Re: Why did Intel change his static branch prediction mechanism over these years?

2018-08-15 Thread 2016 quekong
for some reasons, but not this, One somewhat contrived example: if most people of a country are blind, then the government forbid the car to provide a safe road, may a better choice is asking the blind people go to hospital to cure the eye. Thanks again. 2018-08-15 17:26 GMT+08:00, Florian We

Why did Intel change his static branch prediction mechanism over these years?

2018-08-14 Thread 2016 quekong
( I don't know if it's allowed to ask such question, if not, please remind me. ) I know Intel implemented several static branch prediction mechanisms these years: * 80486 age: Always-not-take * Pentium4 age: Backwards Taken/Forwards Not-Taken * PM, Core2: Didn't use static prediction, ra