satellite-provider/_docs/06_metrics/perf_2026-06-26_cycle12.md

Performance Report — Cycle 12

Date: 2026-06-26 Cycle: 12 (AZ-1124 PT-10 gRPC stream perf) Runner: scripts/run-performance-tests.sh (default: PERF_REPEAT_COUNT=20, PERF_UAV_BATCH_SIZE=10, PERF_PT10_SLOW_MS=50) Stack: docker compose -f docker-compose.yml -f docker-compose.perf.yml up -d --build API_URL: https://localhost:18980 Verdict: PASS (11/11 thresholds; exit 0)

PT-10 (new — AZ-1124)

Metric	p50	p95	Threshold	Verdict
first_batch_ms	43 ms	48 ms	≤ 30000 ms	Pass
total_stream_ms	43 ms	48 ms	≤ 120000 ms	Pass
slow-consumer	—	—	completes without DeliveryError	Pass

Warm compose volume — iterations 2–20 served cached tiles; iteration 1 cold path 150 ms first batch.

REST scenarios (PT-01..PT-08)

All passed on warm volume. Notable: PT-07 cold p95=106 ms, warm p95=65 ms (warm faster).

Step 15 fix applied during gate

First run failed PT-10: CreateFromPemFile(api.crt) rejected cert-only PEM on host-side gRPC channel. Fixed in GrpcTestHelpers.CreateChannel — load CA via X509Certificate2.CreateFromPem(File.ReadAllText(...)). Re-run green.