STAC Report: STAC-N1 with AMD Ryzen in Supermicro server

First STAC-N1 with AMD Ryzen™ CPUs sets records.

24 October 2023

AMD recently asked STAC to perform STAC-N1 Benchmark tests on a solution utilizing AMD Ryzen™ processors in Supermicro A+ servers. This came after a number of such tests that STAC has performed on AMD EPYC™ processors over the last three years. The STAC Report is available here.

STAC-N1 measures the performance of a host network stack (server, OS, drivers, host adapter) using a market data style workload. This benchmark was performed on a pair of Supermicro A+ AS-2015A-TR servers, each with a single 16-core AMD Ryzen™ 7950X processor @ 4.5 GHz (5.7 GHz Boost), an AMD Xilinx XtremeScale™ X2522-25G-PLUS Adapter and OpenOnload 8.1.1.17, and Red Hat Enterprise Linux 9.2. Communication was over 25GbE cross connects with forward error correction disabled.

AMD wished to highlight the following results:

• Compared to all publicly disclosed STAC-N1 results to date that used UDP:
• The lowest mean, median, 99 percentile, and maximum latency for the base rate of 100k messages per second (STAC.N1.β1.PINGPONG.LAT1)
• The highest maximum throughput tested of 1.6 million messages per second (STAC.N1.β1.PINGPONG.TPUT1)
• The lowest mean, median, 99 percentile, and maximum SupplyToReceive latency at the highest rate tested (STAC.N1.β1.PINGPONG.LAT2)
• The lowest mean, median, 99 percentile, and maximum SendToReceive latency at the highest rate tested (STAC.N1.β1.PINGPONG.LAT3)

The report analyzes latencies and other metrics in detail. Premium subscribers also have access to a detailed STAC Configuration Disclosure and a complete sosreport for the system.

If your firm does not have access to these materials, please take a minute to learn about subscription options.