The main reason to use threads is to boost program performance.
使用线程的主要原因是要提高程序性能。
Quantify tracks program performance and calling behavior, so you can see execution flow and identify bottlenecks.
Quantify追踪程序性能和调用行为，因此您能够发现执行流并识别出瓶颈。
It's not hard to see why synchronization can have a significant effect on program performance; flushing the cache frequently can be expensive.
不难看出为什么同步会对程序的性能影响这么大；频繁地刷新缓存代价会很大。
Would overall program performance be harmed?
是否整个程序的性能会受到损害？
Total time dedicated to program performance will be 90 minutes.
总共节目表演时间为90分钟。
Often, program performance in one area must be sacrificed for the sake of the general performance of the software.
通常，程序在一个方面的表现必须要为软件的整体性能做出牺牲。
Communication overhead is an important factor which affects program performance in massively parallel processing systems.
在大规模并行处理系统中，通讯开销是影响程序性能的一个重要因素。
Memory wall is an important factor that effects program performance optimization. And its alleviation relies on memory optimization of the program.
存储墙是影响单机性能优化的重要因素，其缓解依赖于对程序进行存储优化。
While present parallel programs mostly machine dependent, so the transportability of parallel programs are very poor and it is very difficult to predict the program performance.
而现有的并行程序绝大多数是依赖机器的，因此并行程序的可移植性差且难于预测性能。
Parallel processing of multiple threads can greatly improve program performance, but it can also make debugging more difficult because it introduces the need to keep track of multiple threads.
多个执行绪的平行处理可以大幅改进程式效能，但由于带来了追踪多个执行绪的需要，也可能会增加侦错的困难度。
This paper introduced a distributed fiber optic sensing system for humidity measurement -its principle, structures, working program, performance, and application.
本文介绍了分布光纤传感系统的原理，并在实验的基础上介绍了它的结构、工作程序、性能及应用。
This paper introduced a distributed fiber optic sensing system for humidity measurement -its principle, structures, working program, performance, and application.
本文介绍了分布光纤传感系统的原理，并在实验的基础上介绍了它的结构、工作程序、性能及应用。
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