Ubuntu has ionice, but as far as I can tell, it does absolutely nothing.
I suspect this is because Ubuntu replaced cfq with deadline and deadline doesn't support priorities.
Is there any possible way to have prioritized I/O on Ubuntu anymore?
EDIT: The context is that I have a database restore that easily consumes all my I/O and renders my system unusable until it has finished. I'd like it to remain usable for other tasks.
Compression for a 500MB deb takes a long time. I still need the compression. Is there anyway to multithread it?
There's pxz, pigz, pbzip2. Is there any way I can get dpkg-deb to use one of these. Or maybe replace the existing non-parallel libraries on my system with these implementations?
I've searched for a while, but it seems that depk-deb only allows a very limited amount of customization for compression options.
I'm using Ubuntu 14.04.
I need GNU Make 4.0+ because of the new file function.
How can I install this on Ubuntu 12.04?
I tried the .deb, but it depends on libc6 2.17.