Shulou(Shulou.com)11/24 Report--

CTOnews.com news on October 1, September 30, openEuler 23.09 innovative version was officially released, which is the latest innovative version released by the community. EulerMaker is used to build this version of server, cloud computing, and edge computing images, with a total of 910 million lines of version code. Compared with openEuler 23.03, there are 8900 new lines of code.

The new code mainly focuses on Linux Kernel 6.4 feature inheritance, basic software package version selection and upgrade, heterogeneous general memory management framework GMEM, unified container runtime framework Kuasar, ROS2 humble, utshell, utsudo. Among them, 180000 lines of kernel code are added, which mainly focus on the improvement of CFS bandwidth control, support for multi-generation LRU (Multi-Gen LRU), support for open coding iterators, support for user-defined BPF objects, support for ARM architecture SME2 and new SME2.1 features.

There are 2443 new openEuler community packages, with a total of more than 35000, which is officially on a par with the number of packages in the international mainstream operating system community.

According to reports, openEuler 23.09 uses Linux Kernel 6.4 kernel, and the future openEuler 24.03 LTS version uses Linux Kernel LTS version at the end of 2023 as the kernel for technical exploration. it is also convenient for developers to adapt software and hardware, basic technology innovation and upper application innovation.

OpenEuler 23.09 currently supports mainstream chip architectures, hardware, virtual machines and containers such as X86, Arm and RISC-V. The openEuler kernel inherits many of the features of previous versions:

CPU QoS priority load balancing feature: off-line mixed-part CPU QoS isolation is enhanced, supporting multi-core CPU QoS load balancing, further reducing offline business QoS interference.

Programmable scheduling: a programmable scheduling framework based on eBPF, which supports the kernel scheduler to dynamically expand the scheduling strategy to meet the performance requirements of different loads.

Hot patch: the bug implemented by kernel functions is repaired without restart. OpenEuler uses the method of directly modifying instructions to jump to the new function directly at run time, without looking up and transferring, so it is more efficient.

Supporting the filescgroup:Cgroup files subsystem can manage the number of handles opened by processes in the system, better realize the resource control of the number of handles, and provide an interface for resource management to prevent the process from opening too many handles, causing the system to fail to work.

Memcg Asynchronous Recycling: Memcg is used to manage the memory usage of process groups. Memcg asynchronous recovery is an optimization mechanism, which asynchronously reclaims memory in Memcg when the system is under low load, avoids the delay and performance problems of memory recovery when the system is under high load, and improves the performance and response speed of the system.

In addition, 320 basic softwares such as GCC, glibc and systemd have been selected and upgraded, making it convenient for developers to adapt the software for openEuler 24.03 LTS version in advance.

OpenEuler officials said that the 23.09 innovative version gathered the strength of 1139 developers in the community, and the number of developers increased by 40% compared with the previous version, and could not do without the contribution of more than 1100 enterprises in the community. Including Huawei, Kirin Software, Tongxin Software, Guangdong-Hong Kong-Macau Greater Bay Area (Guangdong) National Chuangchuang Center, contemplation Software, soft Power, China Telecom, Software Institute of Chinese Academy of Sciences, China soft International, Kirin Xinan, Superfusion, Intel, SUSE, Linaro Limited, Haiguang and other companies and scientific research institutes. CTOnews.com attached contribution table:

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