3 ms·
I might be misunderstanding you, but performance isn't in the ISA, it's in the implementation. In fact, the x86 ISA is the best example for this: It's really di
by adwn 7y ago
I might be misunderstanding you, but performance isn't in the ISA, it's in the implementation. In fact, the x86 ISA is the best example for this: It's really difficult to get competitive performance out of an ISA designed in the 70s, yet billions upon billions of USD in R&D and optimization make it work.
- ecnahc515 7y agoThe ISA matters, otherwise we wouldn't care about SIMD. If your ISA is missing SIMD functionality, then it doesn't matter how good your implementation is, it will be slower than an implementation of an ISA that supports SIMD when it comes to anything that can leverage SIMD.