Ubuntu disables Intel GPU security mitigations, promises 20% performance boost
Ubuntu users could see up to a 20-percent boost in graphics performance on Intel-based systems under a change that will turn off security mitigations for blunting a class of attacks known as Spectre. Spectre, you may recall, first came to public notice in 2018. Spectre attacks are based on the observation that performance enhancements built into modern CPUs open a side channel that can leak secrets a CPU is processing. The performance enhancement, known as speculative execution, predicts future