01:37:48 <Dixie_F>  SmartOS joyent_20260430T145637Z on Intel 7 Series/C210 xHC reports super-speed on xhci, but throughput is only ~108MB/s raw.   Is this expected for illumos scsa2usb/xhci/BOT/UASP behavior, or are there tunables/known-good controllers/bridges that might improve this (3x as fast on old macbook)