Re: [gentoo-user] Kernel Questions

[Frank Steinmetzger <Warp_7@gmx.de>]

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On Tue, Jan 22, 2013 at 08:48:49PM +0100, Florian Philipp wrote:
> Am 22.01.2013 19:43, schrieb Bruce Hill:
> > On Wed, Jan 23, 2013 at 06:53:15PM +0100, Silvio Siefke wrote:
> >> Hello,
> >>
> >> i want ask some questions for the Kernel. 
> >>
> >> How do I find dependencies of each option?
> 
> In menuconfig, when you open the help on an item, there is a line
> "Depends on". If the requirement is not met, the option is not visible
> but can be found by searching (press /).

By happy accident I found out that those can be shown with the Z key.

> There might also be a line "Selects" which contains automatically
> activated dependencies and "Selected by" which contains the reverse
> dependencies.
> 
> >> Are there patches for older computers?
> >>
> 
> Don't think so. If there is a regression, it should get fixed in the
> main line kernel.

In recent news the support for i386 processors was dropped. So your Pentium 4
still has a few years to go. :)

> >> I use the good old Pentium 4 on the desktop and an atom on the laptop.
> >> But I have often the problem when the computer has much to do, that the 
> >> system freeze.

Overheating problem? Considering it's about a Pentium 4, that seems a likely
cause.

> >> That's on the atom often so. The opera is my favorite 
> >> Browser, but often the call on a website and the result end in freeze.
> 
> Odd. Maybe GPU related? Again, does the system recover?

Do both systems freeze on that website? That seems strange.  I, too, have an
Atom Netbook, though with an N450 which has Hyperthreading. It is not fast; it
takes 17 seconds to load Firefox, but I had no freezes yet. The only problem I
have so far is that mplayer often crashes when going to/from fullscreen if its
video output is set to OpenGL. The N270 is an early model, perhaps some other
hardware in the netbook is slowly dying.

> >> What is really strange, when i run emerge --sync ; emerge -avuDN @world,
> >> the Pentium 4 is faster as the Atom. Is that normal?

Well, on the other hand, you can count the Watts an Atom consumes with one
hand. For the P4 you'd need the hands of up to 12 people. That difference has
to come from somewhere.
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