A buffer pool is an area of storage in memory into which database pages (containing table rows or index entries) are temporarily read and changed.

缓冲池是内存中的一块存储区域，用于临时读入和更改数据库页(包含表行或索引项)。

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In Listing 2, the function allocates a piece of memory containing a buffer and initializes its entries to indicate an empty abstract buffer.

在清单2中，该函数分配了包含一个Buffer的内存块，并初始化它的条目以指明它是一个空抽象缓冲区。

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If the redo log buffer fills, or another transaction commits, LGWR flushes all of the redo log entries in the redo log buffer to a redo log file, even though some redo records may not be committed.

例如如果重做日志缓冲满了，或者有其它的事务提交了。LGWR进程会把所有在重做日志缓冲中的重做日志事项写入重做文件，即使是一些重做记录可能还没有提交。

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