SQL Profiler Trace中的CPU和Duration分别使用的是什么单位

从SQL 2005开始, 服务器汇报某个事件的时长使用微秒(microseconds)作为单位.

         1微秒 = 10的-6次方秒

         1秒 = 1000000秒

 

CPU时间使用的是毫秒(Millisecond).

         1毫秒 = 10的-3次方秒

         1秒 = 1000毫秒

 

原文摘抄如下:

Beginning with SQL Server 2005, the server reports the duration of an event in microseconds (one millionth, or 10-6, of a second) and the amount of CPU time used by the event in milliseconds (one thousandth, or 10-3, of a second). In SQL Server 2000, the server reported both duration and CPU time in milliseconds. In SQL Server 2005 and later, the SQL Server Profiler graphical user interface displays the Duration column in milliseconds by default, but when a trace is saved to either a file or a database table, the Duration column value is written in microseconds.

 

参考资料:

Viewing and Analyzing Traces with SQL Server Profiler

http://msdn.microsoft.com/en-us/library/ms175848.aspx

SQL Profiler CPU / duration units

http://stackoverflow.com/questions/976628/sql-profiler-cpu-duration-units