Thus, the read operations compete with log writing and the write operation for data pages from the buffer pool.
因而，读操作与日志写和缓冲池中的数据页的写操作之间存在竞争。
2
The UNION operation repeats this step until the SHIP buffer is empty.
UNION操作符重复这个步骤，直到ship缓冲区为空。
3
The overall buffer size has a significant effect on DB2 performance, because a large number of pages can significantly reduce I/O, which is the most time-consuming operation.