"It appears that this has to do with having a very large cache of "dirty files" being held, and when that cache gets too full, your system will "pause" whilst it ensures all that data is actually written to disk. Thus to "fix" this issue, you can reduce your cache size so your system doesn't get overwhelmed to the point where it becomes unusable."
Hi. This needs to be fixed. This caused me no end of problems over the years. It makes Ubuntu look bad. I thought it was a problem with my hardware until I found - https:/ /blog.programst er.org/ fix-freezes- when-transferri ng-files ...
"It appears that this has to do with having a very large cache of "dirty files" being held, and when that cache gets too full, your system will "pause" whilst it ensures all that data is actually written to disk. Thus to "fix" this issue, you can reduce your cache size so your system doesn't get overwhelmed to the point where it becomes unusable."
The defaults need changing.