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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
111 lines
3.4 KiB
Bash
Executable File
111 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# lib/tests/arch_perf_harness.sh — shared setup for the arch performance lib
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# tests (arch_perf_report.sh, arch_perf_probes.sh).
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#
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# Sourced, not executed. Builds on lib_test_core.sh and adds the pieces these
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# libs read from their entry script, diagnose_arch_performance.sh:
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#
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# * REPORT_FILE, FINDINGS, ACTIONS and the APPLY_SAFE_FIXES flag;
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# * add_finding, add_action and run_and_log, redefined verbatim from the
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# entry script -- they live there rather than in any lib, the same
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# arrangement pacman_hook_stall_harness.sh handles with log_size;
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# * the real log_*/has_cmd helpers, via lib/common.sh.
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#
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# REPORT_FILE points into the throwaway tmpdir, so the probes' report writes
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# never leave the sandbox.
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set -uo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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FIXES_DIR="$(cd "${SCRIPT_DIR}/../.." && pwd)"
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REPO_ROOT="$(cd "${FIXES_DIR}/../.." && pwd)"
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# shellcheck source=lib_test_core.sh
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. "${SCRIPT_DIR}/lib_test_core.sh"
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# shellcheck source=../../../lib/common.sh
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. "${REPO_ROOT}/linux_configuration/lib/common.sh"
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# --- globals and helpers owned by diagnose_arch_performance.sh --------------
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# These four are read by the libs under test, never by this harness, so
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# static analysis cannot see the use; export makes the intent explicit.
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export REPORT_FILE="${TEST_TMPDIR}/report.log"
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# arch_perf_fixes.sh writes a journald drop-in and a systemd unit, and probes
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# two absolute home paths for organize_downloads.sh. All three are behind
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# overrides defaulting to the real locations, because run_all.sh runs UN-jailed
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# in ci_mirror.sh and in CI, where a bind mount would protect nothing.
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export JOURNALD_CONF_DIR="${TEST_TMPDIR}/journald.conf.d"
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export SYSTEMD_UNIT_DIR="${TEST_TMPDIR}/systemd_units"
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export ORGANIZE_SCRIPT_CANDIDATES="${TEST_TMPDIR}/organize_downloads.sh"
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# collect_basics reads the 1-minute load from here; a fixture, not the real
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# /proc/loadavg, or the "quiet machine" case depends on nothing else running.
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export LOADAVG_FILE="${TEST_TMPDIR}/loadavg"
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export APPLY_SAFE_FIXES="false"
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export INSTALL_TOOLS="false"
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declare -a FINDINGS=()
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declare -a ACTIONS=()
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# Verbatim from diagnose_arch_performance.sh.
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add_finding() {
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FINDINGS+=("$1")
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log_warn "$1"
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}
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add_action() {
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ACTIONS+=("$1")
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log_info "$1"
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}
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run_and_log() {
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local header="$1"
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shift
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{
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echo
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echo "=== $header ==="
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"$@" 2>&1 || true
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} >>"$REPORT_FILE"
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}
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# --- external tool stubs ----------------------------------------------------
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_arch_default_stubs() {
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local tool
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for tool in nvidia-smi lspci journalctl systemctl sysctl lsblk sensors \
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free uptime ps top swapon findmnt pacman systemd-analyze; do
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_t_stub "$tool" 'exit 0'
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done
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}
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# arch_reset — start a test group from "nothing has happened yet".
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arch_reset() {
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_t_reset_calls
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FINDINGS=()
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ACTIONS=()
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APPLY_SAFE_FIXES="false"
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INSTALL_TOOLS="false"
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export APPLY_SAFE_FIXES INSTALL_TOOLS
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: >"$REPORT_FILE"
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rm -rf "${JOURNALD_CONF_DIR}" "${SYSTEMD_UNIT_DIR}"
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mkdir -p "${JOURNALD_CONF_DIR}" "${SYSTEMD_UNIT_DIR}"
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rm -f "${ORGANIZE_SCRIPT_CANDIDATES}"
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echo "0.10 0.20 0.30 1/100 1" >"${LOADAVG_FILE}"
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_t_full_path
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_arch_default_stubs
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}
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# _t_report — the report file's contents this round.
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_t_report() {
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cat "$REPORT_FILE" 2>/dev/null || true
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}
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# _t_findings / _t_actions — the recorded findings and actions, one per line.
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_t_findings() {
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printf '%s\n' "${FINDINGS[@]:-}"
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}
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_t_actions() {
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printf '%s\n' "${ACTIONS[@]:-}"
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}
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arch_reset
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