How to compile kernel fast

How to compile kernel fast

[Hai Huang]

I've noticed that 2.4 kernel compile is much time consuming than 2.2.
Even very small changes would cause a chain reaction to force other source
files to be recompiled.  Did anyone ever experienced using pvm or
something similar to hasten this process with multiple machines running
parallel?  Well, this might not be the right ng to post this, but I figure
VM's dependency is pretty widespread in the kernel, so this is especially
problemsome in this area.  Any good suggestion is welcome.  Thanks.

-
Hai

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Re: How to compile kernel fast

[Randy.Dunlap]

On Mon, 5 Aug 2002, Hai Huang wrote:

| I've noticed that 2.4 kernel compile is much time consuming than 2.2.
| Even very small changes would cause a chain reaction to force other source
| files to be recompiled.  Did anyone ever experienced using pvm or
| something similar to hasten this process with multiple machines running
| parallel?  Well, this might not be the right ng to post this, but I figure
| VM's dependency is pretty widespread in the kernel, so this is especially
| problemsome in this area.  Any good suggestion is welcome.  Thanks.

There have been some build dependency cleanups in 2.5 that
reduce the number of rebuilt files.
Also, if you are compiling multiple times, you could consider
using compiler-cache (ccache):  http://ccache.samba.org

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~Randy

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