"Ford's interest in Xen reflects the automotive industry's acknowledgment that future vehicles will all include computers to handle many tasks, among them running safety systems, instrument panels, telematics, and infotainment systems. Automakers are also keenly aware that it is untenable for safety software to stop working if an infotainment system glitches, and so are exploring in-vehicle hypervisors to isolate different workloads. Such concerns are one reason Japan's Honda is a Xen Project member."
"While Xen drives toward automotive applications, the headline changes in this release relate to its heritage in the datacenter by adding better cache management and enhanced CPU frequency control to help run VMs more efficiently and improve performance-per-watt. A PDX compression algorithm that reduces hypervisor memory footprint and improves I/O on AMD processors is another inclusion. Admirers of the Arm architecture get many small performance-enhancing changes."
Xen Project released version 4.21 of its hypervisor and tools with contributions from automaker Ford, which joined in June. Ford accounted for 3.5 percent of recent contributors, outpacing Arm, while Cloud Software Group remained the largest author source ahead of AMD, SUSE, EPAM, and Vates. Efforts toward safety certification aim to make the hypervisor suitable for vehicles, industrial settings, and aviation. Datacenter-focused improvements add better cache management, enhanced CPU frequency control, and a PDX compression algorithm that shrinks hypervisor memory footprint and improves AMD I/O. Multiple Arm performance tweaks accompany progress on a XenServer fork for Ampere manycore CPUs.
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