sql server(windows平台上强大的数据库平台)占用的内存主要由三部分组成:数据缓存(data buffer)、执行缓存(procedure cache)、以及sql server(windows平台上强大的数据库平台)引擎程序。
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框架会在底层执行缓存操作,因此不存在太大的性能 问题。
The framework performs caching under the covers, so this isn't too much of a performance concern.
这些线程通常都是轻量级的,用于执行缓存清理和对象清理之类的事务。
They are traditionally lightweight and used for executing tasks such as cache cleanup and object cleanup.
大多数UNIX系统会尝试用空闲内存执行缓存,这就是系统常常看起来没有空闲内存的原因。
Most UNIX systems try to use free memory for caching, which is why it often looks like your system has no free memory.
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