它还可以帮助检测系统颠簸，当可用内存量很低并且不断地调入和调出页面以支持任务的处理时，可能会出现系统颠簸。
It also helps detect thrashing, which can occur when memory is extremely low and pages are constantly being paged in and out to support processing.
如果不加以处理，系统颠簸可能会导致系统停滞，因为内核过分地关注于为页面腾出空间，而不是完成任何有实际意义的工作。
Unabashed thrashing can literally cause a system to come to a standstill, as the kernel becomes too concerned with making room for pages than actually doing anything productive.
如果不加以处理，系统颠簸可能会导致系统停滞，因为内核此刻过分地关注于为页面腾出空间，而不是完成任何有实际意义的工作。
Unabashed thrashing can literally cause a system to come to a standstill, as the kernel becomes too concerned with making room for pages than to actually do anything productive.
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