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 references

Ref:

linux, cache, queue

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