A few MB of RAM consumption is normal, and it stops increasing after a
while. This is mainly due to RAM fragmentation and is normal.
Pascal
2009/12/3 Joost 't Hart <joost.t.h...@planet.nl>
> Joost 't Hart wrote:
> > Hi!
> >
> > I have been looking more specifically at what the (UCI) engine does to
> > memory consumption.
> >
> > I start Scid. It does some preloading of stuff, I hit OK at the startup
> > window and let the clipbase and new empty game come up.
> >
> > At the end of the scid_InitTclTk() in tkscid.ccp, Scid has eaten
> > 23706940 bytes from the heap.
> >
> > Now I start the engine, let it spend its efforts on the start position
> > in the game, in single variation mode.
> >
> > Each time the engine presents a new line, Game::Decode() is called
> > several times allocating some more memory, and giving me the opportunity
> > to drop some heap statistics in the console.
> >
> > By the time Game::Decode is called for the first time, Scid eats
> > 26077955 bytes. So after the init function some extra 3 MB has been
> > consumed. Never mind, the very end of initialization must be somewhere
> else.
> >
> > Impossible for me to understand is that Scid eats more and more memory
> > with each line (I think even with each move in each line) the engine
> > presents: By the time the engine suggests 1.e4 c5 at depth 15 (after
> > some 5.4 seconds), memory consumption has gone up to 28807555 (!).
> >
> > What useful things could Scid possibly do with those costly 2MB?
> >
>
> Needless to add that this continues all the time. When I stop the engine
> and restart it, by the time it arrives at depth 15 again, memory
> consumption has gone up to 31081875.
>
> ...
>
> > Cheers,
> > Joost.
> >
> >
>
>
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