中文名称：Redhat Enterprise Linux Advanced Server 4 资源类型：ISO 版本：4.0 发行时间：2005年02月15日 制作发行：Redhat 地区：美国 语言：普通话,英语 简介：
The following section outlines a few of the major new features in Red Hat Enterprise Linux v.4:
Linux 2.6 kernel infrastructure
Red Hat Enterprise Linux v.4 provides the most stable and robust commercial product based on the Linux community's 2.6.9 kernel. Open source projects such as Fedora provided an environment for the Linux 2.6 kernel to mature significantly during 2004. As a result, the Red Hat Enterprise Linux v.4 kernel offers numerous improvements over earlier kernels, including many enhanced algorithms and features:
Generic logical CPU scheduler: Handles multi-core and hyperthreaded CPUs. Object-based Reverse Mapping VM: Improved performance in memory constrained systems. Read Copy Update: SMP algorithm optimization for operating system data structures. Multiple I/O schedulers: Selectable based on the application environment. Enhanced SMP & NUMA support: Improved performance and scalability for large servers. Network interrupt mitigation (NAPI): Improved performance for heavy network loads.
Improved storage and file system capabilities
Numerous enhancements have been incorporated into Red Hat Enterprise Linux v.4 that improve the scalability and performance of the data storage subsystems, including:
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