Statement - level recompilation benefits performance because , in most cases , a small number of statements causes recompilations and their associated penalties , in terms of cpu time and locks 语句级重新编译有助于提高性能,因为在大多数情况下,只有少数语句导致了重新编译并造成相关损失(指cpu时间和锁) 。
By gathering statistics on these events , a profiler can build a comprehensive picture of which routines used the most cpu time , when garbage collections occurred , if exceptions were thrown , and so on 通过收集有关这些事件的统计信息,探查器可以建立对哪些例程占用大多数cpu时间、何时发生垃圾回收以及是否引发异常等情况的全面了解。
However , when facing complex cases , cfd software requires large memory and cpu time . for ordinary user who has no acess to expensive computer resource , efficient programming is of the most impotant 然而, cfd技术对计算机的要求非常高,一般空调室内,尤其是几何空间构造复杂的空调室内环境需要用巨型机作并行运算才能得出精度较高的结果。
Bcm is planned to find only the boundary cells and boundary points so as to save much cpu time which traditional bucket algorithm must pay for the finding all the points inside and outside the object 该方法是一种全自动接触搜寻法,通过只寻找边界子域和边界点,从而避免了传统的一体化搜寻用整个实体的点宋搜寻接触对所带来的额外的cpu耗时。
A number of tree - walking optimizations are built into this macro , giving you linear - o in big - o notation - efficiencies in processing a given sxml structure ; a naive approach could easily use more memory or cpu time . see resources 这个宏对树遍历进行了一些优化,可以以线性效率用大o表示法为o ( n )处理给定的sxml结构,普通的方法很容易会占用更多的内存和cpu时间。
Because memory management consumes cpu time , and because we are interested in measuring how much cpu time this code fragment consumes , the execution of any other thread in the system , such as gc , will distort our test results 因为内存管理占用cpu时间,并且因为我们感兴趣的是测量这段代码占用了多少cpu时间,因此系统中执行的任何其他线程如gc ,都会扭曲我们的测试结果。
We only need to apply an existing clustering once to computing k - medians , on demand , which reduces cpu time significantly . we conducted extensive experimental studies , and show that our approaches outperform other well - known approaches 因此,在不同时段上所产生的误差会随着流数据注入而积累起来,这使得大多数算法只能取得较差的近似结果,在实际运算中模糊不同算法的差异。
In aim solver , the convergence rate depends on spectral properties of the aim matrix , and the near - zone threshold distance has a dramatic impact on the memory and cpu time . a poorly conditioned matrix occurs through aim when a smaller near - zone 另外,自适应积分方法计算中,在保证计算精度的条件下,较小的耦合距离将极大减小内存需求和计算的复杂度,但同时误差积累也导致矩阵的性态变坏。
The first problem identified in the logging service example was the overhead of parsing the xml message - how much cpu time and memory space does it take to read the message , parse into values , and copy those values to the database table row 登录服务这个例子中发现的第一个问题是解析xml消息的开销:需要多少cpu时间和存储空间用于读取消息、解析成数据和将这些数据复制到数据库的表行中?
CPU time (or CPU usage, process time) is the amount of time for which a central processing unit (CPU) was used for processing instructions of a computer program, as opposed to, for example, waiting for input/output (I/O) operations.