When maxperm is a strict-limit, the kernel does not allow the number of non-computational pages to exceed maxperm, even if there is free memory available.
当maxperm是严格限制的时候，即使有可供使用的空闲内存，内核也不允许非计算性分页的数目超出maxperm的限制。
DB2 Express is limited to 4 GB of memory for the entire database server (the database engine will throttle the amount of memory consumption such that it does not exceed the 4 GB limit).
DB 2Express在整个数据库服务器中最多支持4GB内存(数据库引擎将限制内存消耗，使其不超过4 GB)。
DB2 Express is limited to 4 GB of memory for the entire database server (the database engine will throttle the amount of memory consumption such that it does not exceed the 4 GB limit).
DB 2Express在整个数据库服务器中最多支持4GB内存(数据库引擎将限制内存消耗，使其不超过4 GB)。
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