关于advisor运行时的Warning/Messages

苦艾草

             Warnings/messages
Missed Trace by > 2 mph ( 3.2 km/h )
Trace Miss Analysis:
Absolute average difference: 0.16981 mph
Percent of time with trace miss greater than 2 mph (absolute): 4.5455%
Greatest percent difference based on max. cycle speed requested is 9.7113% at 615seconds,(array index 616)
Greatest percent difference is 9.7113% at 615 seconds,(array index 616)
Greatest percent difference is 4.2223 mph at 615 seconds,(array index 616)    有哪位大大知道怎么解决啊？