procedure Flush

Available In: Server Applications

Use this method to request that the operating system flush any file writes that have been buffered for the file by the file system but not physically written to disk yet. The file system in most operating systems is buffered so that the most recently accessed areas of a file are cached in memory instead of being written to disk. This also applies to file writes, which will often be kept in memory until all open instances of the file are closed or the memory needs to be used for other purposes.