Canonical has released its real-time Linux Ubuntu 22.04 LTS platform, intended to provide end-to-end security and reliability for time-constrained workloads.
Unveiled on February 14 and positioned for use in telecommunications, aerospace, defense and public sector applications, version 22.04 provides deterministic responses to real-time events and seeks to minimize response time guarantees within a specified time. Based on Linux kernel version 5.15, Ubuntu 22.04 LTS features the off-tree PREEMPT_RT patch set for Arm and x86 architectures. This set of fixes reduces kernel latencies to ensure predictable task execution. Canonical said PREEMP_RT makes the kernel more preemptive than mainline Linux. Real-time Ubuntu is intended to deliver performance, low latency, and security for the telecommunications infrastructure, with the kernel designed to meet telecommunications transformation needs for 5G.
The realtime kernel is available in all variants of the Ubuntu operating system. Two deployment options are available:
- Ubuntu Server 22.04 LTS with the real-time kernel is available via a Ubuntu Pro Subscription. This release offers cloud images for AWS, Azure, and Google Cloud Platform; support for OpenSSL cryptography and secure communication; network acceleration improvements; and general support for GlusterFS, FRRouting and realmd/adcli.
- Ubuntu Core 22 with the real-time kernel is available for enterprise customers with a app store. Ubuntu Core is a containerized variant of Ubuntu designed for edge devices. Canonical will maintain Ubuntu Core with the realtime kernel for the long term.
Copyright © 2023 IDG Communications, Inc.