The Impact Of The CPU Frequency Scaling Governor On AMD Threadripper 2990WX Linux Performance

One of many test requests we have received concerning the AMD Threadripper 2 Linux performance was to look at the impact of the different CPU frequency scaling governors, particularly for the 32-core / 64-thread Ryzen Threadripper 2990WX. Here are those CPUFreq governor benchmarks for those interested in squeezing slightly better performance out of your HEDT system by changing how aggressively or not the system is shifting power states to higher frequencies.

4 Hours Ago - Software - 1 Comment

20 August

A Fresh Look At The NVIDIA vs. Radeon Linux Performance & Perf-Per-Watt For August 2018

With NVIDIA expected to announce the Turing-based GeForce RTX 2080 series today as part of their Gamescom press conference, here is a fresh look at the current NVIDIA Linux OpenGL/Vulkan performance with several Pascal graphics cards compared to AMD Polaris and Vega offerings. Additionally, with these latest Linux drivers, the current look at the performance-per-Watt.

20 August 11:31 AM EDT - Linux Gaming - 20 Comments
The Performance Hit For A Xeon-Backed Ubuntu Linux VM With L1TF / Foreshadow Patches

Last week L1 Terminal Fault (a.k.a. L1TF and Foreshadow) was made public as the latest set of speculative execution vulnerabilities affecting Intel processors. This Meltdown-like issue was met by same-day Linux kernel patches for mitigating the problem and does introduce another performance penalty but in this case is at least only limited to virtual machines. Last week I posted some initial L1TF-mitigated KVM-based VM benchmark results using a Core i7 CPU but the results for sharing today are using a much more powerful dual Xeon server.

20 August 08:23 AM EDT - Software - 13 Comments

19 August

A Look At The Windows vs. Linux Scaling Performance Up To 64 Threads With The AMD 2990WX

This past week we looked at the Windows 10 vs. Linux performance for AMD's just-launched Ryzen Threadripper 2990WX and given the interest from that then ran some Windows Server benchmarks to see if the performance of this 64-thread CPU would be more competitive to Linux. From those Windows vs. Linux tests there has been much speculation that the performance disparity is due to Windows scheduler being less optimized for high core/thread count processors and its NUMA awareness being less vetted than the Linux kernel. For getting a better idea, here are benchmarks of Windows Server 2019 preview versus Ubuntu Linux when testing varying thread/core counts for the AMD Threadripper 2990WX.

19 August 11:56 AM EDT - Operating Systems - 31 Comments

18 August

Benchmarks Of Btrfs RAID On Four Samsung 970 EVO NVMe SSDs

With the MSI MEG X399 CREATION that we received as part of the launch package for the Threadripper 2950X and Threadripper 2990WX it includes the XPANDER-AERO that provides 4-way M.2 NVMe SSD slots on a PCI Express x16 card. The XPANDER-AERO is actively cooled and could be passed off as a small form factor graphics card upon a very cursory examination. With this card I've been running tests on four Samsung 970 EVO NVMe SSDs in RAID to offer stellar Linux I/O performance. Here are some initial benchmarks using Btrfs.

18 August 06:28 PM EDT - Storage - 16 Comments

17 August

Linux Scaling Benchmarks With The AMD Threadripper 2990WX In Various Workloads

While yesterday were the benchmarks showing how Linux games struggle to scale past a few CPU cores/threads, in this article is a look at the scaling performance of various applications/workloads under Linux up to 64 threads using the AMD Threadripper 2990WX. Here's a look at how the Linux performance changes in a variety of applications from one to sixty-four threads with this new HEDT processor.

17 August 11:49 AM EDT - Software - 28 Comments

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