内核空间被标记在页表中的独家特权代码(环2或更低)，因此一个页面故障被触发，如果用户模式的程序试图去触摸它。

Kernel space is flagged in the page tables as exclusive to privileged code (ring 2 or lower), hence a page fault is triggered if user-mode programs try to touch it.

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对于通常的事务性工作负载，从成员出故障到页面被恢复并可供另一个事务使用，通常只需20秒甚至更少的时间。

For typical transactional workloads, the time from the member failure until the time the pages are recovered and available to another transaction is typically 20 seconds or less.

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现在您可以使用该数据来决定每一页面和故障排除潜在瓶颈的百分比。

This data can now be used to determine the percentage of outliers for each page and troubleshoot potential bottlenecks.

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