Unexpected benefit with Ryzen – reducing power for build server
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Unexpected benefit with Ryzen – reducing power for build server
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Re: Unexpected benefit with Ryzen – reducing power for build server
#2Any server-hosting with Ryzen + ecc-ram ?
Re: Unexpected benefit with Ryzen – reducing power for build server
#3Any server-hosting with Ryzen + ecc-ram ?
Re: Unexpected benefit with Ryzen – reducing power for build server
#4180w to 85w is pretty impressive.
I didn't know that compilation was memory speed limited.
Are there any good benchmarks on it?
Anyone have any examples of getting faster memory boosting build speed?
Over the last few years I'd settled into thinking that high speed ram barely did anything. I guess I was wrong!
Re: Unexpected benefit with Ryzen – reducing power for build server
#5Re: Unexpected benefit with Ryzen – reducing power for build server
#6Re: Unexpected benefit with Ryzen – reducing power for build server
#7Calling this "Unexpected" seems like a bit of a stretch. In particular this part:
> Of course, in the server space, we've known for a long time that maximum efficiency occurs with a high number of cores running at lower frequencies, and that efficiency trumps performance on machines with high core counts. But I never considered that the consumer Ryzen CPUs could also benefit from the same thing until now.
makes no sense. This principal applies to all CPUs from the smallest SoCs to the largest server CPUs, why on Earth would you not expect it to apply to desktop CPUs?
You could do the same thing with a 6 core i7 and 2133 memory. Intel CPUs have long supported an adjustable power limit to constrain operating frequency based on power consumption just like he describes for Ryzen.
Re: Unexpected benefit with Ryzen – reducing power for build server
#8180w to 85w is pretty impressive. I didn't know that compilation was memory speed limited. Are there any good benchmarks on it? Anyone have any examples of getting faster memory boosting build speed? Over the last few years I'd settled into thinking that high speed ram barely did anything. I guess I was wrong!
ryzen loves memory speed, more so than Intel. phoronix has benchmarks that you're looking for.
https://www.phoronix.com/scan.php?page=article&item=ryzen-dd...
Re: Unexpected benefit with Ryzen – reducing power for build server
#9Re: Unexpected benefit with Ryzen – reducing power for build server
#10Calling this "Unexpected" seems like a bit of a stretch. In particular this part: > Of course, in the server space, we've known for a long time that maximum efficiency occurs with a high number of cores running at lower frequencies, and that efficiency trumps performance on machines with high core counts. But I never considered that the consumer Ryzen CPUs could also benefit from the same thing until now. makes no se…
You are confusing principle with implementation. Reducing clock speed reduces power usage and you can compensate with more cores is indeed a truth. However, finding that option in consumer hardware has been relatively difficult. That is the surprise indicated.