This algorithm is able to schedule tasks according to the actual execution cost of tasks.
这个算法根据任务的实际执行代价来调度任务。
A similar phenomenon of hidden execution cost and thus careless programming can be observed with SQL.
类似的现象，因此小心隐藏成本执行程序可观察的SQL。
The mediation can select services based on the endpoint or on the service quality, such as response time and execution cost.
中介可以基于端点或服务质量(例如响应时间和执行成本)选择服务。
Additionally, clients can select among multiple Web services based on different parameters, such as response time and execution cost.
此外，客户端可以基于不同的参数在多个Web服务之间做出选择，例如响应时间和执行成本。
At last, the execution cost and lane equilibrium were integrated, the best one from the leveled lane models was selected as the final business process.
最后，综合流程的执行代价和泳道的均衡度，从层次泳道化模型中选择最优者为最终的业务流程建模。
Other options for dynamically selecting Web services (such as complex expressions that determine least execution cost or the best quality) are not covered here.
本文不介绍用于动态选择Web服务的其他选项(例如确定最低执行成本或最佳质量的复杂表达式)。
The risks are from electricity market undulation, the rise of policies execution cost, inertness after finishing the quotient and the policies invalidation.
而实施后的风险主要来自于电力市场波动、政策执行成本上升、完成配额标准后的“惰性”和政策失效等四个方面。
It estimates the execution cost of each potential access plan based on the statistics data stored in catalog and statistics tables, and selects the one with the lowest cost.
它会基于存储在目录和统计表中的统计数据而评估每一个可能的存取计划的执行开销，然后选择最低开销的存取计划。
The way to lower the policy execution cost mainly lies in a sound policy system, strengthening the coordination between the policy systems and optimizing the policy resources.
降低政策执行成本的路径主要在于健全政策体制，加强政策系统之间的协调，实现政策资源的优化。
While it may seem that the access plan in Figure 5 is simpler, it comes with a higher estimated execution cost because no index could be exploited to filter out non-qualifying rows.
虽然看上去图5中的访问计划更简单，但是它的预计执行成本更高，因为不能利用索引过滤不符合要求的行。
The simulation results show that MCUD algorithm further decreases the total execution cost and total execution time while meeting the user-designated deadline in comparison with other algorithms.
仿真实验表明，MCUD相比于其他算法，在满足总的最后期限的前提下更进一步地降低了执行成本和执行时间。
This paper builds on and extends existing literature on execution cost and expected return in quote - driven stock markets where market makers play a leading role in determining bid - ask spreads.
证券交易的执行成本是信息不对称和市场供需不均衡时投资者买卖证券的风险补偿，是资产定价和市场微观结构的重要研究课题。
So we added indexes on those joining columns and from the following query execution plan, we can see the query cost is greatly reduced.
因此，我们在这些连接列上添加了索引，从下列查询执行计划中我们可以看到，查询成本减少了很多。
Although JIT compilation provides some advantages for speeding up execution, it does so at the cost of larger amounts of memory.
虽然JIT编译为加快执行提供了一些优势，但是这是以巨大的内存为代价进行的。
The optimizer chose this query plan because the estimated cost for its execution was the lowest among all the evaluated plans.
优化器将选择该查询计划，因为其执行的估算成本是所有被估计划中最低的。
These visualizations include cost based information derived from the query execution.
这些可视化包括来自查询执行的基于成本的信息。
The optimizer considers star join optimization when appropriate and decides on star join plan based on cost considerations in order to come up with best execution plan for a star join query.
为了实现星型连接查询的最佳执行计划，优化器在适当的时候会考虑星型连接优化，并根据成本因素来决定星型连接计划。
As expected, the cost of replication adds significantly to the execution time of a transaction.
如预期一样，同步复制的代价使事务执行时间明显延长。
The last two columns show the CPU cost and collection overhead for just the Execution Group address space.
最后两列显示了CPU成本和相应的执行组地址空间的收集开销。
The cost can be one of the following metrics: execution time per query execution, user CPU time per query execution, and system CPU time per query execution.
这里所说的成本可能是下面的度量之一：每次查询执行的执行时间、每次查询执行的用户CPU时间、以及每次查询执行的系统CPU时间。
IBM's JVM implementation includes an option that turns on automatic JNI checks, at the cost of slower execution.
IBM的JVM实现包括开启自动JNI检测的选项，其代价是较慢的执行速度。
The ideal threshold for choosing between sequential and parallel execution is a function of the cost of coordinating the parallel tasks.
用于选择顺序和并行执行方法的理想阙值是协调并行任务的成本。
A functional index incurs the additional cost of function execution.
函数索引还会产生额外的函数执行开销。
The optimizer relies on statistics to properly cost alternative query execution plans (QEPs) and choose the most optimal plan.
优化器是依靠统计信息来计算可选查询执行计划（QEP）的开销，同时选择出最优的计划。
If the cost estimatd does not correctly describe the real cost during SQL execution, the access plan picked by the optimizer may not be optimal.
如果评估得到的开销不能够正确反映SQL执行中的实际开销，那么优化器所选择的存取计划可能不是最优的。
Or, at a much higher cost of collection, it's possible to calculate an approximation of the percentage of overall CPU resources consumed by the thread for an execution.
或者，如果收集成本特别高的话，可以计算线程在执行时占用CPU资源的百分比的近似值。
DB2 9.7 disregards this syntactical difference and chooses the cheaper of the two execution plans in Table 5, based on cost and cardinality estimates.
DB 2 9.7忽略了这个语法差别，并选择表5中开销更小的执行计划。
Building such a message will cost some coding effort and is slow in its execution.
创建这类消息会花费一些编码工作量并且在执行时速度比较慢。
The optimizer uses a sophisticated cost-benefit model to consider placing TQ operators directly above some of the SHIP operators found in federated execution plans.
优化器使用高级的成本效益模型，将 TQ操作符直接放在联邦执行计划中发现的一些SHIP 操作符之上。
By internal statistics, I mean the statistics in the system catalogs that the optimizer USES to determine the lowest-cost query execution plan.
通过内部统计数据，我指的是系统目录中的统计数据，优化器可以确定最低成本的查询执行计划。
应用推荐