extents
英 [ɪksˈtɛnts]
美 [ɪkˈstɛnts]
n. 程度; 限度; 大小; 面积; 范围
extent的复数
双语例句
- The second problem, of course, is that a table or an index with many highly active extents will suffer from performance degradation due to increased disk head movement and increased contention for head positioning with other objects in the database.
当然，第二个问题是，有很多高度活跃的盘区的一个表或索引将遭遇性能降低，因为磁头移动的增加和磁头与数据库中其他对象的位置争用的增加。 - Ext4 replaces ext3's mechanism with extents to improve allocation and support a more efficient storage structure.
ext4使用区段取代ext3的机制，从而改善了空间的分配，并且支持更加高效的存储结构。 - When using circular logging log file extents are reused once they no longer contain active log data.
使用循环日志记录时，当日志文件扩展不再包括活动数据日志时，会将其进行重新使用。 - When using linear logging on the other hand log file extents will be continually allocated as required.
另一方面，使用线性日志记录时，将根据需要继续分配日志文件扩展。 - Ideally there is a large enough contiguous block of storage to cover all the extents in the partition.
理想情况下，存在一个足够大的连续存储块来涵盖分区中的全部区段。 - Log file extents can be specified as primary or secondary.
日志文件扩展可以指定为主扩展或次扩展。 - Secondary log file extents are allocated dynamically by the queue manager when the primary files are exhausted.
次日志文件扩展由队列管理器在主文件耗尽的情况下动态分配。 - For maximum efficiency, frequently accessed tables should have as few extents as possible.
为达到效率最大化，频繁访问的表区段应当越少越好。 - Extents are a collection of eight physically contiguous pages and are used to efficiently manage the pages.
区是八个物理上连续的页的集合，用来有效地管理页。 - It also includes extents with multi-block and delayed block allocation for performance.
它还包括多块和延迟块分配，以提升性能。