Arch Linux

Gigadoc 2

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Registered: 2009-11-14

Posts: 16

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What exactly does the ck-patchset do?

So, i am an owner of a Thinkpad W530 with a Nvidia Quadro graphics card, and just like many others (https://devtalk.nvidia.com/default/topi … ver-crash/) i can only use the proprietary Nvidia driver when using linux-ck instead of the vanilla Arch kernel.

Now, i am really curious why this is the case. AFAIK, the ck-patchset simply gives you BFS and CFQ on top of the regular Arch kernel, and allows you to use some more gcc optimization for your hardware.
But how does any of this affect the Nvidia driver? Or is there something else changed by the patchset?

I could not find any information on this, so i would be very grateful if someone could tell me more about this.

brebs

Member

Registered: 2007-04-03

Posts: 3,742

Re: What exactly does the ck-patchset do?

That's quite amusing, because in the early days, Con was warning that his new-fangled scheduler would *cause* instability - by exposing timing-sensitive bugs in drivers; bugs which may have been conveniently hidden by the stuttering CFS scheduler.

The CPU scheduler affects ALL the software, because it determines what runs when. You're probably assuming that software doesn't contain bugs

I vaguely remember reading that Nvidia have to use weird tricks, to try to ensure a reasonably *even* framerate.