On Sun, 24 Oct 2004 19:44:32 +0200, andrea ferraris
<andrea_ferraris@...> wrote:
> You're a very patient person, or your offline machine is at least
> a 4 3Ghz Xeon with 4 GB RAM, or you never compiled something like
> X and/or OpenOffice  and some other nice little things ;-) .

800mhz with 256Mb ram -- why do I need a 100% up to date system? -- so
X takes about 4 hours to compile, so what? -- what difference does it
make?

> It is that what you're describing is a lucky, but I fear uncommon,
> situation: you can afford a plus machine and you don't have different
> machines and machines types to compile for.

First of all, you can setup distcc, and have a bunch of 200mhz offline
machines get anything compiled reasonably fast. But is 800mhz really a
"plus machine" -- lets be realistic here...

> I think that a common
> situation, with different machines and machine types and production
> machines, require a big overhead either in CPU load, either to schedule,
> monitor and manage the compilations for not suffering for such CPU load
> increase.

Just get 1 offline machine to do that, and stick the packages on a
shared package repository. Whats the problem? -- it only has to be
once for a network.

> I made what you're describing, but also in my case, with the same
> machines and machine types and the CPU load increase was not a concern.
> I think that in most cases, with a smart monitoring, scheduling and
> managing and with ccache and distcc you can get the target also in more
> common situations without performance degradation in the business
> services offered by the machines, but there are concerns either for
> security (gcc installed everywhere to have distcc working) and the work
> for managing monitoring, scheduling and control the CPU load and network
> traffic increase.
Again, I only have gcc on 1 machine, and no matter how slow that
machine is, it gets thing compiled anyway. With ccache, updates take
conciderably less time and 90% of the stuff I compile on it, gets
compiled in less than an hour.

Whatever takes longer than an hour isnt a problem either since its
compiled once and distributed as a binary package to all machines.

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