3 ms·
Nit: most 256-bit AVX2 integer instructions (exception: multiply) do not trigger downclocking.
by chrchang523 6y ago
Nit: most 256-bit AVX2 integer instructions (exception: multiply) do not trigger downclocking.
- quotemstr 6y agoIs there a central list of these safe instructions?
- chrchang523 6y agoI currently follow the guidance in this Stack Overflow answer by Travis Downs: https://stackoverflow.com/a/56861355/3245034 https://stackoverflow.com/a/56861355/3245034 . I'm not aware of a more central source of truth.
- MaxBarraclough 6y agoThis turned up over here too. [0] Apparently Intel's CPUs are more inclined to downclock than AMD's. [0] https://news.ycombinator.com/item?id=23810654 https://news.ycombinator.com/item?id=23810654