April 25, 2026
Frames vs feelings
How to Implement an FPS Counter
Gamers feud over the “real” FPS: average vs dips vs vibes
TLDR: The guide says: measure frames over the last second, not one frame or a fixed count. Comments erupted over what to show—averages, medians, worst dips, or percentiles—and many argue the number should reflect what players actually feel and even drive game timing to avoid micro‑stutter.
An innocent “how to show frames per second” explainer just triggered a full-on comment brawl. The post’s core advice is simple: don’t base the number on one frame or a fixed count of frames; instead, measure everything that happened in the last second with a precise timer. But the community had thoughts—big ones. The hottest take? FPS isn’t a speedometer, it’s a lie detector. If your number says 100 but it stutters, players only feel the hiccups, not the average.
Commenters split into factions. One camp cheered percentiles—show the typical case plus those nasty 1% and 0.1% lows—to expose dropped frames and stutters. Another group argued for the median (the middle value) to filter wild spikes, while data purists defended the simple average. A pragmatist squad insisted the last-frame number still matters for spotting periodic spikes on graphs. Meanwhile, performance monks warned: use your measured frame time to drive animation and logic too or micro‑stutter will eat your lunch. Someone even proposed color‑changing counters that panic when dips happen, because “perceived performance” is what players actually experience. Bonus nerd fight: queues and windows can “drop” a frame at the edges, changing how fast the number recovers. In short: the tutorial was tidy; the comments? Chaos—glorious, educational chaos. See the original note from the author’s postmortem for backstory.
Key Points
- •FPS should reflect recent performance as an aggregate measure, not just a single frame.
- •Calculating FPS from only the latest frame is misleading because it captures only transient frame times.
- •Averaging over a fixed number of frames is time-inconsistent since the window length varies with performance.
- •Use a fixed-duration rolling window (e.g., last one second) to compute FPS for consistent, meaningful results.
- •Employ precise timers to accurately measure frame durations and compute FPS.