After a recent reinstall of my laptop (got a new HDD and wanted to start fresh), this affects my laptop, too. After applying the lower up_threshold, especially scrolling in the web browser feels much snappier.
To keep it permanent, I just added the line to my /etc/rc.local.
As a refinement, one could even move it to acpi, and set different values whether on battery or AC.
After a recent reinstall of my laptop (got a new HDD and wanted to start fresh), this affects my laptop, too. After applying the lower up_threshold, especially scrolling in the web browser feels much snappier.
To keep it permanent, I just added the line to my /etc/rc.local.
As a refinement, one could even move it to acpi, and set different values whether on battery or AC.