$report" "=== Failed Units ===" "collect_basics: logs the failed units section"
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_t_contains "$report" "=== Top CPU Processes ===" \
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"collect_basics: logs the top CPU processes snapshot"
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_t_eq "" "$(_t_findings)" "collect_basics: flags nothing on a quiet machine"
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# Failed units, frequent ACPI errors and a busy Xorg are each flagged.
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arch_reset
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_t_stub getconf 'echo 16'
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_t_stub_stdin systemctl <<'STUB_BODY'
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if [[ "$*" == *"--failed --no-legend"* ]]; then
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echo "foo.service loaded failed failed Foo"
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echo "bar.service loaded failed failed Bar"
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fi
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exit 0
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STUB_BODY
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_t_stub_stdin journalctl <<'STUB_BODY'
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for _ in 1 2 3 4 5 6; do
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echo "kernel: ACPI Error: something went wrong"
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done
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exit 0
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STUB_BODY
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_t_stub_stdin ps <<'STUB_BODY'
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if [[ "$*" == *"-C Xorg"* ]]; then
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echo " 45.0"
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exit 0
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fi
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echo " PID COMMAND %CPU %MEM"
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STUB_BODY
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collect_basics
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findings="$(_t_findings)"
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_t_contains "$findings" "systemd units are failed (2)" \
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"collect_basics: flags failed systemd units and counts them"
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_t_contains "$findings" "ACPI errors detected" \
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"collect_basics: flags frequent ACPI errors"
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_t_contains "$findings" "Xorg is using high CPU (45%)" \
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"collect_basics: flags a CPU-hungry Xorg"
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# A load average at or above the thread count is flagged.
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arch_reset
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_t_stub getconf 'echo 16'
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_t_stub systemctl 'exit 0'
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_t_stub journalctl 'exit 0'
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_t_stub ps 'echo none'
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echo "16.50 12.00 9.00 3/900 1" >"${LOADAVG_FILE}"
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collect_basics
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_t_contains "$(_t_findings)" "load average is at/above CPU thread count (16/16)" \
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"collect_basics: flags a load average at or above the thread count"
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# An unreadable load file degrades to 0 rather than aborting the probe.
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arch_reset
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_t_stub systemctl 'exit 0'
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_t_stub journalctl 'exit 0'
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_t_stub ps 'echo none'
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rm -f "${LOADAVG_FILE}"
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collect_basics
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_t_eq "" "$(_t_findings)" "collect_basics: missing load file is not a finding"
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# --- check_cpu_governor -----------------------------------------------------
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# The lib runs `find /sys/devices/system/cpu`, a real path with no override,
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# so `find` is stubbed to control which governor files it reports.
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arch_reset
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mkdir -p "${TEST_TMPDIR}/gov"
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echo "performance" >"${TEST_TMPDIR}/gov/cpu0"
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echo "performance" >"${TEST_TMPDIR}/gov/cpu1"
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printf '%s\n%s\n' "${TEST_TMPDIR}/gov/cpu0" "${TEST_TMPDIR}/gov/cpu1" >"${DEV}/gov_list"
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_t_stub_cat find gov_list
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check_cpu_governor
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_t_contains "$(_t_report)" "CPU governor summary: performance:2" \
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"check_cpu_governor: summarises the governors in use"
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_t_eq "" "$(_t_findings)" "check_cpu_governor: flags nothing when every core is on performance"
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# A core left on powersave is the condition the probe exists for.
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arch_reset
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echo "powersave" >"${TEST_TMPDIR}/gov/cpu1"
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_t_stub_cat find gov_list
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check_cpu_governor
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_t_contains "$(_t_findings)" "governor includes 'powersave'" \
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"check_cpu_governor: flags a core left on the powersave governor"
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# No governor files at all: an action, not a finding, and no hang.
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arch_reset
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: >"${DEV}/gov_list"
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_t_stub_cat find gov_list
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check_cpu_governor
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_t_contains "$(_t_actions)" "CPU governor files not found" \
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"check_cpu_governor: records an action when no governor files exist"
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_t_eq "" "$(_t_findings)" "check_cpu_governor: records no finding when governors are unsupported"
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echo
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echo "arch_perf_probes (basics/governor): ${PASS} passed, ${FAIL} failed"
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((FAIL == 0))
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