Vsync and input lag

[Sgt. Pepper]

Can anyone estimate that how much does using Vsync increase input lag in Dolphin? I can't play without it, screen tearing was far too noticeable.
Usually I force Vsync directly from graphics drivers, is that a better solution? I've enabled Vsync and triple buffering for dolphin.exe in Nvidia Control Panel. Vertical sync isn't currently enabled in Dolphin program.

[Kurausukun]

I usually enable Vsync via the control panel even if the program has an option--it usually works just as well if not better. Vsync should not introduce any input lag unless the game is running at less than 100% (at least, I'm pretty sure that's how it works). I sure haven't noticed any, and I'm doing the exact same thing as you--Vsync and triple buffering via Nvidia Control Panel. Are you noticing any input lag?

[Smashbro29]

So you'd recommend using the control panel over Dolphin's built in system?