Physical memory restrictions leading to smaller JVM sizes typically see higher rates of collection under load.

将导致更小的JVM大小的物理内存的限制常常使您看到在负载下更高的收集率。

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In addition to scalability, virtualization introduces the ability to migrate virtual machines (VMs) between physical servers for the purposes of load balancing.

除可伸缩性外，为了负载均衡，虚拟化还能够在物理服务器间迁移虚拟机(VM)。

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Figure 2 depicts a typical RAC physical topology in a WebSphere Application Server cluster environment, where both the failover and load balancing Qualities of Service are enabled.

图2描述了WebSphere Application Server集群环境中的典型rac物理拓扑，在此环境中，同时支持故障转移和负载平衡服务质量。

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Given a 60 percent load capacity on average (again, to avoid hot spots), our example would yield an average of 13 physical servers per rack (assume 42u racks) and 520 physical servers.

FORBES: The Case for the Infinite Data Center