AMD Rome Second Generation EPYC Review: 2x 64-core Benchmarked
by Johan De Gelas on August 7, 2019 7:00 PM ESTLegacy: 7-zip
While standalone compression and decompression are not real world benchmarks (at least as far as servers go), servers have to perform these tasks as part of a larger role (e.g. database compression, website optimization). With that said, we suggest you take these benchmarks with a large grain of salt, as they are not really important in grand scheme of things. We still use 7zip 9.2, so you can compare with much older results.
Compression on modern cores relies almost solely on cache, memory latency, and TLB efficiency. This is definitely not the ideal situation for AMD's EPYC CPU, but the EPYC 7742 scales very well, offering 77% higher performance than Naples. That is better than expected scaling.
Decompression relies on less common integer instructions (shift, multiply). AMD's Zen2 core handles these instructions even better because doubling the cores results in no less than 127% (!) better performance.
Even though this benchmark is not that important, it is nevertheless impressive how AMD engineering made this graph look. Never have we seen AMD dominating benchmarks by such a wide margin.
Before people accuse us of choosing a benchmark that shows AMD in the best light, consider this benchmark as one of our synthetic tests more than anything else, designed to showcase core execution port potential. It is not really indicative of any real-world performance, but acts as a synthetic for those that have requested this data.
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bobdvb - Thursday, August 8, 2019 - link
I think a four compute node, 2U, dual processor Epyc Rome combined with Mellanox ConnextX-6 VPI, should be quite frisky for HPC.JohanAnandtech - Sunday, August 11, 2019 - link
"One thing I wish they would have done is added quad socket support. "Really? That is extremely small niche market with very demanding customers. Why would you expect AMD to put so much effort in an essentially dead end market?
KingE - Wednesday, August 7, 2019 - link
> While standalone compression and decompression are not real world benchmarks (at least as far as servers go), servers have to perform these tasks as part of a larger role (e.g. database compression, website optimization).Containerized apps are usually delivered via large, compressed filesystem layers. For latency sensitive-applications, e.g. scale-from-zero serverless, single- and lightly-threaded decompression performance is a larger-than-expected consideration.
RSAUser - Thursday, August 8, 2019 - link
Usually the decompression overhead is minimal there.KingE - Thursday, August 8, 2019 - link
Sure, if you can amortize it over the life of a container, or can benefit from cached pulls. Otherwise, as is fairly common in an event-based 'serverless' architecture, it's a significant contributor to long-tail latency.Thud2 - Wednesday, August 7, 2019 - link
Will socket-to-socket IF link bandwidth management allow for better dual GPU performance?wabash9000 - Thursday, August 8, 2019 - link
"The city may be built on seven hills, but Rome's 8x8-core chiplet design is a truly cultural phenomenon of the semiconductor industry."The city of Rome was actually built on 8 hills, even their celebration of the 7 hills had 8 listed. Something got confused and it was actually 8 hills. Search "QI: Series O Overseas" on youtube
Ian Cutress - Thursday, August 8, 2019 - link
That episode is consequently where my onowdge about the 7 Hills / 8 Hills comes from.abufrejoval - Sunday, August 11, 2019 - link
sic transit gloria mundi... cum youtube non scolae discimus...I learned in Latin class, first of four foreign languages I learned in school (but I know that doesn't impress anyone from Belgium with three domestic ones :-)
ZolaIII - Thursday, August 8, 2019 - link
Seams that EPYC 7702P will be a absolute workstation killer deal. Hopefully AMD won't screw up with motherboard's this time around.