On Fri, 2011-09-09 at 14:22 -0500, Norbert Thiebaud wrote: > > Now granted, once we can reliably do incremental build, the question > of the effectiveness of ccache will be much more acute. > presumable incremental build only try to compile stuff that _need_ to > be compiled and therefore should be a ccache miss... so with perfect > incremental build the ccache hit should be 0%
Not quite, I think. Consider a header file changed within in #if-skipped region in a way which does not change the number of skipped lines. I expect this would trigger a recompile and that ccache, other things being equal, would find a hit on the cache. Does this sound plausible. Still, I would expect the hit rate to go really close to 0. Terry. _______________________________________________ LibreOffice mailing list LibreOffice@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libreoffice
