3 ms·

80ms latency on a Gameboy? That's 10fps. I call shenanigans.

• javajosh 9y ago
  Review the difference between latency and throughput. If you think of the machine as producing a sequence of pictures, and your input as affecting those pictures, it takes time for that input to show up. If you have a hypothetical machine that produces 1000 pictures per second then you can count the pictures between input and change and get the latency in ms.
  • mwkaufma 9y ago
    GBA ran at 59.97fps with input applied next-frame. That's 16.6ms latency - much less than what OP "measured"
    • javajosh 9y ago
      Well, that is a mystery. It's possible Dan is in error. If so, I'm sure he'd like to correct it. I speculate that it's possible to measure a different value. First, it may include key travel. Second, a given program may choose to sit on an input for more than one frame (perhaps he picked a "bad" game for this test). Anyway, I highly suggest reaching out to him, because I agree this is an interesting discrepancy.