TencentOS Server is a high-performance Linux operating system (OS) launched by Tencent Cloud. It is deeply optimized for enterprise-grade applications to deliver exceptional stability, security, and performance. It is a self-developed product based on the Linux kernel and technologies of Tencent accumulated for years, and it has been tested by large-scale workloads. It now accounts for over 99% of the OSs used internally at Tencent and is widely used in various industries, including social networking, gaming, finance, payment, and AI.

Compared with the traditional community edition Linux system, TencentOS Server has been comprehensively enhanced in container support, system stability, and performance. It is particularly applicable for enterprise applications requiring high availability and high stability, providing a reliable OS solution for users across various industries.

Currently, TencentOS Server has three versions.

TencentOS Server 2: The user space is fully binary compatible with CentOS 7.

TencentOS Server 3: The user space is fully binary compatible with CentOS 8.

TencentOS Server 4: This version has an independent technical route and evolves to meet the requirements in cloud native, AI, and other scenarios.

TencentOS Server focuses on ecosystem development and actively adapts to global hardware. It comprehensively supports multiple architectures, including x86 and ARM64, and is compatible with chips from mainstream chip manufacturers, such as Intel, AMD, NVIDIA, and Ampere. In addition, it has undergone deep optimizations for different hardware platforms. In terms of image formats, TencentOS Server provides images in ISO, QCOW2, Docker, and other formats, meeting diverse deployment needs of physical servers, virtual machines, and containers.

TencentOS Server is deeply integrated with the Tencent ecosystem, and the verification of its compatibility with self-developed products, such as TDSQL, Tencent Cloud-native Suite (TCS), and Tencent Cloud Enterprise (TCE), has been completed. Multiple products have established packaging and delivery cases. For general application support, the system is fully compatible with widely-used services, including Apache, Nginx, Tomcat, Samba, FTP, NFS, PostgreSQL, and MariaDB, ensuring seamless migration and stable operation of enterprise applications.

TencentOS Server is deeply optimized based on the kernel of the stable version in the community and achieves performance breakthroughs in multiple core subsystems.

Optimizations to the CFS scheduler of the CPU subsystem enhance scheduling fairness and flexibility. The concurrent random number read performance tested by stress-ng is 28% higher than that of Upstream.

The memory subsystem manages physical memory through the buddy system to reduce memory fragments. By leveraging per-memcg lru lock, it achieves a 187% performance improvement in concurrent page cache access by multiple containers compared to Upstream. The system provides server-level and container-level page cache isolation features, effectively solving memory pressure issues.

The I/O subsystem supports multiple scheduling algorithms that can be flexibly selected based on business scenarios. The network subsystem employs NAPI/POLL to handle high-traffic scenarios, preventing interrupt storms.

As a cloud-native OS, TencentOS Server provides cgroupfs for internal resource view isolation of containers, Service Level Indicator (SLI) for container-level resource monitoring, Resource Utilization Enhancement (RUE) for efficient resource utilization, and comprehensive eBPF feature support, delivering a solid foundation for cloud-native applications.

TencentOS Server builds a high-performance, highly secure, and highly compatible OS platform and provides a solid foundation for both cloud-native applications and traditional enterprise applications. Over ten million TencentOS Server systems have been deployed on Tencent Cloud, with more than 50 million cores under management, demonstrating its stability and reliability.

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