4 ms·
I was going to joke about Intel "discovering the big.LITTLE architecture" until you said different instruction sets. It will be interesting to hear how they hop
by NortySpock 6y ago
I was going to joke about Intel "discovering the big.LITTLE architecture" until you said different instruction sets. It will be interesting to hear how they hope that will work out...
- est31 6y agoI think in this instance "instruction set" means "set of supported instructions" instead of "architecture".
- CountSessine 6y agoSure but that’s still a nuisance from the point of view of OS scheduling. You can’t transparently move a process from a big core to a little core or vice versa the way you can with big.little.
- mlyle 6y agoNo, but it can be a small nuisance: you can leave a process eligible to run on any core until it faults for an illegal instruction; then you pin it to the big core.
- rkangel 6y agobig.LITTLE kind of is different instruction sets though - full ARM vs thumb.
- wtallis 6y agoThe full ARM vs Thumb split never had anything to do with big.LITTLE, and was dropped with AArch64.
- CountSessine 6y agoARMv7 and ARMv 8 are full-on thumb2. Big.little has nothing to do with ARM vs thumb.