OSRunPriority Property

后续版本的 Microsoft SQL Server 将删除该功能。请避免在新的开发工作中使用该功能，并着手修改当前还在使用该功能的应用程序。

The OSRunPriority property controls execution thread scheduling for job steps executing operating system tasks.

语法

object
.OSRunPriority [=value]

Parts

• object
  An expression that evaluates to an object in the Applies To list.

• value
  A long integer that specifies an operating system task execution priority level as described in Settings.

Data Type

Long, enumerated

Modifiable

Read/write

Prototype (C/C++)

HRESULT GetOSRunPriority(
SQLDMO_RUNPRIORITY_TYPE* pRetVal);
HRESULT SetOSRunPriority(
SQLDMO_RUNPRIORITY_TYPE NewValue);

Settings

Constant	Value	Description
SQLDMORunPri_AboveNormal	1	Slightly elevated priority.
SQLDMORunPri_BelowNormal	-1	Reduced priority.
SQLDMORunPri_Highest	2	Highest priority level allowed by the process priority.
SQLDMORunPri_Idle	-15	No CPU time is spent on this thread unless all other threads are blocked.
SQLDMORunPri_Lowest	-2	Lowest priority level allowed by the process priority.
SQLDMORunPri_Normal	0	Standard priority level.
SQLDMORunPri_TimeCritical	15	No CPU time is given to other processes while the job step executes.
SQLDMORunPri_Unknown	100	The value is not valid.

备注

Set the OSRunPriority property to alter execution thread scheduling for job steps executing operating system commands. The property specifies a thread priority relative to that granted to an instance of Microsoft SQL Server.

注意：
Setting operating system thread priority can have adverse effects on other processes running on the server. Care should be taken when specifying priorities above normal.

Applies To:

JobStep Object