Search and scoring

Choose grid for exhaustive small spaces, random for a bounded sample, or tpe for guided exploration. Random and TPE searches do not execute the same resolved configuration twice.

optimization:
  maximize: output_tokens_per_second
  sampler: tpe
  trials: 20
  seed: 42

maximize names the metric used to rank trials. Direction is inferred: the declared metric is always maximized. For each named benchmark, vTune averages the eligible workload metric values, takes the median when it was repeated, then averages named benchmark scores into the trial score. A workload with more than half of requests errored or incomplete is excluded; a trial without an eligible workload is not ranked.

Grid evaluates every unique configuration and is best for small spaces. TPE uses completed trial results to choose promising configurations, so it is the better default for larger spaces where exhaustive Grid search is impractical.

The fixed server configuration runs first as the baseline. The report shows the best observed configuration and its difference from that baseline.

TPE state is persisted in the run's SQLite study. Runs themselves remain immutable: a retry creates a new linked run instead of rewriting history.