日志页面读(logpagesread)是日志记录器(logger)从磁盘读取的日志页面的数目，而日志页面写(log pages written)是日志记录器(logger)写入磁盘的日志页面的数目。
Log pages read is the number of log pages read from disk by the logger, while log pages written is the number of log pages written to disk by the logger.
从DB 2写一条日志记录，到QCapture读这条日志记录，这之间经历的时间就是日志延时。
The time between when DB2 writes a log record and QCapture reads it is the log latency.
从DB 2写一条日志记录，到QCapture读这条日志记录，这之间经历的时间就是日志延时。
The time between when DB2 writes a log record and QCapture reads it is the log latency.
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