Re: [boost] [serialization] Performance issues serializing lots of objects

From: Johan Lindvall (johan.lindvall_at_[hidden])
Date: 2005-08-19 05:21:41

> The library uses a set (in basic_oarchive.cpp) to keep track of the
> serialized objects. In our project, a very high
> number of relatively small objects are serialized through pointers and
> references to each other, and the number of
> elements in the set could rocket to several millions. This led to memory
> fragmentation and very high performance
> hits after the first serialization (on a Windows XP platform at least).

I'm assuming you are using Visual Studio - In our app we call
_set_sbh_threshold(1016) at the very beginning. This speeds up memory
allocations noticeably. The non-standard function is declared in
malloc.h

-- 
/Johan.