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本主題尚未接受評分 - 為這個主題評分

@@CPU_BUSY (Transact-SQL)

SQL Server 2005

傳回 SQL Server 上次啟動之後所花的工作時間。結果是以 CPU 時間遞增 (「刻度」) 來計算，且會針對所有 CPU 來累計，因此，它可能會超出實際的經歷時間。乘以 @@TIMETICKS 便轉換成微秒。

ms186925.note(zh-tw,SQL.90).gif附註：
如果 @@CPU_BUSY 或 @@IO_BUSY 的傳回時間超出大約 49 天的累計 CPU 時間，您會收到算術溢位的警告。在這個情況下，@@CPU_BUSY、@@IO_BUSY 和 @@IDLE 變數的值並不精確。

主題連結圖示 Transact-SQL 語法慣例

複製 

@@CPU_BUSY

integer

若要顯示包含多項 SQL Server 統計資料的報表，其中包括 CPU 活動，請執行 sp_monitor。

下列範例會顯示傳回迄今 (到目前的日期和時間為止) 的 SQL Server CPU 活動。為了避免在將值轉換成微秒時，發生算術溢位，它會將一個值轉換成 float 資料類型。

複製 
SELECT @@CPU_BUSY * CAST(@@TIMETICKS AS FLOAT) AS 'CPU microseconds', 
   GETDATE() AS 'As of' ;

以下為結果集：

複製 
CPU microseconds As of
---------------- -----------------------
18406250         2004-10-22 13:22:50.600
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