You'll have to decide if the trade-off is worth it because the Cache object automatically discards least-used data if the system runs low on memory.

您必须权衡利弊，因为如果系统内存运行效率低，Cache 对象会自动丢弃最少使用的数据。

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Proper management of the thread pools is important, because threads are fairly expensive resources in terms of memory consumption in the server, as well as other low-level operating system resources.

正确管理线程池非常重要，因为线程对于服务器中的内存使用量以及其他低级操作系统资源而言是相当珍贵的资源。

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Session data needs to be kept, so the system cannot discard any data when running low on memory.

由于需要保留会话数据，因此系统内存不足时，无法丢弃任何数据。

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