4 ms·

Just an anecdote but I use GrapheneOS on my phone. It's a security focused OS based on Android AOSP with in particular a secure memory allocation function. The

Just an anecdote but I use GrapheneOS on my phone. It's a security focused OS based on Android AOSP with in particular a secure memory allocation function. The whole OS feels much slower than regular Google Android, Osmand (map app) is barely usable (on a Pixel 4XL which isn't a low end phone by any means). So I don't think we can discount how much slower a device will be with a more secure OS. It might be invisible on desktops, but certainly not on mobile.

jonway 5y ago
If the secure OS had the same development velocity as the OEM profit OS, the secure OS would be much better optimized than it currently is and likely much much more secure, too. Android and iOS are optimized in general and for example Google or Samsung also optimize and distribute it for specific hardware. GrapheneOS is not well funded and has little influence in hardware development. The development of Graphene from AOSP is pretty much guaranteed to de-optimize it in the short term. While there is little about mobile that would cause a secure OS to be noticably slower, much less mature software with many fewer deployments is expectedly less optimized.