How CPUs do Out Of Order Operations - Computerphile
110K views · May 23, 2024 · Education
Comments · 258
@momomi104 · 2 years ago
A better example than a sausage factory, is a film production, all the scenes are filmed out of order, based on locations, crew availabilty etc.. <br>But as long as the editing is ordering the scenes in the script's order (program) the result for the viewer will be acceptable
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@MattGodbolt · 2 years ago
I see folks are speculating on the topic already ;)
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@RKelleyCook · 2 years ago
Love me the robots where W == waiting and W == working.
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@Aaron_Nonymous · 2 years ago
It's crazy how Tomasulo's algorithm for out of order execution was was first used in the IBM System/360 Model 91 released in 1967, predating the integrated circuit.
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@DubioserKerl · 2 years ago
Hang on, I know that logo on the shirt.... is that...? Yes, it IS Godbolt!
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@gojohnniegogo · 2 years ago
Bonus points for a Winamp reference. Topical too since the source code is being released in September!
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@giveaway4002 · 2 years ago
please, please more cpu videos....
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@jaffarbh · 2 years ago
Simply brilliant. I would highly suggest covering Intel's "Itanium" CPU, and why it went awfully wrong.
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@Darkknight512 · 2 years ago
This really kicks the llamas ass.
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@jeromethiel4323 · 2 years ago
Winamp, it whips the llamas ass! ^-^ What a blast from the past.
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@unvergebeneid · 2 years ago
<a href="https://www.youtube.com/watch?v=jNC9LPc3BI0&t=871">14:31</a> "Honey, why are you shouting'Pee! Pee!' into your phone?" <br>"No, mum! I'm shouting 'p' <i>at</i> my phone."<br>"Well whatever it is you do with pee and your phone, it is rather odd, isn't it, and I'd prefer for you to do it in your room."
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@unvergebeneid · 2 years ago
The times where a sqrt would take 100 cycles are long gone. These days it's more on the order of 16-20 cycles. Still slow compared to a multiply or add but in the ballpark of a division.
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