How to test mouse polling activity
- Move the pointer continuously inside the large test area.
- Use smooth circles or side-to-side motion for several seconds.
- Watch the rolling event count rather than one instant peak.
- Repeat with different mouse polling settings if your mouse software supports them.
- Compare the same browser and movement pattern when testing USB ports or settings.
What the polling number means
This page counts browser-delivered pointer movement events. It can help compare configurations, but it is not guaranteed to equal the mouse's low-level USB report rate.
Browser event coalescing, display refresh, operating-system scheduling, pointer acceleration and background load can all change the observed number.
How to test mouse buttons
Click the stage with left, middle and right buttons. The counters should increase only for the button you actually press. Hold a button briefly to confirm the active highlight appears and releases cleanly.
The click interval is the time between the two most recent presses. It is a timing aid, not a switch debounce certification test.
Useful symptoms to investigate
- One physical click produces multiple browser clicks repeatedly.
- A button stays active after release.
- A specific button never registers inside the test area.
- Movement event rate changes drastically between identical repeated samples.
- Wheel direction or steps behave inconsistently.
Mouse polling and click FAQ
Why is my result lower than 1000 Hz?
A 1000 Hz mouse can still produce a lower browser-visible event count because the webpage sees a higher-level input stream, not necessarily every raw USB report.
Can this diagnose double-click faults?
It can show repeated click events and timing, but browser event timing alone is not a certified switch-debounce measurement. Repeat suspicious behavior and compare another computer if possible.
Does pointer speed affect the result?
Yes. Very small or slow motion can produce fewer movement events. Use continuous motion when comparing samples.
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