This is one of the technical infrastructure data gathering methodologies and performance recommendations for server hygiene. The full list is defined in the Server Hygiene topic.
When the application server is overloaded and it is not due to too many and/or too large import files, it can be caused by large number of leftover or temporary files, e.g., from previous migrations. A large number of these unnecessary files can also cause the system to be slow.
There is no single location for these unnecessary files to reside on the application server. However, sometimes unnecessary files are located in temporary directories such as tmp, temp, or temporary.
Important: Be careful with temporary files the STEP system does use, such as the temporary files in the step/diag folder or in the step/admin/cache folders. These temporary files must not be removed.