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I think in the long term, we'll get away from the concept of general purpose processing units towards some units that have the right architecture and wear preve
by est31 6y ago
I think in the long term, we'll get away from the concept of general purpose processing units towards some units that have the right architecture and wear prevention to execute untrusted code and others which require less power but wear out more quickly. There will be domains for all those types of computing.
- Kye 6y agoThat already happens, but they always seem to rejoin the CPU. GPUs are headed that way. Math coprocessors went back a long time ago. https://en.wikipedia.org/wiki/Coprocessor https://en.wikipedia.org/wiki/Coprocessor
- est31 6y agoYou can have the CPU share the die with the secure cores, but you'd need to figure out a lot of complexity, like dealing with memory access pattern leakage due to a shared memory bus. The less things you share, the less the performant parts need to care about security, and the secure parts need to care about performance.