Trading off safety and performance in the kernel

Posted May 14, 2015 23:56 UTC (Thu) by mjg59 (subscriber, #23239)
In reply to: Trading off safety and performance in the kernel by dlang
Parent article: Trading off safety and performance in the kernel

Shallow C states are basically free on modern CPUs. Deeper ones will drop cache, but that's basically irrelevant in the case we're discussing.