4 ms·
RISC-V is the most recent manifestation of the RISC insight -- and long term the most important one, mostly because it's non-proprietary and designed from the s
by brucehoult 2y ago
RISC-V is the most recent manifestation of the RISC insight -- and long term the most important one, mostly because it's non-proprietary and designed from the start to have room to grow and evolve.
> if anything over the past 30 years have shown CISC won performance computing. That is everything from PC, Smartphone or all the way to server.
That is simply untrue. Smartphones and tablets are fully (or 99.99%) running on RISC -- Arm64 is a far more pure RISC than the original Arm32 was. Apple is doing great with its RISC-based M1/2/3/4 Macs.
Amazon introduced the first low end Graviton instances (same cores as a Raspberry Pi 4, but with up to 16 cores) in November 2018 and by 2022 they were reported to make up 20% of AWS capacity. They are quite likely 40% by now. Something like 90% of the top 1000 AWS customers use at least some Graviton instances.
> We need RISC for embedded and stay embedded.
Who is "we"?
And .. waaaaay too late for that.
> Right tools for the right job. We need to stop the constant ideological / fashion / hype fighting in tech space and more good old fashioned proper engineering.
Absolutely.
Which is why many of the best and most famous engineers in the business are now at RISC-V companies.
- ksec 2y ago>Arm64 is a far more pure RISC I guess we have a very different definition of RISC. Edit: Actually found the argument [1] back then. Time flies. These debate has been going on for years if not decades so I wont go and rehash everything. There was another long thread on Realworldtech as well where Linus said something similar. But I cant find it right now. [1] https://news.ycombinator.com/item?id=19327276 https://news.ycombinator.com/item?id=19327276
- brucehoult 2y agoYou can find any number of clueless people arguing about any subject. I follow the definition of people such as Dave Patterson (who invented the terms "RISC" and "CISC"), John Hennessey, and John Mashey. Here is a 1995 reposting of something Mashey first posted in this much detail in I think 1991, with proto-versions going back to at least 1988: https://yarchive.net/comp/risc_definition.html https://yarchive.net/comp/risc_definition.html This post is regarded in the CPU designer industry as pretty much definitive.