他介绍了profiler工具以及如何使用它诊断运行时的性能热区。
He explained the profiler tool features and how to use it to diagnose runtime performance hotspots.
设计目标是增强复杂程序运行时的性能和PHP自身代码的模块性。
The design goals were to improve performance of complex applications, and improve the modularity of PHP's code base.
在相同的硬件上，64位运行时的性能有时还会比相应的32位运行时慢。
A 64-bit runtime's performance can also be slower than the corresponding 32-bit runtime on the same hardware.
尽管未使用的导入不会影响到运行时的性能，但是它们会混淆读者的思想并影响代码的可读性。
Although unused imports do not affect runtime performance, they can confuse the reader and affect the readability of the code.
某些情况下，如果语句包含主机变量、参数标记或特殊寄存器那么访问路径在运行时的性能不会很好。
In some cases, the access path does not perform well at runtime if the statement contains host variables, parameter markers, or special registers.
NETFramework 3.5运行时的性能也有了显著提升，我们精简了CLR的线程池，使得各种类型的多线程应用程序得到性能改进。
Significant performance improvements were also made in the.net Framework 3.5 runtime to streamline the CLR thread pool to help multithreaded applications of all kinds.
你在为运行时性能权衡编程效率、安全、软件可靠性而做出的决定是否是一个根本错误？
Wasn't your decision to trade off programmer efficiency, security, and software reliability for run time performance a fundamental mistake?
重要运行时参数的度量，包括内存使用、性能和代码覆盖。
Measurement of vital runtime parameters, including memory usage, performance, and code coverage.
在运行时，有几个方面也具有显著改进的性能。
At runtime, several scenarios have greatly improved performance as well.
该代码含义模糊(即简短)，从而可提高应用程序的运行时性能。
It is obfuscated, or condensed, to improve the runtime performance of the application.
使用以xml为中心的方法时应该能得到更好的运行时性能，因为并不会创建额外的对象，因而不需要进行垃圾回收。
You should expect better run time performance using this XML-centric approach, since you do not create extra objects, which requires garbage collection.
xml索引、查询优化、存储管理和其他DB 2服务有助于确保出色的效率和运行时性能。
XML indexing, query optimization, storage management, and other DB2 services help ensure efficiency and strong runtime performance.
在运行时，用户的项目必须不以牺牲性能为代价；这直接排除了大多数反射方法的可能性。
The user's project must not compromise performance at runtime; this immediately rules out most reflective approaches.
字节码工具：在运行时修改应用的字节码，以注入性能收集器。
Bytecode instrumentation: modifying the bytecode of an application at runtime to inject performance collectors.
理解REOPT如何影响DB 2优化器的行为及运行时性能？
Understand how REOPT affects the behavior of the DB2 optimizer and runtime performance.
Spring提供了基础设施来开发具有更高效率和运行时性能的组件，还改进了测试覆盖率和应用程序质量。
Spring provides the infrastructure to develop your components with increased productivity and runtime performance, and also improves test coverage and application quality.
支持RETE算法的高性能运行时引擎。
High performance runtime engine that supports rete algorithm.
然而最值得关注的改变要数groovy的运行时性能改进。
However, the most noticeable changes will be in the general runtime performance improvements of Groovy.
通过尝试本文所给出的示例，您就能够体验到如何使用REOPT选项来提高那些包含主机变量或参数标记的查询的运行时性能。
Try out the examples in this article to experience how you can improve runtime performance for queries that contain host variables or parameter markers by using the REOPT option.
开始对系统进行监视的最佳时间是当您首次将系统应用到生产环境中并且正常运行时，而不是等到用户抱怨系统的性能非常糟糕的时候。
The best time to start monitoring your systems is when you have first put your system in production and it is running well, rather than waiting until your users are screaming about slow performance.
但是JIT编译器具有一个有限的编译时预算，而且会影响程序的运行时性能。
But JIT compilers have only a limited compile-time budget and can impact the program's run-time performance.
静态编译可以产生最佳的交互式性能，因为没有运行时编译行为来影响用户预期的响应时间。
Interactive performance is best covered by static compilation because no run-time compilation activity interferes with the user's response-time expectations.
另外，它与DB 2优化器紧密集成，提供了很好的运行时性能。
Additionally, a tight integration into the DB2 optimizer provides for strong run time performance.
表格中的数据是同步版本的运行时间相对于非同步版本的运行时间的比率；它显示了同步的性能损失。
The data in the table is the ratio of run time of the synchronized version to the unsynchronized version; it shows the performance penalty of synchronization.
这里有必要提到现在支持在声明的全局临时表中包含xml列，因为这可以帮助程序员提高应用程序的运行时性能。
New support for including XML columns in declared global temporary tables deserves brief mention, because it can help programmers to improve the runtime performance of their applications.
性能、效率和成本问题包括资产重用、开发的速度和成本以及运行时性能。
Performance, efficiency, and cost issues include asset reuse, speed and cost of development, and runtime performance.
学习如何利用数据库管理系统中的xml索引和查询过滤功能来确保强健的运行时性能。
Learn how to leverage XML indexing and query filtering capabilities in a database management system to ensure strong runtime performance.
XML数据和索引的压缩，这会改进某些工作负载的存储效率和运行时性能。
Compression of XML data and indexes, which improves storage efficiency and runtime performance for certain workloads.
当使用静态SQL时，执行sql语句的准备步骤是在应用程序执行之前就进行的，因此可在运行时取得更好的性能。
With static SQL, the preparation steps for executing a SQL statement occur before the application is ever executed, thus offering the opportunity for better performance at runtime.
另外，分解的XML数据的特定部分的运行时查询和更新性能通常是可预知的。
In addition, runtime query and update performance of specific portions of the decomposed XML data is generally predictable.
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