That's the message of a massive compendium of research reviews, the Cambridge Handbook of Expertise and Expert Performance, published last year.
这就是《剑桥专门技术和专家表现手册》——一份纲要(对于海量的科学研究的回顾总结所提出的)所要传递的信息。
Another important general finding is that expert performance is highly specific to limited domains, reflecting the adage that experts know more and more about less and less.
另外一项重要的具有普遍性的发现就是专家们的专业表现高度集中在有限的领域。就如那格言所说，专家们学得越多，就知道得越少。
Indeed, when the expert pays attention to the mechanics, this is liable to disrupt performance.
确实，当专家关注技巧时，这很容易影响表现。
Performance Expert provides a nice user interface to help you set up, configure, and display Workload Manager key performance indicators (KPI).
Performance Expert提供友好的用户界面，可以帮助您设置、配置和显示WorkloadManager关键性能指标 (KPI)。
To disable Performance Expert Server from collecting data, connect to the performance database and issue one of the following commands
要想禁止Performance Expert服务器收集数据，应该连接性能数据库，然后执行以下命令之一
Performance Expert displays the performance metrics for exactly the two hours you requested.
Performance Expert显示指定的这两小时内的性能指标。
Web performance expert Steve Tack says retailers have worked hard to deliver an online shopping season free of the website crashes and technical problems common in previous years.
网络表现专家SteveTack表示零售商们都努力让在线购物季不会受到网络崩溃和技术问题的影响。而这两件事在往年还是很常见的。
Its user interface makes performance and tuning simple so that both novice and expert database administrators can use it. Performance expert can help you do the following.
它的用户界面使性能监控和调优变得非常简单，无论新手还是专家级数据库管理员都能够使用它。
Beilock found that distractions, such as recalling a list of random words, affected the performance of novices, but expert golfers were not so easily thrown off - with one critical exception.
Beilock发现，例如回想一组随机单词，分心会影响新手的表现，但专业选手并没有那么容易掉链子——仅有一种例外情况。
You can double-click any of the key performance indicators from the performance Expert System Overview window or dashboard to drill down into more key performance indicators.
您可以双击performance ExpertSystemOverview窗口或指示板上的任何关键性能指标，以下钻到更多的关键性能指标。
If you use the long-term history, start a DB2 statement event monitor to collect SQL event monitor data and to store the collected data in the performance database of the performance Expert server.
如果使用长期历史，可以启动db2语句事件监视器来收集SQL事件监视器数据，并把收集的数据存储到Performance Expert服务器的性能数据库中。
The performance Expert dashboard shows performance counters for your defined workloads.
Performance expert指示板显示定义的工作负载的性能计数器。
Comprehensive expert advisors not only tune that particular SQL statement, they also recommend tuning activities that improve the overall performance of an entire DB2 SQL workload.
完善的专家建议程序不仅可以调优特定的sql语句，还可以推荐能够改善完整DB 2 SQL工作负载的整体性能的调优行为。
DB2 Optimization expert identifies poorly performing SQL and offers a comprehensive set of expert advisors that can help improve system performance and lower total cost of ownership.
DB 2Optimization Expert识别执行情况较差的SQL并提供一组全面的专家建议程序，帮助改善性能并降低总体所有权成本。
IBM DB2 Performance Expert is a tool which can assist you in all these tasks by providing online monitoring, exception processing, and short-term and long-term history monitoring capabilities.
IBMDB 2Performance Expert是一个能够通过提供在线监控、异常处理以及短期和长期历史监控功能来帮助完成上述所有任务的工具。
Because DB2 automatically manages your containers and space allocation for your tablespace, you might not want Performance Expert to collect these counters.
因为DB 2自动地管理表空间的容器和空间分配，所以可能不需要让Performance Expert收集这些方面的计数器。
In a large partition environment, set the default Performance Expert login mode to history-only mode, because too many users logging in using current mode can impact the monitored DB2 instance.
在大型分区环境中，应该把默认的Performance Expert登录模式设置为只历史模式，因为使用当前模式登录的用户过多会影响监视的DB 2实例。
You can always disable Performance Expert from collecting container and tablespace data.
随时可以禁止Performance Expert收集容器和表空间数据。
It explained how to get the most out of Performance Expert by changing your default Settings for server history configuration, setting up alerts, and using your System Health data views.
这一部分解释了如何充分利用Performance Expert，更改服务器历史配置的默认设置，设置提醒，以及使用SystemHealth数据视图。
When you select a service class, Performance Expert automatically highlights the correlating sub-service class.
在选择一个服务类时，Performance Expert会自动地突出显示相关联的子服务类。
If you are using DB2 automatic storage, you need to decide whether you want Performance Expert to collect counters for tablespaces.
如果使用DB 2自动存储，就需要决定是否要让Performance Expert收集表空间的计数器。
By default, Performance Expert captures containers and tablespace counters so you can see when DB2 automatic storage makes changes.
在默认情况下，Performance Expert捕捉容器和表空间计数器，所以可以看到DB 2自动存储所做的调整。
This article describes how to take baselines with Performance Expert based on the short-term and long-term history data.
本节讨论如何使用Performance Expert根据短期和长期历史数据建立基线。
To enable the Default is history-only mode for all Performance Expert clients, use the db2pesrv.prop file.
要想为所有Performance Expert客户机启用 “Defaultis history-onlymode”，应该使用 db2pesrv.prop文件。
To enable the Default is history-only mode for all Performance Expert clients, use the db2pesrv.prop file.
要想为所有Performance Expert客户机启用 “Defaultis history-onlymode”，应该使用 db2pesrv.prop文件。
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