FPS Checker

FPS Checker provides objective metrics for frame timing across rendering pipelines. It collects raw frame_times_ms from live capture or pre-recorded data and computes key indicators such as average FPS, min/max FPS, and tail latencies like 1% and 0.1% lows. The tool is useful for developers benchmarking engines, QA teams validating optimizations, and hardware testers comparing configurations. It favors portability, supports variable resolutions and refresh rates, and outputs both machine-readable data and human-friendly summaries to guide optimization decisions.
Data handling is deterministic: each frame contributes a single timestamp or delta, and the system validates ranges, discards outliers if necessary, and guards against missing data. The core calculations convert timing samples to FPS using straightforward formulas and produce percentile-based insights that reveal stutter and tail latency. Advanced users can request per-scene breakdowns and compare CPU vs GPU timings if such data is provided. The tool ensures consistent unit usage (milliseconds and frames per second) and exports results in JSON and CSV formats for integration with CI pipelines.
Use cases span game development, performance QA, streaming setup verification, and hardware benchmarking. By standardizing metrics across runs and configurations, FPS Checker helps teams identify regressions, verify optimization wins, and communicate results to stakeholders.