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* Increased scalability of virtualized x86-64 environments: This includes the industry-leading ability to support virtual servers with up to 32 virtual CPUs and 80GB of memory. Physical server limits have also been expanded to match the size of today's latest hardware systems, with up to 126 CPUs and 1TB main memory. New features, such as support for Hugepage memory and Intel Extended Page Tables (EPT), dramatically improve the performance of virtual servers. For customers, these enhancements allow more and larger virtual systems to be configured on today's powerful servers, thereby reducing costs. Additionally, more devices can be allocated to each virtual server (guest), enabling the virtualization of applications with heavy I/O requirements.
* Support for Intel Core i7 (Nehalem) processors: This quad-core, hyperthreaded 45nm processor is one of the most significant advances for Intel processor architecture since the Pentium Pro. Red Hat Enterprise Linux 5.3. delivers exceptional performance with the new processor, and also supports features such as the power management and hyperthreading. In internal testing, the Red Hat Engineering Performance Group has measured exceptional gains with the new Nehalem processors, with unaudited results showing gains of 1.7x for commercial applications and gains up to 3.5x for high-performance technical computing applications compared to the previous generation of Intel processors.
* Inclusion of OpenJDK: OpenJDK is a high-performance, fully open source implementation of Java SE 6. OpenJDK is based on the same code base as Sun's JDK, the most widely adopted Java implementation. OpenJDK in Red Hat Enterprise Linux 5.3 has passed the full Java SE 6 TCK and is compatible with all applications written for Java SE 6 and previous versions. OpenJDK is fully supported directly by Red Hat. With the integration of OpenJDK, Red Hat Enterprise Linux 5.3 is the first enterprise-ready solution with a fully open source Java stack when combined with JBoss Enterprise Application Platform.
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发表于 2009-1-22 03:10:19
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发表于 2009-1-22 15:26:59
