|
|
|
|
|
|
by jcl
2433 days ago
|
|
|
Something I found surprising: Some AVX2 and AVX-512 instructions consume so much power that Intel chose to have their chips dynamically slow their clock frequency when the instructions are executed. So naively switching to SIMD instructions can not only fail to improve performance, but it can also hurt the performance of unaltered code executed after it -- even unrelated code running on other cores. https://blog.cloudflare.com/on-the-dangers-of-intels-frequen... |
|
|