Managing CPU security mitigations has always been one of those balancing acts that systems administrators live and breathe but rarely get applause for. After all, striking the right trade-off between performance and protection is easier said than done, especially when speculative execution vulnerabilities''those infamous flaws with names like Spectre and Meltdown''linger in the mix.

Source: Fine-Tuning Security with Attack Vector Controls in Linux Kernel 6.17-rc2