What every programmer should know about how CPUs work [video]

#1

Post by bschne » Thu, Jul 03, 2025, 8:29 PM UTC

What every programmer should know about how CPUs work [video]
youtube.com

Re: What every programmer should know about how CPUs work [video]

#2

Post by mikewarot » Fri, Jul 04, 2025, 2:49 PM UTC

So that's what happened in the past 40 years of Moore's law since I wrote MS-DOS Assembler programs. Optimization of serial instructions like that is amazing.

Re: What every programmer should know about how CPUs work [video]

#3

Post by hnthrow90348765 » Mon, Jul 07, 2025, 10:38 AM UTC

A fine addition to my "every programmer should know" collection that I never use because I only ship CRUD apps

Re: What every programmer should know about how CPUs work [video]

#4

Post by amelius » Mon, Jul 07, 2025, 10:54 AM UTC

Waiting for the GPU version.

Re: What every programmer should know about how CPUs work [video]

#5

Post by pjc50 » Mon, Jul 07, 2025, 11:24 AM UTC

.. by Matt Godbolt, of Compiler Explorer. 45m long. If you're evaluating whether to bother with video.

Re: What every programmer should know about how CPUs work [video]

#6

Post by shirajg » Mon, Jul 07, 2025, 11:59 AM UTC

amelius wrote: post #4

Waiting for the GPU version.

https://m.youtube.com/watch?v=h9Z4oGN89MU

Re: What every programmer should know about how CPUs work [video]

#7

Post by rohith2506 » Mon, Jul 07, 2025, 11:59 AM UTC

For the curious, I would recommend ( https://products.easyperf.net/perf-book-2 )

Re: What every programmer should know about how CPUs work [video]

#8

Post by cmrdporcupine » Mon, Jul 07, 2025, 12:01 PM UTC

pjc50 wrote: post #5

.. by Matt Godbolt, of Compiler Explorer. 45m long. If you're evaluating whether to bother with video.

Thank you, the headline didn't interest me until I saw you mention that name.

Re: What every programmer should know about how CPUs work [video]

#9

Post by IshKebab » Mon, Jul 07, 2025, 12:03 PM UTC

shirajg wrote: post #6

amelius wrote: post #4

Waiting for the GPU version.

https://m.youtube.com/watch?v=h9Z4oGN89MU

That's a basic high level overview for a general audience, not a microarchitecture explanation for programmers.

Re: What every programmer should know about how CPUs work [video]

#10

Post by csmantle » Mon, Jul 07, 2025, 12:06 PM UTC

The Matt Godbolt behind godbolt.org? Wow.