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SiFive Introduces RISC-V Linux-Capable Multicore Processor

posted by Fnord666 on Monday February 05 2018, @03:16AM   Printer-friendly
from the HiFive-Unleashed dept.

MrPlow writes:

Submitted via IRC for TheMightyBuzzard

Slowly but surely, RISC-V, the Open Source architecture for everything from microcontrollers to server CPUs is making inroads in the community. Now SiFive, the major company behind putting RISC-V c...

That's damned nifty but at a grand for a 1.5GHz system, I don't see them selling that many to consumers.

Source: https://hackaday.com/2018/02/03/sifive-introduces-risc-v-linux-capable-multicore-processor/

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  • (Score: 2) by Wootery on Monday February 05 2018, @11:37AM

    by Wootery (2341) on Monday February 05 2018, @11:37AM (#633238)

    operations per second

    Too reductionist. It doesn't do to ignore caching and branch-prediction. Real-world performance is the only meaningful measure of real-world performance.

    the more direct (and thus simpler) RISC architecture allows to do more operations in parallel by utilizing the resources that other processors use for interpreting the instructions.

    Computer architectural matters aren't so easily reduced. I believe the major CPU architecture most similar to RISC-V is MIPS. MIPS does ok, and like ARM it reliably outperforms Intel on power-per-watt (at least it did last I checked), but RISC isn't a magic sauce. Design is hard, and ISA differences aren't everything.

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