Where does the memory go? September 28, 2010 cliffski I haven’t been working on memory optimisations in GSB for a few days, in fact I’ve done nothing but work on features and bug fixes and other stuff for the campaign game. The game is getting better, and looks nicer now, but there is tons to do, a whole host of niggling little things, and some vital balancing and optimising still to do. But as I work, I keep thinking back to my attempts to optimise the memory footprint of GSB. I wrote an overriden new and delete, to track all my memory (I never use malloc or free). I have spreadsheets showing all the allocations. However, it seems that the memory I allocate is just a trivial percentage of the RAM the game seems to use if you look at it with windows task manager or the windows performance monitor. Of course, there are about 36 different measurements of memory, such as ‘private bytes’ and ‘peak working set’, And nowhere is there a definitive answer on which one to use. However, even using the lowest one, there is still at least 50% of memory unaccounted for. At one point, I checked my stats were not reporting MB as KB, it was that bad. Sadly, it’s hard to optimise when you can’t see the wastage. I suspect a big chunk of it is particles, but the maths don’t support that. It could be directx making system memory copies of video texture buffers and sound files, but would that be inside the GSB.exe memory footprint? Who knows! In other news 1) The ecofan really works. In fact it is awesome. 2) Chopping wood from 3 year seasoned timber is trivial next to 10 month felled holly, which is like cutting neutronium with a spork. 3) The UK has a major apple glut. We have some apple trees in the garden and so many apples we literallty can’t walk in the garden for the fallen ones. I actually knocked on neighbours doors to hand them carrier bags full of apples today, just to get rid of a few hundred. It’s insane. We are eating as many as we can, and making apple cakes galore.