FWIW, I haven’t noticed a difference in battery life on iOS. I’m using an iPhone XS, iOS 12.1.4, VPN is always on. So maybe something in your setup? Sent from ProtonMail Mobile On Fri, Mar 1, 2019 at 3:08 AM, Kalin KOZHUHAROV wrote: > On Fri, Mar 1, 2019 at 11:03 AM kolargol wrote: >> I am testing WG on varius OSes and devices and I have noted severe battery drain on iOS (12.2, iPhone 8). Typically battery drops 40% during night-time (that is 7 hours of inactivity on the phone) when WireGuard is engaged. >> > Compared to how much during night without activated WireGuard? > >> Is this some kind of known issue? I did not had chance to test previous iOS version without SIMD ChaCha20 support so i cannot tell if it is becouse of the last update. >> >> Anything i can do to track issue here? >> > Is there anything using the interface, or just wg keep-alive? > May be try to change the keep-alive to a longer period. > Also (and I have 0 experience with iOS), a keep-alive packet my wake > up the phone, and let it stay awake for some longer-than-needed > interval (e.g. 5 minutes). > Try to have a look at what actually eats the battery: CPU, radio, screen? > > Cheers, > Kalin. > _______________________________________________ > WireGuard mailing list > WireGuard@lists.zx2c4.com > https://lists.zx2c4.com/mailman/listinfo/wireguard