问：你们做过性能基准测试么？
本文稍后将会介绍更多有关性能基准测试的内容。
You can read more about performance baselines later in this article.
性能基准测试超出了本文的范围，将在以后的文章中讨论。
Performance benchmarks are beyond the scope of this article and will be published in the future.
完整报告包含了在每个云平台的性能基准测试中收集的详细信息。
The complete report contains detailed information collected during the performance benchmarks for each cloud platform.
多数组织都不够成熟，不能提供服务级别的性能基准测试。
Most of the organizations are not mature enough to provide performance bench marks at the service level.
该书提供了大量有关XML数据库产品体系结构、案例研究和性能基准测试的有用信息。
This book is full of useful information on XML database product architectures, case studies, and performance benchmarks.
请继续阅读第2部分，您将会学习在大型数据分区环境中使用性能基准测试，利用DB 2WorkloadManagement，以及配置监控。
Stay tuned for part 2, where you'll learn to take performance baselines, to take advantage of DB2 Workload Management, and to configure monitoring in large data partitioning environments.
本文根据由运行oltp类型的性能基准测试程序(TPC - C、TPC - W、Trade2等)所得到的经验，着重讨论了许多DB 2性能调优技巧。
This article focuses on a number of DB2 performance tuning tips based on lessons learned from running OLTP-type performance benchmarks (TPC-C, TPC-W, Trade2, etc.).
对于顺序和随机写操作，以及顺序读操作来说，它的性能非常优秀，根据Google的 性能基准测试，它能在某些测试项目中得分领先SQLite两个数量级。
The result is good performance for sequential and random writes, and sequential reads, beating SQLite by two orders of magnitude in some tests, according to a Google performance benchmark.
又或者，必须运行性能测试来确定初始基准。
Or, performance tests have to be run to determine initial benchmarks.
在运行基准测试或其他性能测试时，必须谨慎地控制系统上的其他工作。
When running the baseline test or other performance tests, other work on the system must be carefully controlled.
这早在测试阶段就已经完成，可以完善预装载过程并达到启动性能基准。
This was done early in the testing phase to perfect the process of pre-loading and to get a starting performance benchmark.
磁盘上的数据组织是基准性能测试的一个重要因素。
The organization of data on the disks is an important factor for benchmark performance.
这些小基准测试也阐明了存在动态编译器的情况下解释性能结果所面临的挑战。
These small benchmarks also illustrate the challenge of interpreting performance results in the presence of dynamic compilers.
注意，这些结果没有针对最优性能进行调优，不应被视为针对系统的正式基准测试结果，它们只是用于研究目的的结果。
Note that these results are not tuned for optimal performance and should not be considered official benchmark results for the system, but rather results obtained for research purposes.
至于性能评估的其它方面，要知道某个更改是否有益，唯一稳妥的方法就是进行基准测试。
As in other areas of performance evaluation, the only sure way to know if a change has a beneficial effect is to conduct benchmarks.
注意，这个测试并不意味着是这些JAX - RS框架之间的正式基准测试，只是为了向您提供它们的相对性能特征的一般认识。
Note that this test is in no way meant to be a formal benchmark of JAX-RS frameworks and was only done to give you a general idea of their relative performance characteristics.
硬件厂商应该有基准测试数据，这些数据说明预期的内存、CPU (FLOPS)、磁盘和网络性能。
Your hardware vendor should have benchmark data stating the expected Memory, CPU (FLOPS), Disk, and Network performance.
本小节展示了基准测试系统的不同的系统性能测量。
This section presents various system performance measurements of the benchmark system.
从最初的基准测试结果来看，偏向锁提供了最佳的性能，比其他的优化方式更有效。
The initial benchmarking results demonstrated that biased locking provided the best performance gain compared to any of the other available optimizations.
即使在如此狭义的性能定义之下，精确地进行代码基准测试仍然有很多困难。
Even within this limited definition of performance, pitfalls abound in trying to benchmark code accurately.
这能帮助我们更好地理解返回的信息，并根据已发布的基准测试数据比较自己的性能数据。
This helps them to better understand the information returned and relate their performance to the published benchmarks.
要在昵称上测试MQT的性能，我使用适应于联邦环境的部分“TPC - H ”基准测试工作负载。
To test the performance of the MQTs over nicknames we used parts of the "TPC-H" benchmark workload adapted to fit a federated environment.
TPC - h基准测试性能最优化的第一步就是查看可伸缩性。
The first step in maximizing the performance of the TPC-H benchmark is to look at scalability.
图1 中的图显示了单个用户基准测试中7.1.0.2 中的性能提升。
The graph in Figure 1 shows ClearCase Remote Client CM API performance improvements in 7.1.0.2 in single user benchmark tests.
因此，本文使用Sort作为示例测试基准讲解性能调优方法。
So, Sort is used as the example testing benchmark to show you the performance tuning method.
除了前面讨论的用于Web服务测试的工具，IBM还有一个叫做Trade3的工具，它是websphere端到端基准测试和性能示例应用程序。
In addition to the previous tools discussed for Web serving testing, IBM has a tool called Trade3, which is the WebSphere end-to-end benchmark and performance sample application.
为了展示模块化引发的性能成本，这个基准测试的3个模块被组织为两个或一个SCA模块。
In order to demonstrate the performance costs incurred with modularization, the benchmark's three modules were organized into two and one SCA module.
以下结果来自评估电能和性能的SPECpower_ssj2008基准测试。
The following results are from the SPECpower_ssj2008 benchmark that evaluates both power and performance.
同类中性能最佳——2007年7月的SPECjAppServer基准测试结果证明了该事实。
Best-in-class performance - as evidenced in a July 2007 SPECjAppServer benchmark result.
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