# RE-1 two-run reproducibility analysis

- Run 1: `r1` (2026-09-17T05:13:46Z)
- Run 2: `r2` (2026-09-17T06:33:19Z)
- Frozen tolerance: +/-2% (delta rows are scaled by the run-1 reference-arm value)
- **Decision: capability_gap**

| quantity | run1 | run2 | abs diff | rel diff | pass |
| --- | ---: | ---: | ---: | ---: | --- |
| qwen2.5-0.5b-instruct.file_delta_bytes | -5.96349e+08 | -5.96349e+08 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.file_f16_bytes | 9.94157e+08 | 9.94157e+08 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.file_q4_bytes | 3.97808e+08 | 3.97808e+08 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.hellaswag_delta_pct | 0 | 0 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.hellaswag_f16_pct | 50.5 | 50.5 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.hellaswag_q4_pct | 50.5 | 50.5 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.load_time_delta_ms | 363.22 | -41.32 | 404.54 | 98.972% | **NO** |
| qwen2.5-0.5b-instruct.load_time_f16_ms | 408.74 | 338.83 | 69.91 | 17.104% | **NO** |
| qwen2.5-0.5b-instruct.load_time_q4_ms | 771.96 | 297.51 | 474.45 | 61.460% | **NO** |
| qwen2.5-0.5b-instruct.peak_rss_delta_kib | -553568 | -552756 | 812 | 0.041% | yes |
| qwen2.5-0.5b-instruct.peak_rss_f16_kib | 1.98926e+06 | 1.98835e+06 | 916 | 0.046% | yes |
| qwen2.5-0.5b-instruct.peak_rss_q4_kib | 1.4357e+06 | 1.43559e+06 | 104 | 0.007% | yes |
| qwen2.5-0.5b-instruct.pp512_ratio | 0.804097 | 0.836171 | 0.032074 | 3.989% | **NO** |
| qwen2.5-0.5b-instruct.pp512_tps_f16 | 328.213 | 342.316 | 14.1034 | 4.297% | **NO** |
| qwen2.5-0.5b-instruct.pp512_tps_q4 | 271.991 | 297.589 | 25.5977 | 9.411% | **NO** |
| qwen2.5-0.5b-instruct.ppl_delta | 0.406 | 0.406 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.ppl_f16 | 15.3782 | 15.3782 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.ppl_q4 | 15.7842 | 15.7842 | 0 | 0.000% | yes |
| qwen2.5-0.5b-instruct.tg128_ratio | 2.18655 | 2.78267 | 0.596113 | 27.263% | **NO** |
| qwen2.5-0.5b-instruct.tg128_tps_f16 | 17.4463 | 18.4522 | 1.00584 | 5.765% | **NO** |
| qwen2.5-0.5b-instruct.tg128_tps_q4 | 38.1473 | 51.2688 | 13.1215 | 34.397% | **NO** |
| smollm2-360m-instruct.file_delta_bytes | -4.54963e+08 | -4.54963e+08 | 0 | 0.000% | yes |
| smollm2-360m-instruct.file_f16_bytes | 7.25554e+08 | 7.25554e+08 | 0 | 0.000% | yes |
| smollm2-360m-instruct.file_q4_bytes | 2.70591e+08 | 2.70591e+08 | 0 | 0.000% | yes |
| smollm2-360m-instruct.hellaswag_delta_pct | 2 | 2 | 0 | 0.000% | yes |
| smollm2-360m-instruct.hellaswag_f16_pct | 52.5 | 52.5 | 0 | 0.000% | yes |
| smollm2-360m-instruct.hellaswag_q4_pct | 54.5 | 54.5 | 0 | 0.000% | yes |
| smollm2-360m-instruct.load_time_delta_ms | -46.89 | -77.5 | 30.61 | 12.958% | **NO** |
| smollm2-360m-instruct.load_time_f16_ms | 236.22 | 269.31 | 33.09 | 14.008% | **NO** |
| smollm2-360m-instruct.load_time_q4_ms | 189.33 | 191.81 | 2.48 | 1.310% | yes |
| smollm2-360m-instruct.peak_rss_delta_kib | -421240 | -421676 | 436 | 0.038% | yes |
| smollm2-360m-instruct.peak_rss_f16_kib | 1.14088e+06 | 1.14045e+06 | 436 | 0.038% | yes |
| smollm2-360m-instruct.peak_rss_q4_kib | 719644 | 718772 | 872 | 0.121% | yes |
| smollm2-360m-instruct.pp512_ratio | 0.793546 | 0.738093 | 0.055453 | 6.988% | **NO** |
| smollm2-360m-instruct.pp512_tps_f16 | 395.958 | 412.965 | 17.0068 | 4.295% | **NO** |
| smollm2-360m-instruct.pp512_tps_q4 | 313.97 | 316.701 | 2.73151 | 0.870% | yes |
| smollm2-360m-instruct.ppl_delta | 0.4115 | 0.4115 | 0 | 0.000% | yes |
| smollm2-360m-instruct.ppl_f16 | 14.2338 | 14.2338 | 0 | 0.000% | yes |
| smollm2-360m-instruct.ppl_q4 | 14.6453 | 14.6453 | 0 | 0.000% | yes |
| smollm2-360m-instruct.tg128_ratio | 2.64093 | 2.42945 | 0.211476 | 8.008% | **NO** |
| smollm2-360m-instruct.tg128_tps_f16 | 22.2876 | 27.0699 | 4.7823 | 21.457% | **NO** |
| smollm2-360m-instruct.tg128_tps_q4 | 57.2146 | 64.9436 | 7.72906 | 13.509% | **NO** |

Failing: `qwen2.5-0.5b-instruct.load_time_delta_ms`, `qwen2.5-0.5b-instruct.load_time_f16_ms`, `qwen2.5-0.5b-instruct.load_time_q4_ms`, `qwen2.5-0.5b-instruct.pp512_ratio`, `qwen2.5-0.5b-instruct.pp512_tps_f16`, `qwen2.5-0.5b-instruct.pp512_tps_q4`, `qwen2.5-0.5b-instruct.tg128_ratio`, `qwen2.5-0.5b-instruct.tg128_tps_f16`, `qwen2.5-0.5b-instruct.tg128_tps_q4`, `smollm2-360m-instruct.load_time_delta_ms`, `smollm2-360m-instruct.load_time_f16_ms`, `smollm2-360m-instruct.pp512_ratio`, `smollm2-360m-instruct.pp512_tps_f16`, `smollm2-360m-instruct.tg128_ratio`, `smollm2-360m-instruct.tg128_tps_f16`, `smollm2-360m-instruct.tg128_tps_q4`