Re: [gentoo-user] Minimal Gentoo install

[Prabhat Gupta]

Hi Rob,

Thanks.

So after bootstrapping can I emerge distcc and compile the kernel , X 
and kde-base with distcc?

Is it going to make a lot of difference in compile time?  Jason 
indicated that It will not make  a lot difference.

Bootstrapping is still going far last 12 hours. It is a  P166, 80M. 1.6G 
for for gentoo (excluding swap).

Regards
Prabhat
Rob Snow wrote:

DISTCC: http://distcc.samba.org 

It's quite simple to use and I would recommend building all your 
portage that way, it takes all of 1min to setup and the payoff is large. 
(about 75-85% performance increase for each host added) 

Basically for portage you just emerge distcc and add distcc in your 
FEATURES line.  The downside is that not all of portage does not 
support make -j(n) so some packages will not take advantage of it. 

Another option is to compile on a different box, you can set your 
DISTCC_HOSTS to not include the local machine, which will cause 
most actual compiling to take place somewhere else. 

ie. DISTCC_HOSTS="thisbox fastbox" will split the compiles across 
thisbox and fastbox, however, DISTCC_HOSTS="fastbox" will make 
all the compiles take place on fastbox...handy for that 166 when 
fastbox is a 2.0GHz. 

Additionally, you can use DISTCC with the Cygwin cross-compiler to 
use a XP (or set of XP) box as a compile host.  This is what I do, do a 
minimal install of Cygwin (~5min?) and then follow the excellent 
HOWTO at: 

http://forums.gentoo.org/viewtopic.php?t=66930 

or grab my cross-linux-3.2.3.tar.bz2 at:  

ftp://ftp.dympna.com/cross-linux-3.2.3.tar.bz2 (23.3MB) 

and untar into /usr/local and do /usr/local/bin/distccd.sh (~5min?) and 
add that xp box into your DISTCC_HOSTS line: 
DISTCC_HOSTS="thisbox fastbox xpbox"  I've even included a script 
to make DISTCC run as an NT service (/usr/local/bin/mkservice) so it 
has no visible effect on XP/NT...just runs in the background.  
Downside is that it's a 23.3MB download, but you only need it once 
per toolchain change. (currently it's at gcc-3.2.3 / glibc-2.3.2 / 
binuntils-2.14.(forgot) / distcc-2.8) which is the current stable build 
environment. 

-Rob 

On Sat, 26 Jul 2003 01:11:29 +0900, Jason Stubbs wrote 
 

On Saturday 26 July 2003 01:00, Prabhat Gupta wrote: 
   

Ciaran McCreesh wrote: 
     

Prabhat Gupta wrote: 
       

I am looking for ideas to reduce the space requirment and also 
compile time. I have only 24 hrs left for this :( 
         

Consider using distcc to speed up compile time. I've never used 
       

it 
 

myself, but I've heard good things about it. Better yet, do the 
compiling on an insanely overspecced server and cp the 
       

filesystem onto 
 

your laptop afterwards :) 

Condiser NFS/iSCSI/whatever for /var/tmp/portage and 
       

/usr/portage . 
 

You should only need those when installing things, so it might 
       

be okay 
 

to put them on a different box... 

Don't emerge kde. Emerge kde-base and whatever else you 
       

need. 
 

HTH, 
       

Thanks, 

Any ideas, how to use distcc? I am currently doing bootstrapping. 

Also I do have a fast machine with gentoo installed but I don't 
     

know how 
 

to setup NFS and use it for installation? 

Any pointers? 
     

As I said before I haven't used distcc before, but I suggest not  
using in conjuction with your "slow" laptops. You will end up having  
the fast machine wait for the laptops to finish compiling something  
it could have done quicker by itself. If you can use the fast  
machine to do the compiling, do like I said before but use the -B  
flag to emerge rather than adding "buildpkg" to FEATURES; that will  
build the packages without installing them. NFS I believe to be  
fairly easy to set up. Do a man mount and if that doesn't help just  
search for "nfs howto" with google and you should be right. 

Jason 

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