Re:Assembly Hall of Shame
by Dylan16807 on Saturday August 08, 2026 @05:24PM
(#49226057)
> The USB input lag of 12-30ms
How'd you get that number? USB defaults to polling at 125Hz and a lot of devices go at 1000Hz (or higher). The rest of the pipeline should be a fraction of a millisecond. I guess bad debouncing hardware can add a lot more, but that's far from USB's fault.
Re:Assembly Hall of Shame
by Xirdus on Sunday August 09, 2026 @12:19AM
(#49228404)
It's mostly due to OS-level USB stacks being quite terrible for latency for the most part, especially on Windows. Though I might've misremembered the exact numbers.
How'd you get that number? USB defaults to polling at 125Hz and a lot of devices go at 1000Hz (or higher). The rest of the pipeline should be a fraction of a millisecond. I guess bad debouncing hardware can add a lot more, but that's far from USB's fault.