Ubuntu is set to enhance graphics performance on Intel-based systems by disabling security mitigations against Spectre attacks. This change is said to potentially improve graphics performance by as much as 20%. Spectre, recognized since 2018, exploits speculative execution enhancements in CPUs, which have led to security vulnerabilities. Recent evaluations led Intel and Canonical's security teams to agree that certain mitigations are no longer necessary for Ubuntu users. The next Ubuntu release, Questing Quokka, is expected to reflect these changes directly in its Kernel, boosting performance while accepting some security risks.
"After discussion between Intel and Canonical's security teams, we are in agreement that Spectre no longer needs to be mitigated for the Ubuntu users on Intel systems."
"Over time, those mitigations have degraded graphics processing performance by as much as 20 percent, a member of the Ubuntu development team recently reported."
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