Re: [Gnewsense-dev] ccache support patch for the Builder

[Dmitry Samoyloff]

At Sat, 19 Jun 2010 16:33:31 +0930,
Karl Goetz wrote:
> 
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> On Tue, 15 Jun 2010 22:15:06 +0200
> Michał Masłowski <address@hidden> wrote:
> 
> > >Intersting idea. I have little experience with ccache. It's only
> > >useful 
> > > from the second time on a package is compiled, right? Builder
> > > normally compiles a package only once. I'm curious to know what the
> > > ccache penalty is. If it makes Builder run a lot longer I'd rather
> > > not include it by default.
> > > 
> > > I guess ccache only works when the binaries are not removed between 
> > > compiles. Builder removes $WORKINGDIR every time before building a 
> > > package. Can you explain how ccache can do its thing then?
> > ccache has its own cache of results of compilation of preprocessed C
> > source (depending on compiler version and arguments). It is designed
> > just for situations when $WORKINGDIR is removed before compilations.
> 
> your patch only affects the chroot, so is the cache being stored in the
> chroot? if it is then its inside workingdir and gets removed.
> kk

No, the ccache cache is in /var/lib/ccache in chroot. The WORKINGDIR is
/srv/gnewsense/tmp in chroot.

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> -- 
> Karl Goetz, (Kamping_Kaiser / VK5FOSS)
> Debian contributor / gNewSense Maintainer
> http://www.kgoetz.id.au
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