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No - but that just means that Intel shouldn’t do this at all. Either don’t support stuff like avx and avx2 in the big core by disconnecting those blocks or supp
by CountSessine 6y ago
No - but that just means that Intel shouldn’t do this at all. Either don’t support stuff like avx and avx2 in the big core by disconnecting those blocks or support a slow microcode version of avx and avx2 in the little cores. Supporting different extensions for a CPU used with modern preempting OS’s doesn’t make any sense.
- kllrnohj 6y ago> Either don’t support stuff like avx and avx2 in the big core by disconnecting those blocks That's partly what they did. From the article: "One thing we can confirm in advance – the Sunny Cove does not appear to be AVX-512 enabled." Maybe they also fused off AVX & AVX2 support in the Sunny Cove core as well, we'll see. And disabling AVX in cores that otherwise support it is already a common thing - see the Pentium & Celeron lineups that Intel currently sells. They don't have AVX/AVX2, even though the cores inside them definitely could offer it.