What are the kernel differences?

[oshunluvr]

Noticing now there are server kernel versions available. Just wondering what the real differences are.

Phoronix did a speedtest recently but IMO those things are usually not reflective of the real world use and vary greatly based on hardware.

So my questions are:

1. generic, preempt, server, rt, ec2 : what are the differences?

I'm not looking for a eight page dissertation, just the high points, thanks!

2. Is there any problem installing ALL of them on my daily user and trying them out?

[Snowhog]

Re: What are the kernel differences?

One of the things that server and rt (real-time) kernels provide, is the ability to support/utilize RAM above 4GB.

[Rog131]

Re: What are the kernel differences?

...what are the differences?

They have been optimized for different tasks

Ubuntu Kernel docs > Kernel


From the development phase:

Karmic > Why does the Ubuntu don't use a 1000Hz kernel?
Lucid > Lucid will include optional low latency kernel
Maverick > Linux kernel 2.6.34-1.6 uploaded

2. Is there any problem installing ALL of them on my daily user and trying them out?

I have not noticed ill effects - If something is not working. I don't use it and uninstall it. Kernel installation doesn't change the system.

[oshunluvr]

Re: What are the kernel differences?

I saw some notes about nvidia driver issues with the preempt kernel so I may be in for more work than I want.

However, since I did just order my second pair of 2gb sicks, boosting me to 8gb - I guess I'd better get to it!