It provides a lot of information, including real, virtual, and paging space memory used.
它提供许多信息，包括所使用的实际、虚拟和分页空间内存。
It reports on all layers of file system utilization, including the Logical Volume Manager (LVM), virtual memory, and physical disk layers.
它报告文件系统的所有层的使用率，包括逻辑卷管理器(LVM)、虚拟内存和物理磁盘层。
Virtual memory subsystem enhancements, including a reverse-mapping algorithm that provides improvements in memory-constrained systems.
虚拟内存子系统改进，包括在内存压力比较大的系统中提供的反向映射算法。
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