title: the perf line of the first rollout
source: manuals/miles-101/capture/gpu/out-gb10/plain-first-step.log
lines: 4-4
lang: text
note: Read the answer lengths, the zero_std counts, the truncated ratio and the rollout time.
---
(RolloutExecutor pid=2545) [2026-10-17 15:56:15.547 rollout_executor] metrics.py:94 - perf 0: {'rollout/raw_reward_unfiltered': 0.62890625, 'rollout/num_training_samples': 256, 'rollout/episode_raw_reward': 0.62890625, 'rollout/episode_response_length/mean': 739.92578125, 'rollout/episode_response_length/median': 759.5, 'rollout/episode_response_length/max': 1024, 'rollout/episode_response_length/min': 259, 'rollout/episode_total_response_length/mean': 739.92578125, 'rollout/response_len/mean': 739.92578125, 'rollout/response_len/median': 759.5, 'rollout/response_len/max': 1024, 'rollout/response_len/min': 259, 'rollout/zero_std/count_1': 7, 'rollout/zero_std/count_0': 3, 'rollout/zero_std/all_zero_percentage': 0.09375, 'rollout/zero_std/all_one_percentage': 0.21875, 'rollout/prefix_cache_hit_rate': 0.24518696778970753, 'rollout/avg_cached_tokens_per_sample': 20.6953125, 'rollout/repetition_frac': 0.0, 'rollout/truncated_ratio': 0.3203125, 'rollout/weight_version/mean': 1.0, 'rollout/weight_version/median': 1.0, 'rollout/weight_version/max': 1, 'rollout/weight_version/min': 1, 'rollout/weight_version/mixed_version_ratio': 0.0, 'perf/rollout_time': 61.951833724975586, 'perf/tokens_per_gpu_per_sec': 3057.5527568869334, 'perf/longest_sample_tokens_per_sec': 16.52896998248462, 'perf/effective_tokens_per_gpu_per_sec': 3057.5527568869334, 'perf/longest_effective_sample_tokens_per_sec': 16.52896998248462}
