Aaron,=20 I couldn't tell from your post if you're measuring memory in Producer or in runtime. In Producer memory usage is going to be considerably higher. =20 David Yackley (MS) This posting is provided "AS IS" with no warranties, and confers no rights. -----Original Message----- From: Scott Morgan [mailto:scott@xxxxxxxxxxxxxxxxx]=20 Sent: Sunday, September 29, 2002 4:31 PM To: directmusic@xxxxxxxxxxxxx Subject: [directmusic] Re: Mem usage Make sure the wave is set as a streaming wave. It helps to check 'don't pre-roll' also. The wave data will be uncompressed when it is loaded, but if its streaming it shouldn't be that big of a deal. I notice about 1MB usage for one streaming wave. An 11MB container shouldn't use 22 MB unless you have a a bunch of buffers in your audiopath and are using DMOs (especially mutiple reverbs and sends). Hope that helps, -Scott Morgan http://Morganstudios.com ----- Original Message ----- From: "Aaron R Leiby" <aleiby@xxxxxxxxxxxxx> To: <directmusic@xxxxxxxxxxxxx> Sent: Sunday, September 29, 2002 5:58 PM Subject: [directmusic] Mem usage > > Using my most scientific method of the TaskManager to track memory usage, > I'm noticing that with just a simple direct music script calling an empty > segment (tracks - tempo/timesig/wave/script), I'm getting about 2MB boost in > memory use (the container file itself is 1.46kb). When I have a container > (similar structure) just with more segments, and actual wav data > (compressed), whose container weighs in at 3.08MBs, I'm seeing a 9MB boost > in memory use when I start the script (which includes initializing DM, > etc.). Our largest container weighs in at a hefty 11.5MBs, and results in > over 22MBs increase memory use. (Memory usage appears to fluctuate +/- 2MBs > over the course of playing.) > > A) Does this sound right? > > B) What are some methods for reducing this? > > Some data points: > > o We're using VBScript for the scripts (since they use select statements, > rand, global vars, etc.). > o Wav files are compressed using only Microsoft ADPCM. We are shipping with > simple streaming ogg vorbis music for much of the game, so it may be worth > me spending time to hook up similar compression for DM use? > o Wav files are set Streaming with 500ms read ahead. > o Script is flagged with "Load all content when script is loaded" -- > disabling this causes errors (apparently there is no automatic load on > demand support and something the application writer is expected to > provide?). > o Script is flagged with "Download all segments when script is loaded". > > Ideally, I'd like to only incur a fixed overhead for initializing > DirectMusic, a small overhead for loading all the segment info, script, etc. > (structure stuff), and then whatever is required for the streaming wav pool > (which I would expect to be the largest overhead, but certainly not an order > of magnitude larger than the source material). > > > Thanks, > > Aaron. > > >