Don't let I/O-heavy background processes slow down your computer - HowFlow

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Don't let I/O-heavy background processes slow down your computer

Category: Linux | Tags: linux ionice nice cron

HowFlow — We all know it: there are daily or weekly cron jobs to index the man pages or the whole filesystem and Gentoo users do an 'emerge --sync' almost daily, but those I/O-heavy tasks are slowing down the Linux computer, especially with the current I/O schedulers.

Posted by

aroedl 5 months ago

Comments

written by frostschutz 5 months

Does this still work only if you're using the CFQ scheduler as well?

written by aroedl 5 months

Sure. It works with every of the three I/O schedulers (Anticipatory, Deadline and CFQ) we have on Linux.

written by codejunky 5 months

Sau nice! :-)

written by Chris7mas 5 months

I just want to ask (although I'm not very sure it's the right place, but anyway): do you know if there is a way of doing something like this to automatically renice copy processes? I'm using KDE, and copying large files from one partition to another makes the system very slow (the same goes for the 'find' command). A script or something similar?

written by aroedl 5 months

You could set up an alias, but it wouldn't help anyways, because the KDE applications are using the glibc to copy files. They are not just a front end for 'cp'. You could try to start your KDE application like this: ionice -c3 konqueror.

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