extents

英 [ɪksˈtɛnts]

美 [ɪkˈstɛnts]

n.  程度; 限度; 大小; 面积; 范围
extent的复数

计算机

双语例句

• The following illustration shows the sequence of pages used by the database engine to allocate and manage extents.
  下图显示了数据库引擎用来分配和管理区的页顺序。
• Modify the entry for LogPrimaryFiles to the required value to change the number of primary extents.
  将LogPrimaryFiles条目修改为所需的值，以更改主扩展的数量。
• Although you can allocate additional extents, the blocks themselves are allocated separately.
  尽管你可以进行额外的扩展，但是块本身是被隔开分派的。
• 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。
• 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。
• In2008, a majority of safety barrier and isolator suppliers see a declining performance to different extents.
  2008年，大部分安全栅和隔离器供应商业绩出现了不同程度的下滑。
• 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。
• However, the REPACK option does not necessarily reduce the number of extents.
  然而，REPACK选项不一定减少盘区数量。
• 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。
• Use oncheck-pt to check on the number of partition extents after defragmentation.
  可在碎片整理完成后，利用oncheck-pt来检查分区区段的数量。