Robert Grasböck schrieb am 05.05.2015 um 15:52: > I have a question about memory usage of libxml2. > I'm using libxml2 on two different systems, once a 32 bit linux other one a > 64 bit linux. > On both I run the same application which use libxml2 to parse xml files. > The application opens many small xml files (~200) with xmlParseFile. > The document (xmlDocPtr) stays open in memory. > I now noticed that the application running on 64 bit Linux uses more the 4 > times the heap memory as on the 32 bit version. I could understand a double > up of used memory due to all the pointers are now double the size. But 4 > time??? > > I did a check with valgrinds massif tool and it tells me that most of the > heap allocation (in my case 2/3 of the total heap consumption) comes from > libxml2 xmlParseFile. > > I don't know if it's a issue of libxml2 directly, but it seems it is. > I would appreciate any suggestions to get the memory usage down!
Have you enabled the COMPACT parsing option? It avoids text nodes for short text content and benefits a lot from a 64 bit architecture. Stefan _______________________________________________ xml mailing list, project page http://xmlsoft.org/ xml@gnome.org https://mail.gnome.org/mailman/listinfo/xml
