[GiNaC-devel] AsyForGiNaC - an output extension producing Asymptote files
Jens Vollinga
vollinga at physik.uni-wuppertal.de
Mon Aug 21 14:38:17 CEST 2006
Dear Alexei,
Sheplyakov Alexei schrieb:
> On Sat, Aug 19, 2006 at 02:31:30PM +0200, Chris Dams wrote:
>> The point is of course that every object of a class does only store a
>> *pointer* to a table of virtual methods and not the table itself.
>
> I agree with you, in theory it should be so. But in practice getting
> rid of [unnecessary] virtual methods *does* help to reduce memory usage.
> E.g. removing all printing methods (which I use for debugging only,
> since there is no point in staring throw several-hundreds-megabytes
> expression, compiling it as a C/C++/whatever code is hopeless too)
> reduces memory usage by ~10% (and this was extremely important for us
> due to 3Gb user-space VM limit).
just out of curiosity: do you have an explanation for that phenomenon? I
ask, because your observation - which I don't deny - contradicts my
common C++ knowledge.
Regards,
Jens
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