7.2.9 Infinite Cache Log Entries

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7 Performance Analysis and Tuning : 7.2 Infinite Cache : 7.2.9 Infinite Cache Log Entries

As mentioned earlier in this document, each computer imposes a limit on the amount of physical memory that you can install. However, modern operating systems typically simulate a larger address space so that programs can transparently access more memory than is actually installed. This "virtual memory" allows a computer to run multiple programs that may simultaneously require more memory than is physically available. For example, you may run an e-mail client, a web browser, and a database server which each require 1GB of memory on a machine that contains only 2GB of physical RAM. When the operating system runs out of physical memory, it starts swapping bits and pieces of the currently running programs to disk to make room to satisfy your current demand for memory.

7 Performance Analysis and Tuning : 7.2 Infinite Cache : 7.2.9 Infinite Cache Log Entries

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