| The wait type PREEMPTIVE_OS_FLUSHFILEBUFFERS is ranked #65 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 PREEMPTIVE_OS_FLUSHFILEBUFFERS wait type in SQL Server is a type of wait that occurs when a task is waiting for the operating system to flush the contents of a file buffer to disk. In SQL Server, data is stored in files on the computers hard drive, and the operating system uses a system of buffers to temporarily store data in memory before it is written to the files on disk. The PREEMPTIVE_OS_FLUSHFILEBUFFERS wait type occurs when a task is waiting for the operating system to write the contents of a file buffer to disk. This can happen for a number of reasons, such as when the buffer is full and needs to be written to disk to make room for more data, or when the database is being shut down and the contents of the buffers need to be written to the files on disk. This wait type can cause performance issues if it occurs frequently, as it means that tasks are waiting for the operating system to flush the file buffers to disk. To resolve this issue, it is important to identify the cause of the PREEMPTIVE_OS_FLUSHFILEBUFFERS wait type and take steps to address it. This may involve optimizing the way the database writes data to the files on disk, or taking other corrective action. In summary, the PREEMPTIVE_OS_FLUSHFILEBUFFERS wait type in SQL Server is a type of wait that occurs when a task is waiting for the operating system to flush the contents of a file buffer to disk. It can cause performance issues if it occurs frequently, and it is important to identify the cause and take appropriate action to resolve it. Applies toRelated WaitsPREEMPTIVE_COM_QUERYINTERFACEPREEMPTIVE_FILESIZEGET PREEMPTIVE_HADR_LEASE_MECHANISM 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_DEVICEOPS PREEMPTIVE_OS_DTCOPS PREEMPTIVE_OS_ENCRYPTMESSAGE PREEMPTIVE_OS_FILEOPS 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_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_WAITFORSINGLEOBJEC PREEMPTIVE_OS_WRITEFILEGATHER PREEMPTIVE_XE_CALLBACKEXECUTE PREEMPTIVE_XE_GETTARGETSTATE PREEMPTIVE_XE_SESSIONCOMMIT PREEMPTIVE_XE_TARGETFINALIZE PREEMPTIVE_XE_TARGETINIT See AlsoAll Wait Types |  |