| The wait type PREEMPTIVE_OS_GENERICOPS is ranked #59 by Stedman Solutions and Database Health Monitor. Wait statistics, in the context of SQL Server, refer to the amount of time that a query spends waiting to access data in the database. When a client application requests data from the database, the request is placed in a queue and the client application must wait for its turn to access the data. The time that the query spends waiting is called a "wait" and is tracked by SQL Server. This information can be used to identify potential performance bottlenecks and optimize the performance of the database. Wait statistics are commonly used by database administrators to diagnose and troubleshoot performance issues in SQL Server. A SQL Server PREEMPTIVE_OS_GENERICOPS wait type occurs when a task is waiting for a generic operation to complete in the context of the operating system (OS). This wait type indicates that the task is executing an OS-level system call, such as a file or registry operation, and is waiting for the OS to respond. The PREEMPTIVE_OS_GENERICOPS wait type is a type of "preemptive" wait, which means that the task is running in the context of the OS rather than in the context of SQL Server. This is because some operations, such as file I/O and registry access, are inherently OS-dependent and must be performed outside of the SQL Server process. Excessive PREEMPTIVE_OS_GENERICOPS waits can indicate a potential performance issue, such as slow file I/O or registry access. To troubleshoot this issue, you can use the Database Health Monitor to track OS-related metrics, such as file I/O rates and registry access, and identify any bottlenecks. It is important to note that PREEMPTIVE_OS_GENERICOPS wait types are not always a cause for concern. In fact, they are a normal and expected part of how SQL Server accesses the OS for various operations. However, if a task is experiencing excessive PREEMPTIVE_OS_GENERICOPS waits, it could be an indication of a performance issue that needs to be addressed. In summary, a SQL Server PREEMPTIVE_OS_GENERICOPS wait type occurs when a task is waiting for a generic operation to complete in the context of the OS. This wait type is normal and expected, but if excessive, it can indicate a potential performance issue related to slow file I/O or registry access. To troubleshoot PREEMPTIVE_OS_GENERICOPS waits, you can use the Database Health Monitor to track OS-related metrics and identify any bottlenecks.
Applies toRelated WaitsPREEMPTIVE_COM_CREATEACCESSORPREEMPTIVE_COM_GETDATA PREEMPTIVE_COM_QUERYINTERFACE PREEMPTIVE_COM_RELEASE PREEMPTIVE_COM_RELEASEROWS PREEMPTIVE_COM_SEQSTRMREAD PREEMPTIVE_COM_SETPARAMETERINFO PREEMPTIVE_COM_SETPARAMETERPROPE PREEMPTIVE_FILESIZEGET PREEMPTIVE_HADR_LEASE_MECHANISM PREEMPTIVE_OLEDB_RELEASE PREEMPTIVE_OLEDBOPS PREEMPTIVE_OS_AUTHENTICATIONOPS PREEMPTIVE_OS_AUTHORIZATIONOPS PREEMPTIVE_OS_AUTHZGETINFORMATIO PREEMPTIVE_OS_AUTHZINITIALIZECON PREEMPTIVE_OS_AUTHZINITIALIZERES PREEMPTIVE_OS_BACKUPREAD PREEMPTIVE_OS_CLOSEHANDLE PREEMPTIVE_OS_CLUSTEROPS PREEMPTIVE_OS_CREATEFILE PREEMPTIVE_OS_CRYPTACQUIRECONTEX PREEMPTIVE_OS_CRYPTIMPORTKEY PREEMPTIVE_OS_CRYPTOPS PREEMPTIVE_OS_DELETEFILE PREEMPTIVE_OS_DEVICEIOCONTROL PREEMPTIVE_OS_DEVICEOPS PREEMPTIVE_OS_DTCOPS PREEMPTIVE_OS_ENCRYPTMESSAGE PREEMPTIVE_OS_FILEOPS PREEMPTIVE_OS_FLUSHFILEBUFFERS PREEMPTIVE_OS_GETCOMPRESSEDFILES PREEMPTIVE_OS_GETDISKFREESPACE PREEMPTIVE_OS_GETFILEATTRIBUTES PREEMPTIVE_OS_GETFINALFILEPATHBY PREEMPTIVE_OS_GETPROCADDRESS PREEMPTIVE_OS_LIBRARYOPS PREEMPTIVE_OS_LOADLIBRARY PREEMPTIVE_OS_LOGONUSER PREEMPTIVE_OS_LOOKUPACCOUNTSID PREEMPTIVE_OS_MOVEFILE PREEMPTIVE_OS_NETVALIDATEPASSWOR PREEMPTIVE_OS_PIPEOPS PREEMPTIVE_OS_QUERYREGISTRY PREEMPTIVE_OS_REPORTEVENT PREEMPTIVE_OS_REVERTTOSELF PREEMPTIVE_OS_SECURITYOPS PREEMPTIVE_OS_SERVICEOPS PREEMPTIVE_OS_SQLCLROPS PREEMPTIVE_OS_VERIFYTRUST PREEMPTIVE_OS_WAITFORSINGLEOBJEC PREEMPTIVE_OS_WRITEFILEGATHER PREEMPTIVE_SERVICE_CONTROL_MANAGE PREEMPTIVE_SERVICE_CONTROL_MANGE PREEMPTIVE_SHAREDMEM_GETDATA PREEMPTIVE_XE_CALLBACKEXECUTE PREEMPTIVE_XE_GETTARGETSTATE PREEMPTIVE_XE_SESSIONCOMMIT PREEMPTIVE_XE_TARGETFINALIZE PREEMPTIVE_XE_TARGETINIT See AlsoAll Wait Types |  |
