Comment 2 for bug 425405

This is gnome-settings-daemon which displays this warning. It's currently designed to poll your disk once per minute, and will display a warning when free space gets to less than 5% and 2GB, and then display further warnings each time the space decreases by another 1% if at least 10 minutes passed since the last warning.

Are you saying that this 10 minutes delay should be adjusted?