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How power settings can affect application latency
- donavanm 14y agoThe CPU can change power states in 10s of microseconds. If your core is constantly bouncing between C states expect it to add a couple hundred microseconds of latency. And if you have a modern linux kernel try disabling the intel_idle driver. intel_idle will disregard bios settings and very aggressively set the C state. This kills applications that high rps/low latency. I'd love to hear someone try and justify that behavior.