| The wait type PREEMPTIVE_OS_REVERTTOSELF is ranked #66 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. The SQL Server PREEMPTIVE_OS_REVERTTOSELF wait type is a type of wait that occurs when a session is waiting for an operation to be completed by the operating system. This type of wait typically occurs when a session is executing a system-level operation, such as reading or writing to a file, creating or destroying a thread, or waiting for a response from the network. When a session is waiting on the PREEMPTIVE_OS_REVERTTOSELF wait type, it means that it is unable to proceed with its current operation until the operating system has completed its work. This can cause delays and slow down the overall performance of the SQL Server instance. To troubleshoot and resolve issues related to the PREEMPTIVE_OS_REVERTTOSELF wait type, it is important to first determine what operation is causing the wait and then investigate why that operation is taking a long time to complete. This may involve looking at the queries or processes that are executing the system-level operation, as well as any other operations that are running concurrently on the SQL Server instance. In some cases, it may be necessary to optimize the queries or processes that are causing the PREEMPTIVE_OS_REVERTTOSELF waits, or to adjust the workload on the SQL Server instance to reduce the occurrence of this wait type. Overall, the PREEMPTIVE_OS_REVERTTOSELF wait type can be a useful indicator of potential performance issues related to system-level operations in SQL Server, and can help DBAs and developers identify and resolve those issues to improve the performance of their databases.
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_GENERICOPS 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_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 |  |
