"The kernel test robot reports a 2.6 percent improvement in the per_thread_ops benchmark," Torvalds wrote in the commit. This improvement indicates a significant enhancement in Linux's multithreaded performance due to the recent code commits.
"Defending against these sorts of attacks is a necessary evil. Running web servers and the like is a primary usage of Linux, and such boxes must be locked down against every conceivable attack - even at the cost of disabling performance-enhancing features." This reflects the ongoing balancing act between performance and security.
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