Greetings, I'm looking for a method to test streaming write and read speeds to and from the Broadcom (LSI) PCIe SAS controller without the use of any physical block devices connected to the HBA. I want to test the streaming performance of the PCIe side of the controller. Does anyone know of any loopback within mpt3sas or similar function that can be used with dd or fio to profile PCIe side streaming performance? Example: dd if=/dev/zero of=/dev/somemptloopback bs=65536 dd of=/dev/null if=/dev/somemptloopback bs=65536 Many thanks, --Jeff
