asynchrony
n. 不同时性
2026-04-12 14:21 浏览次数 14
n. 不同时性
"the stimulus produced a desynchronizing of the brain waves"
diastolic asynchrony拡张期同调运动不全
Asynchrony Everywhere异步处理
termination asynchrony终止不同步
temporary asynchrony暂时异步性
systolic asynchrony收缩失同步化
electrical asynchrony电异步状态
asynchrony motor异步电动机
hatching asynchrony异步孵化
The benefit of asynchrony is achieved by overlapping the execution of the queries at the remote data sources.
异步的优点是通过在远程数据源上重叠执行查询而取得的。
How much time is saved by the asynchrony in this plan?
在这个计划中,异步节省了多少时间呢?
The best way to understand the impact of asynchrony is through an example.
理解异步的影响的最好方式是通过示例。
These concurrent connections occur because of asynchrony and do not include connections from the query that were added because of some other optimization e.g.
这些并发连接是指因异步而发生的连接,不包括由于其他优化(例如用于组合操作的数据分发等)而增加查询的连接。
This asynchrony also provides perceived responsiveness for users, as well as best case overall throughput for the system as a whole.
这种异步机制还向用户提供可感知的响应性,并向整个系统提供最佳总体流量。
The user or administrator can limit the degree to which asynchrony is used at a query or data source level, in order to limit its impact on local and remote resources.
用户或管理员可以在查询级或数据源级限制使用异步的程度,以限制异步对本地和远程资源所造成的影响。
Thus, the federated queries which benefit the most from asynchrony are those whose remote queries are complex and and for which it is time consuming to return the first row.
因此,能从异步中获得最多好处的联邦查询是那些其远程查询比较复杂,在返回第一行数据之前需要花费较多时间的查询。
Asynchrony must be enabled using one of the controls described in the Expressing resource limitations and its effects on asynchrony section.
必须使用表达资源限制及其对异步的影响中描述的某一种控制方法启用异步。
In the figure below, asynchrony has been enabled, and the optimizer has chosen to place an ATQ operator above the rightmost (pink) SHIP.
在下面的图中,异步已经被启用,优化器已经选择将一个AT Q操作符放在最右边的(粉色)SHIP之上。
In other words, asynchrony enables all remote operations except for the processing of returned data by the federated server to proceed concurrently.
换句话说,异步使得联邦服务器的所有远程操作都可以并发地进行,只有对返回数据的处理除外。
When asynchrony is used, often partners will embed their own correlation logic within their message protocol in order to coordinate which response correlates to which request.
当使用异步通信时,合作伙伴常常将自己的相关逻辑嵌入到消息传递协议中,以调整响应与请求之间的对应关系。
The section thereafter summarizes the scope and impact of asynchrony in federated execution plans.
之后,本节将总结联邦执行计划中异步的适用范围和影响。
But queries that involve only nicknames have only very limited opportunities for such asynchrony 2.
但是,只涉及昵称的查询获得那样的异步性的机会却非常有限2。
It's actually not readily apparent where the asynchrony happens in this simple search box.
到目前为止,还不能明显看出这个简单的搜索框中哪里存在异步性。
In addition, if the remote operations take approximately the same amount of time to return the first row, then the benefit achieved in enabling asynchrony is maximized.
此外,如果远程查询都是执行大约相同一段时间之后返回第一行数据,那么异步带来的好处就可以实现最大化。
This asynchrony can lead to significant improvements in query performance.
这种异步可以显着提高查询的性能。
However, the overlap in remote execution time is enough to bring about significant improvement: the query runs in 432 seconds without asynchrony and 327 seconds with asynchrony, an improvement of 24%.
然而,远程执行时间上的重叠足以带来显着的性能提升:在没有异步的情况下,查询要运行432秒,而在有异步的情况下查询只需运行327秒,性能提高了24%。