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Achieving 11M IOPS and 66 GiB/s IO on a Single Threadripper Workstation (2021)
TL;DR Modern disks are so fast that system performance bottleneck shifts to RAM access and CPU. With up to 64 cores, PCIe 4.0 and 8 memory channels, even a single-socket AMD ThreadRipper Pro workstation makes a hell of a powerful machine - if you do it right! Update 1: Since 2021, networks have gotten faster and now it is possible to have high-speed reliable remote I/O even in cloud VMs! - Linux, Oracle, SQL performance tuning and troubleshooting - consulting & training.
In this post I’ll explain how I configured my AMD ThreadRipper Pro workstation with 10 PCIe 4.0 SSDs to achieve 11M IOPS with 4kB random reads and 66 GiB/s throughput with larger IOs - and what bottlenecks & issues I fixed to get there. The scope of this article is to show the raw performance even cheap commodity hardware gives you nowadays, so if your company is paying 10x more for 100x lower throughput, it’s good to be aware of other options. The NVIDIA Quadro P620 video card shares the same PCIe root complex with one quad SSD adapter, but since I’m not using the GPU in this machine for anything, I don’t expect it to eat significant bandwidth.
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