The PALMSHELL NeXT H2 is an affordable micro server and single-board computer (SBC) powered by an AMD Ryzen Embedded R1505G processor. It offers impressive networking capabilities with two 10GbE SFP+ cages and one 2.5GbE RJ45 port. The system also supports up to 32GB of RAM and has storage options including an M.2 NVMe SSD and two SATA drives. It features wireless connectivity options such as WiFi 6, Bluetooth 5.2, and the possibility of adding a 4G LTE or 5G module. These network features make it an interesting option for various homelab uses. Theoretically, the device could support ECC memory as the Ryzen Embedded R1505G has such support, but this is not mentioned in the specifications for the NeXT H2 specifications, although it is mentioned in the specifications for the CPU. It should be noted that such support also depends on motherboard and firmware, not just on the CPU.

The system is equipped with a customized copper heatsink and a 3000 RPM PWM speed control fan for efficient cooling. It can be powered by a 12V to 19V DC power supply. The PALMSHELL NeXT H2 is designed to support multiple operating systems, including Ubuntu, Arch Linux, Fedora, Debian, OpenWrt, Windows, pfSense, and ROS.

The SBC without memory, storage, or wireless connectivity starts at $199. The barebone model with a metal enclosure is priced at $249. Two models with 8GB RAM/256GB SSD and 16GB/512GB configurations, along with the Intel AX210NGW WiFi 6E/BT 5.2 module, are available for $299 and $349, respectively. Power supply is not included with any of the options.

Source: CNX Software – Embedded Systems News.

Linux 6.5 now defaults to the AMD P-State EPP driver for Zen 2 and newer Ryzen systems, as long as the system supports ACPI CPPC. However, the AMD EPYC server processors still continue to use ACPI CPUFreq by default. Given the increasing interest in the AMD Ryzen 7000 series for budget and small-to-medium-sized business (SMB) servers, the performance impact of Linux 6.5 with more server workloads was analyzed.

Phoronix has tested the changes, and testing was conducted comparing the performance of Linux 6.4 against Linux 6.5, both out-of-the-box and using the Ubuntu Mainline Kernel PPA for easy reproducibility. The default change involves going from ACPI CPUFreq Schedutil to AMD P-State EPP with the powersave governor. Additional tests were done with the performance governor for maximum performance. AMD P-State is available on earlier Linux kernel versions but is not set to be used out-of-the-box until Linux 6.5 and later. The testing was done using the ASRock Rack 1U4LW-B650/2L2T, a 1U Ryzen AM5 server platform that supports Ryzen 7000 series processors and ECC memory. No other changes were made to the server during testing, except for swapping out the Linux kernel and running secondary tests with the performance governor. The CPU clock frequency differences in the automated system table were minimal and did not affect the testing results.

The article provides valuable insights for those interested in using Ryzen processors for server applications.

Source: Phoronix.