另一个任务可能包括需求的详细说明，并附有编写用例，定义性能基准点的个人行为，等等。
Another Task might involve the elaboration of the Requirements with individual activities for writing use cases, defining performance benchmarks, and so forth.
对于将在第2部分中讨论的性能测试，我用每一种数据绑定框架来生成代码。
For the performance tests I'll cover in Part 2, I generated code using each of these data binding frameworks.
这将有助于避免出现资源争用，资源争用可能会严重降低性能，或者会导致出现记录死锁情况。
This will help to avoid the chance for resource contention that can severely degrade performance, or lead to a record dead lock condition.
这样做还可以通过减少L3缓存和内存争用，从而改善了性能。
This can also improve performance by reducing L3 cache and memory contention.
图3用红色高亮显示了命中率，这表示存在性能问题。
Figure 3 shows the hit ratio highlighted in red, which indicates a performance problem.
开发——调试和性能监控的用例能够以可重复的方式方便的搭建起来。
Development - Debugging and performance monitoring scenarios can be easily setup in a repeatable fashion.
性能测试人员也用系统测试环境做他们的工作。
Performance testers might use a system test environment to do their work as well.
首先，SOA设计常常忽视了用中间层服务缓冲来提高SOA性能的可能性。
First, SOA designs often overlook the potential for mid-tier service caching to accelerate SOA performance.
因此可以用实际的性能数据来选择一种算法评估方法，以改善项目评估结果和项目计划。
Then, a selected algorithmic method can be configured using actual achieved performance data, and reapplied to improve the project estimate and the project plan.
最好的做法就是用新眼光来审视一下你的性能架构，看你能否从大型的进程内缓存获益。
The Best Practice is to look at your performance architecture with new eyes and see if you can benefit from very large in-process caches.
可以推断一下：一旦开发人员开始用缓存解决性能问题，他们就能看到缓存的价值。
The reasoning: once a developer starts using caching to solve performance issues they see its value.
如果同步时还发生锁定争用，那么性能上付出的代价会大得多，因为会需要几个线程切换和系统调用。
If the synchronization actually requires contending for the lock, the performance penalty is substantially greater, as there will be several thread switches and system calls required.
我们的性能测试是用一个受支持的远程数据源进行的。
Our performance tests were conducted with a supported remote source.
还有一个选择是用Clojure来解决性能瓶颈。
Another option is to use Clojure for performance bottlenecks.
高性能无争用并发机制的即时更新。
In-place updates for high-performance contention-free concurrency.
服务器性能描述：用ApacheJMeter 进行负载测试
Server performance characterization: Load testing with Apache JMeter
应用程序的性能可以用两个明显的属性来描述：吞吐量和响应时间。
The performance of applications can be described in terms of two distinct properties: throughput and response time.
并发的业务查询能拥有更好的性能：mdc表减少了页面争用的锁，这一点同时也有利于并发业务查询的性能。
Better performance for concurrent business queries: Because MDC tables reduce page contention and locking, this also reduces disruption to the performance of concurrent business queries.
我还要用到这里描述的样本用例，通过减少远程调用的数量优化实例的性能。
I will use the sample use case described here and optimize its performance by reducing the number of remote calls.
用平均未对齐时间除以平均对齐时间所得的值来确定所应用的不合理对齐对性能的影响程度。
The average unaligned time was divided by the average aligned time to determine how much of a performance hit improper alignment imposed.
为了准确地用动态工作负载度量生产服务器的性能，我们需要度量每 15 分钟活动用户的成本。
To accurately measure the performance in a production server with a dynamic workload, we need to measure the cost per active 15-minute user.
该视图可以帮助解决锁争用问题以及性能问题。
This view can help with the resolution of lock contention problems and performance issues.
您可以用多种方法在实际应用程序中改进性能。
You can improve the performance in a real application in several ways.
“研究人员用一个领域的高性能来推测其他地方的缺陷，”道森说。
"The researchers use the higher performance in one area to speculate about deficit elsewhere," says Dawson.
查询是计数器的集合，它是用自定义代码创建的，用于管理性能数据的集合。
A query is a collection of counters, created in your custom code, to manage the collection of performance data.
实施一个执行用例的性能工具的性能测试。
Implement a performance test with a performance tool that exercises this use case.
大多数锁都不是频繁争用的，所以改善非竞争锁定的性能可以实际地改善应用程序的整体性能。
Most locks are not frequently contended, so improving the performance of uncontended locking can improve overall application performance substantially.
例如，通过对那些经常调用的函数进行优化，您就可以用最少的努力来获得最佳的性能。
For example, by optimizing those functions that are called most often, you can get the greatest performance benefit from the least amount of effort.
我们的测试表明，用远程调用来检索这些信息对性能会有负面影响。
Our tests indicated that remote calls to retrieve this information would adversely affect performance.
我们的测试表明，用远程调用来检索这些信息对性能会有负面影响。
Our tests indicated that remote calls to retrieve this information would adversely affect performance.
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