docs: record Qwen MLX benchmark results

benchmarks/inference/results/20260831T121855Z/summary.json

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+[
+  {
+    "runtime": "ollama",
+    "model": "qwen3.8:27b-mxfp8",
+    "concurrency": 1,
+    "requests": 5,
+    "successes": 5,
+    "failures": 0,
+    "ttft_s_mean": 0.296576766599901,
+    "ttft_s_p50": 0.25913220801157877,
+    "ttft_s_p95": 0.5828672000090591,
+    "total_s_mean": 5.365511283196975,
+    "total_s_p50": 5.271547083975747,
+    "total_s_p95": 5.7278931244160045,
+    "prompt_tps_mean": 1579505.471393669,
+    "prompt_tps_p50": 423.79232394227944,
+    "prompt_tps_p95": 4040897.1304585882,
+    "decode_tps_mean": 22.074969591997284,
+    "decode_tps_p50": 22.737809958094928,
+    "decode_tps_p95": 26.029319910172887,
+    "request_tps_mean": 21.326224707051917,
+    "request_tps_p50": 22.22186664913243,
+    "request_tps_p95": 23.99720340744444,
+    "aggregate_output_tps_mean": 21.3238226965937,
+    "aggregate_output_tps_p50": 22.217896609947385,
+    "aggregate_output_tps_p95": 23.99517949790225
+  },
+  {
+    "runtime": "ollama",
+    "model": "qwen3.8:27b-mxfp8",
+    "concurrency": 4,
+    "requests": 20,
+    "successes": 20,
+    "failures": 0,
+    "ttft_s_mean": 9.275126714701765,
+    "ttft_s_p50": 9.394405500497669,
+    "ttft_s_p95": 18.583187756550615,
+    "total_s_mean": 15.170045258343453,
+    "total_s_p50": 14.90246445898083,
+    "total_s_p95": 24.08200175591046,
+    "prompt_tps_mean": 7067890.927047749,
+    "prompt_tps_p50": 6856543.23965746,
+    "prompt_tps_p95": 11845450.362447295,
+    "decode_tps_mean": 19.377795978907,
+    "decode_tps_p50": 19.039894932933024,
+    "decode_tps_p95": 22.784262218881533,
+    "request_tps_mean": 10.048677383124767,
+    "request_tps_p50": 7.0969869715907645,
+    "request_tps_p95": 21.739669344814565,
+    "aggregate_output_tps_mean": 19.35053924595546,
+    "aggregate_output_tps_p50": 20.179477104341757,
+    "aggregate_output_tps_p95": 20.562657512957074
+  }
+]