It takes a long time to delete a long directory, the long-running SMB CLOSE requests(WAFL_SPINNP_CLOSE) is the major contributor to the performance drop, and it's caused by the extremely long cpu run ...It takes a long time to delete a long directory, the long-running SMB CLOSE requests(WAFL_SPINNP_CLOSE) is the major contributor to the performance drop, and it's caused by the extremely long cpu run time in WAFL cpu scheduling. High Service Response Time for SMB CLOSE requests in the packet trace Note: The average CPU run time is 1343us, while the Average CPU wait time is 44103us in this example
