对于某些情况——比如在您自己的工作站本地运行的Web服务器、数据库和浏览器——挂钟时间能够提供信息。
For some circumstances — say, running the Web server, database, and browser locally on your own workstation — wall clock time can be informative.
一个简单的性能指标是挂钟时间(wallclock time)，或测量页面请求与完成呈现之间的实际延迟。
A simple performance metric is wall clock time, or measuring the real-world delay between a request for a page and a finished rendering.
然而，挂钟时间对于其他大多数情况而言并无实际意义，比如网络延迟时间、活动的Web服务器或者活动的数据库。
However, wall clock time is merely anecdotal for most other permutations, such as those that include network latency; a trafficked, live Web server; or an active database.
这是个一维的图：竖直方向上的是(挂钟式)时间，单位为毫秒。
This diagram is one dimensional: vertically we have the (wall clock) time, in milliseconds.
由RafaelMorgan设计的奇特挂钟利用放大镜来显示时间。
Unique wall clock designed by Rafael Morgan shows time with the help of a magnifying glass.
挂钟没有停止按键，这意味着时间开始就不能停止。钟里有一个碎纸机，过去的时间的被无情的碾碎。而当一年过去后留下的只是一大堆碎纸。
As minutes pass, a continuous roll of time is shredded until you end up with a big pile of paper by the New Year.
挂钟没有停止按键，这意味着时间开始就不能停止。钟里有一个碎纸机，过去的时间的被无情的碾碎。而当一年过去后留下的只是一大堆碎纸。
As minutes pass, a continuous roll of time is shredded until you end up with a big pile of paper by the New Year.
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