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Re: compile time regressions (was: merging for 3.4)
- From: Neil Booth <neil at daikokuya dot co dot uk>
- To: Dan Nicolaescu <dann at ics dot uci dot edu>
- Cc: "libstdc++ at gcc dot gnu dot org" <libstdc++ at gcc dot gnu dot org>, gcc at gcc dot gnu dot org
- Date: Tue, 10 Dec 2002 06:37:55 +0000
- Subject: Re: compile time regressions (was: merging for 3.4)
- References: <F65E3CFB-07D4-11D7-A567-00039390D9E0@apple.com> <Pine.BSF.4.50.0212052132140.63645-100000@naos.dbai.tuwien.ac.at> <200212100246.gBA2kujF029585@gremlin.ics.uci.edu>
Dan Nicolaescu wrote:-
> It looks like there was a significant increase in the garbage
> collection time. It's strange that GC is so expensive for C++
> compilation.
I think GC is turning out to be a mistake, even though it saves
us from nasty memory issues. It means we have no idea what code
is gradually getting worse; it just shows up as "GC". And it
gives poor locality.
Neil.