Huawei News

Huawei openEuler 21.03 released: Check the changelog [5.10 kernel]

openEuler 21.03

According to the information, Huawei has officially released the openEuler 21.03 version and it is an innovative version rather than the LTS (Long Term Support) version. openEuler 21.03 uses a new 5.10 kernel, enhanced virtualization capabilities, maintenance capabilities, and also brings more desktop environment support.

ISO download link: Click here to download

Raspberry IMG download link: Click here to download

Key Features

  • StratoVirt: Combines high security and performance with lightweight loads, low power consumption, and flexible component splitting for trusted virtualization platform in all scenarios.
    • Uses the Rust language, supports seccomp and multi-tenant isolation, providing a secure and trusted operating environment.
    • Supports startup within 50 ms and memory noise floor of less than 4 MB, achieving the ultimate performance and lightweight deployment in various scenarios across-device-edge-cloud.
    • Supports multiple hardware acceleration virtualized engines, such as x86 VT and Kunpeng-V.
    • Supports device scaling within milliseconds, providing flexible resource scaling capabilities for lightweight loads.
    • Scalable device models, supports complex device specifications such as PCI, and compatible with the QEMU software ecosystem.
    • Supports multiple computing, network, and storage acceleration solutions, and flexible collaboration of heterogeneous computing power.
  • iSula: A lightweight container solution that unifies IoT, edge, and cloud computing.
    • Optimized operation performance for the startup and container lifecycle.
    • isula-build, a container image build tool that provides secure and fast container image build capabilities.
    • Secure and trusted VM startup for enhanced VM security.
  • Enhanced virtualization features
    • Optimizes VM lock preemption with dual-layer scheduling and Hypervisor-aware VM scheduling, delivering higher performance in the multi-core overcommitment scenario.
    • Optimizes the IPI interruption performance using the Guest-Idle-Haltpoll mechanism, improving the database service performance.
    • For the virtualization feature of the ARM platform, supports the CPU/memory hot plug and the custom mode for the KVM CPU, making resource configuration more flexible.
    • Quickly collects performance indicators of a VM using the O&M tool VMTOP.
    • Enables hardlockup detection using the PMU NMI watchdog feature.
  • Kernel feature enhancement
    • Enhancement for IMA commercial use: Based on the open source IMA solution, improves security, performance, and usability to facilitate commercial use.
    • NUMA Aware Qspinlock: Improves system performance by reducing cross-NUMA cache synchronization and ping-pong operations caused by lock competition.
    • Ktask parallelism: A kernel task parallelism framework that supports the parallel operation of kernel tasks.
    • MPAM resource control: Supports Cache QoS and memory bandwidth control technology for the ARM64 architecture.
    • Memory system lock optimization: Optimizes vmalloc allocation lock and Pagecache lock.
  • Programming languages and compilers
    • JDK8 enhancement: Supports the APPCDS feature and crc32 hardware acceleration instruction.
    • GCC optimization: Supports cyclic optimization, automatic vectorization, and global optimization.
  • Hardware and chip enablement
    • Raspberry Pi: Supports the Raspberry series boards.
  • Desktop support
    • UKUI: Default desktop environment of the Kylin OS. Its layout, style, and usage habits are similar to those of the traditional Windows OS.
  • Intelligent O&M
    • A-Tune: An intelligent system performance optimization engine that infers service features and configures the optimal system parameter set for the optimal service operations.

(Via)

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