wehub-resource-sync
83 lines
3.1 KiB
Bash
Executable File
83 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# bin/cold-start-bench.sh — measure OmniRoute cold-start against the target
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# budgets (container start → HTTP listening ≤ 800 ms; first warm
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# TTFB ≤ 200 ms). Boots the server on a throwaway port, times until
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# /api/health/ping answers 200, measures a warm request, and reports PASS/FAIL.
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set -euo pipefail
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SCRIPT_NAME="cold-start-bench"
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source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/_ops-common.sh"
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usage() {
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cat <<'EOF'
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Usage: bin/cold-start-bench.sh [--port <n>] [--start-cmd "<cmd>"] [--url <base>]
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[--listen-budget-ms <n>] [--ttfb-budget-ms <n>] [-h|--help]
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Boots OmniRoute, times cold-start to the first /api/health/ping 200, measures
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warm TTFB, and compares against the cold-start budgets
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(listen ≤ 800 ms, TTFB ≤ 200 ms). Exits non-zero if a budget is exceeded.
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--url benches an already-running server instead of booting one (skips the boot
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timing; only TTFB is measured).
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EOF
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}
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PORT="${PORT:-21987}"
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START_CMD=""
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BASE_URL=""
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LISTEN_BUDGET_MS=800
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TTFB_BUDGET_MS=200
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while [ $# -gt 0 ]; do
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case "$1" in
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--port) PORT="${2:?--port needs a value}"; shift 2 ;;
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--start-cmd) START_CMD="${2:?--start-cmd needs a value}"; shift 2 ;;
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--url) BASE_URL="${2:?--url needs a value}"; shift 2 ;;
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--listen-budget-ms) LISTEN_BUDGET_MS="${2:?}"; shift 2 ;;
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--ttfb-budget-ms) TTFB_BUDGET_MS="${2:?}"; shift 2 ;;
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-h | --help) usage; exit 0 ;;
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*) ops_die "unknown argument: $1 (see --help)" ;;
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esac
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done
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ops_require_cmd curl
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now_ms() { date +%s%3N; } # ms since epoch (GNU date / Linux)
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ping_ok() { curl -fsS -o /dev/null --max-time 2 "$1/api/health/ping" 2>/dev/null; }
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SERVER_PID=""
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cleanup() { [ -n "$SERVER_PID" ] && kill "$SERVER_PID" 2>/dev/null || true; }
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trap cleanup EXIT
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if [ -n "$BASE_URL" ]; then
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ops_log "benching already-running server at $BASE_URL (boot timing skipped)"
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listen_ms=""
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else
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BASE_URL="http://127.0.0.1:$PORT"
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[ -n "$START_CMD" ] || START_CMD="npm start -- --port $PORT"
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ops_log "booting: $START_CMD"
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start_ms="$(now_ms)"
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# shellcheck disable=SC2086
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PORT="$PORT" $START_CMD >/tmp/omniroute-coldstart.log 2>&1 &
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SERVER_PID="$!"
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deadline=$(($(now_ms) + 30000))
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until ping_ok "$BASE_URL"; do
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kill -0 "$SERVER_PID" 2>/dev/null || ops_die "server process exited during boot (see /tmp/omniroute-coldstart.log)"
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[ "$(now_ms)" -gt "$deadline" ] && ops_die "server did not answer /api/health/ping within 30s"
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sleep 0.05
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done
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listen_ms=$(($(now_ms) - start_ms))
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fi
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ping_ok "$BASE_URL" || ops_die "server at $BASE_URL is not answering /api/health/ping"
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ttfb_ms="$(curl -fsS -o /dev/null -w '%{time_starttransfer}' "$BASE_URL/api/health/ping" | awk '{printf "%d", $1 * 1000}')"
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fail=0
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if [ -n "$listen_ms" ]; then
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echo "cold-start (start → listening): ${listen_ms} ms (budget ${LISTEN_BUDGET_MS} ms)"
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[ "$listen_ms" -le "$LISTEN_BUDGET_MS" ] || { echo "FAIL: listen budget exceeded"; fail=1; }
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fi
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echo "warm TTFB: ${ttfb_ms} ms (budget ${TTFB_BUDGET_MS} ms)"
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[ "$ttfb_ms" -le "$TTFB_BUDGET_MS" ] || { echo "FAIL: TTFB budget exceeded"; fail=1; }
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[ "$fail" -eq 0 ] && echo "PASS: within cold-start budgets"
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exit "$fail"
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