My system has been extremely laggy when doing anything via the terminal, or file browser even just SSH in via my LAN and cd’ing around is slow. Running most programs like a web browser though seem to be fine. Loading up all the cores is fine. I haven’t added or removed packages, nor installed any updates.
The only thing I did today was transfer files to and from an external ssd. I just moved the ssd to a new usb-enclosure, the old one fell apart. The new usb enclosure seemed to be functioning fine. However while transferring ~200GB to the external ssd, the transfer slowed to <1MB/s and the system basically froze for 30 seconds. Tried to delete the partially transferred files, system froze for 30 seconds. Tried to cancel the delete operation. Froze. Left it alone for an hour, some nautilus process was still going. Super laggy. Couldn’t stop the drive, couldnt unmount, nothing worked. I had to eventually just yank the ssd out of the usb port. I since transferred the files completely, and it went reasonably fast. However, file browser and terminal haven’t performed smoothly since. Perhaps just a coincidence?
Tried rebooting. Tried apt-get update. Not sure why the terminal would be laggy. Slow cursor, typing is horrible.
Could I have somehow made Nautilus angry? Not sure how that would affect the terminal though
edit: Some specifics,
Running ubuntu 18.04.4, ryzen 9, latest bios, everything has been stable for weeks.
I was transferring data from a nvme data drive (not my OS drive) to a sata-usb ssd enclosure formatted in exFAT