性能优化必须以具体证据为依据。
Performance optimization must be guided by concrete evidence.
性能优化是快速报表和交互式分析的关键部分。
Performance optimization is a critical part of fast reporting and interactive analysis.
性能优化是系统管理中最具挑战性的工作之一。
Performance tuning is one of the most challenging aspects of systems administration.
编码和性能优化也是需要不同技能的不同过程。
Coding and performance tuning are also different processes requiring different skills.
性能优化显然不只是运行一些命令然后观察结果。
Performance tuning is clearly more than running some commands and observing the output.
Lisp提供一项称作尾部递归优化的性能优化技术。
Lisp offers a performance optimization called tail recursion optimization.
这就是让性能优化变得如此具有挑战性的原因。
That's what makes performance tuning as challenging as it is.
参考资料部分包括了可在性能优化过程中提供帮助的若干链接。
The Resources section includes several links that can help in the performance tuning process.
作为一名AIX管理员，您应该已经了解性能优化的一些基础知识。
As an AIX administrator, you should already know some of the basics of performance tuning.
同时让您通过访问下面的许多资源来获得关于性能优化的更多信息。
It also gives you access to a number of resources below to get more information on performance tuning.
此外，在您构建云应用程序时，不应将重点放在较小的性能优化上。
Also, when you architect for the cloud, it is important not to focus on performance micro-optimization.
这20%的代码位于“关键路径”上，正是这些方面值得进行性能优化。
This 20% of code is on the "critical path" and it is these areas that are worth optimizing for performance.
与SAX相比，XNI的设计对文档信息集的访问进行了更多的性能优化。
The design of XNI for accessing the document information set is more tuned for performance than that of SAX.
这种功能对于软件开发可能也很重要，特别是对于bug跟踪和性能优化。
This functionality can also be important in software development, particularly in bug tracking and performance optimization.
这种性能优化延迟磁盘上的物理块的分配，直到块被刷入到磁盘时才进行分配。
This performance optimization delays the allocation of physical blocks on the disk until they are to be flushed to the disk.
与大多数性能优化命令不同，nfs4cl还可以用于优化您的系统。
Unlike the vast majority of performance tuning commands, nfs4cl can also be used to tune your system.
典型横切关系包括日志记录、对上下文敏感的错误处理、性能优化以及设计模式。
Typical crosscutting concerns include logging, context-sensitive error handling, performance optimization, and design patterns.
他们尝试对这一集成进行优化，以利用最新的HBase性能优化所带来的好处。
They are looking to optimize this integration, to take advantage of performance optimizations available in the latest HBase.
我在讲述过程中尝试将那些元素指出来，但是在这里将不讨论性能优化问题。
I try to point those elements out along the way, but I won't talk about performance tuning here.
一般来说，只有两种性能优化：对性能产生极大影响的优化和几乎没什么影响的优化。
Generally speaking, there are only two types of performance optimizations: those that make a noticeable impact on performance and those that don't seem to have any noticeable results at all.
是评估网页表现，为开发者提供可行的前端性能优化建议的开源firebug插件。
Page Speed is an open source Firebug add-on for evaluating web page performance, giving developers Suggestions on front-end performance optimizations they can carry out.
当前，人们正在对GNU编译器集进行重大革新，为POWER体系结构而进行性能优化。
Currently, the GNU Compiler Collection is undergoing a massive renovation regarding performance optimization for the POWER architecture.
下次面临难处理的性能优化问题时要记住它——它可能就是避免大的重新设计的关键所在。
Keep it in mind the next time you're facing an intractable performance optimization problem — it may just be the magic bullet that can save you a major redesign.
高速缓存是一种常见的性能优化，允许应用程序重用以前的计算结果，而不是重新进行计算。
Caching is a common performance optimization, allowing the application to reuse the results of a previous calculation instead of recalculating it.
它指的是在一个给定的编程模型中穿越既定的职责部分（比如日志记录和性能优化）的操作。
It refers to the act of cutting across the established divisions of responsibility (such as logging and performance optimization) in a given programming model.
如果正确理解了应用程序的内存要求，则固定堆大小便是一个简单的性能优化问题。
Fixing the heap size is an easy performance optimization if the memory requirements of the application are well understood.
在Web应用程序中获得像桌面软件那样的高速响应体验非常困难，因此性能优化非常重要。
Getting the same responsive feel in a Web application as you have in desktop software can be quite difficult, and performance optimization is incredibly important.
所有这些都是适当的性能优化方法中的一部分，有效地捕获数据，并正确地分析其结果和趋势。
This is all part of appropriate performance tuning methodology; capturing data effectively and properly analyzing the results and the trends.
为了简化性能优化环境和降低出现错误的可能性，您应该使用shell脚本来启动不同的组件。
To simplify the performance-tuning environment and reduce the possibility of introducing errors, you should use a shell script to start up the different components.
ejb本地接口(从ejb 2.0规范开始使用)为共存的EJB提供了性能优化方法。
EJB local interfaces, introduced as part of the EJB 2.0 specification, provide performance optimization for co-located EJBs.
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