This is an old revision of the document!

Copying large files to USB Device blocks system

When copying large amounts of data, e.g. digital images to an usb drive, I noticed laggy system behaviour, to the point that the mouse would not move.

The problem seems to be cache queue blot, which I could reduce by adding these settings to my local sysctl config file (/etc/sysctl.d/my-sysctl.conf>:

vm.swappiness=10
vm.dirty_background_ratio = 5
vm.dirty_ratio = 10

I had to reboot the system because sudo sysctl -p did not reload the values. For more details on this see the

Ref:

Discussion

Real name:

E-Mail:

Enter your comment. Wiki syntax is allowed:

Please fill all the letters into the box to prove you're human.

   __ __   ___    ___    ____   ____
  / // /  / _ \  / _ \  / __/  / __/
 / _  /  / ___/ / , _/ / _/   _\ \  
/_//_/  /_/    /_/|_| /_/    /___/

Please keep this field empty:

Subscribe to comments