I can also confirm this. Disabling swap with swapoff -a solves the problem.
I have 8gb of ram and 8gb of swap with a fake raid mirror.
Before this I couldn't do backups without the whole system grinding to a halt. Right now I am doing a backup from the drives, watching a movie from the same drives and more. No more iowait times and programs freezing as they are starved from being able to access the drives.
I can also confirm this. Disabling swap with swapoff -a solves the problem.
I have 8gb of ram and 8gb of swap with a fake raid mirror.
Before this I couldn't do backups without the whole system grinding to a halt. Right now I am doing a backup from the drives, watching a movie from the same drives and more. No more iowait times and programs freezing as they are starved from being able to access the drives.