Amdahl's Law states that the performance improvement to be gained from using some faster mode of execution is limited by the fraction of the time the faster mode can be used.

阿姆达定律表明：通过改进某模式得到的整体性能提高，受限于该改进模式所占的运行时间比例。

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Use this mode to perform any maintenance task, including tasks requiring the execution of SQL and DDL statements, when no other users are connected to the database server.

在没有其他用户连接到数据库服务器的情况下，使用这种模式可以执行任何维护任务，包括执行SQL和ddl语句所需要的任务。

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If performance is important in the above cases, it would be a good idea to disable transaction log archive mode for the duration of their execution.

在上述情况下，如果性能很重要的话，最好是在执行上述操作时禁用事务日志归档模式。

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