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Old 01-14-2004, 07:37 PM   #1
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What are the Advantages of a "Tight" Kernel?

Exactly like the title reads.... what are the advantages to having a kernel really specific to your hardware? I mean, beyond kernel size, I don't understand what the advantages are. In fact, the only thing I can see is that it makes it so that if you plug in more hardware, you're going to have to do a recompile to support it. I assume there are plenty of advantages to "optimizing" your kernel for your hardware, but what are they?
Old 01-14-2004, 07:41 PM   #2
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loads faster and stuff, but thats about it, i prefer comstumized kernels cuse that way after you optimize them you can add stuff u might need or whatever (like i have almost every fs that linux kernel 2.4.20 suports loaded as a module (only reiserfs suport is built in csue thats the fs i use on md hd) - o and also you can add paches to improv proformance (low latency, or premtion(this got put into the kernel somtime in 2.5 so dont ask if u can find this patch for 2.6), also you can add patches for grafical boots, or use the vesa framebuffer that is alrdy in the kernel (requires that you sat yes to include expeimential drivers and stuff under code maturition option in menuconfig)

Last edited by SciYro; 01-14-2004 at 07:45 PM.
Old 01-14-2004, 09:31 PM   #3
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One "real" advantage is that you can load a custom kernel into a device that doesn't have a lot of memory. With a server, you may not want potential backdoors opened, and this is a way to lessen that risk. Also, having a server tweaked to provide it's best performance is an obvious advantage if you serve a large number of clients or sites.

For most people, a custom kernel is a neat thing to play with, but not that important.
Old 01-15-2004, 09:17 AM   #4
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Alright, thanks for the tips. I had a hunch that there really wasn't a lot of difference there, but I wanted to check it out anyway.


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