iOS WG Battery Life

[Mark Finzel]

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?

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On Fri, Mar 1, 2019 at 3:08 AM, Kalin KOZHUHAROV <me.kalin at gmail.com> wrote:

> On Fri, Mar 1, 2019 at 11:03 AM kolargol <kolargol at protonmail.com> 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.
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