Key Features

• iSula: A lightweight container solution that unifies IoT, edge, and cloud computing.

  • Anonymous volumes can be configured in the image, and local volumes can be easily managed by users.
  • The isula-build allows you to pull and push images and save multiple images to a tarball.

• A-Tune: An intelligent system performance optimization engine that infers service features and configures the optimal system parameter set for the best service operations. The following functions are added:

  • Incremental tuning
  • Sensitive parameter identification, filtering, and tuning
  • Tuning capabilities for VM scenarios
  • One-click model training

• Multiple JDK versions are supported to meet different requirements on compatibility, performance, and functions.

  • The operating system supports multiple JDK versions, allowing users to deploy Java applications of multiple versions. The versions and functions supported are as follows:
  • Java 11. For details, see JDK 11.
  • TLS 1.3 for a more secure protocol
  • Java Flight Recorder, an efficient Java application diagnosis tool with low performance loss
  • Experimental ZGC algorithm with low latency
  • The latest Short Term Support (STS) version is supported, which is JDK 15 currently. For details, see JDK 15.
  • Pattern Matching for instanceof (Second Preview)
  • Production-ready ZGC
  • Production-ready Shenandoah GC
  • Foreign-Memory Access API (Second Incubator)
  • Records (Second Preview)

• Kernel feature enhancement

  • Huawei 1822 HBA card driver
  • NVDIMMs for higher performance in service scenarios such as big data
  • FT-2000+/64 of Phytium processors for general-purpose computing
  • The iSCSI work thread can be bound to cores based on NUMA-aware affinity to improve I/O performance.
  • The percpu lock-free function of the file cache is optimized to reduce the atomic overhead and improve the performance of concurrent file access and Nginx scenarios.

• Virtualization feature enhancement

  • ARM virtualization supports CPU/memory hot plug, making resource configuration more flexible.
  • The KVM CPU can be set to the custom mode (ARM) to customize configurations of the CPU feature on the VM.
  • The O&M tool VMTOP is used to quickly collect VM performance indicators, such as exit/entry.
  • Secure boot is supported to improve VM security.

• Desktop support

  • Default UKUI desktop environment on Kylin OS
  • DDE (Uniontech-developed desktop system)

• High reliability

  • HA cluster software comprising Pacemaker and Corosync

• Hardware enablement

  • Raspberry Pi serial boards