DDR4 Memory Scaling & DDR4-3600 Testing With AMD Threadripper On Linux
Written by Michael Larabel in Memory on 24 November 2017. Page 5 of 5. 23 Comments

The most interesting real-world memory test used for this article was Open Porous Media that is relevant to gas/oil industries and has proven to be quite a demanding benchmark. These G.SKILL DDR4-3600 memory modules had worked fine in every other workload tossed at it besides OPM. When running at DDR4-3600, the OPM workload was enough to cause memory corruption and crashes. So unfortunately with these cheap G.SKILL DDR4-3600 memory modules I could only run them here up to DDR4-3200, but at least the 4 x 8GB DDR4-3200 memory modules ran fine up to their rated speeds.

Open Porous Media craves as many memory channels as it can get and does enjoy the fastest memory possible.

This software for modeling and simulation of porous media processes doesn't scale too well past 16 threads at the moment, but will be interesting to see how much further they tune it as we move into 2018.

If you are thinking of assembling an AMD Threadripper this holiday season, these results again reiterate that going for quad channel memory is definitely worth it even if it means getting a slower kit than what you would if going for dual channel. Between say DDR4-3200 and DDR4-3600 speeds there wasn't too much of a difference in many of these real-world Linux benchmarks, compared to the price premium of DDR4-3600, so hopefully this information will be of help when shopping.

If you wish to compare your own Linux performance to these Threadripper 1950X tests found in this article, simply install the Phoronix Test Suite and run phoronix-test-suite benchmark 1711248-AL-MEMORYTES98.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via TwitterLinkedIn,> or contacted via MichaelLarabel.com.

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