The statistical information is stored in a circular buffer, which the DBA can resize.
这种统计信息存储在一个循环缓冲区中，DBA可以设置该缓冲区的大小。
One method that works very well is to maintain a history of the last few messages in a circular buffer that can then be dumped when an error condition occurs.
一个非常好的做法是在循环缓冲器中维护最近几条消息的历史记录，当错误情况出现时，可以转储循环缓冲器。
The journal is a special file that logs the changes destined for the file system in a circular buffer. At periodic intervals, the journal is committed to the file system.
所谓日志就是一种特殊的文件，它会在一个循环的缓冲区内记录文件系统的修改，然后将其定期提交到文件系统。
The journal is a special file that logs the changes destined for the file system in a circular buffer. At periodic intervals, the journal is committed to the file system.
所谓日志就是一种特殊的文件，它会在一个循环的缓冲区内记录文件系统的修改，然后将其定期提交到文件系统。
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