rev 1293

[xoft]

Well aren't I good! I think I've written a really useful tool for visualizing the memory usage. It reads a memdump.xml file produced by the "dumpmem" console command, and outputs a list of functions and total memory they and their children allocated, as well as a DOT file for drawing a graph (using GraphViz) representing the hierarchy of memory allocation.

Have a look here: http://mc-server.xoft.cz/img/memdump.svg (you need a decent browser, it's a huge picture in SVG format, 1 MiB in size; scroll to the center to find the actual image data)
And the list (example extract of a 54 KiB text file):

Code:

894936 tolua_AllToLua_open 1168855 cPluginManager::AddPlugin 1170151 cPluginManager::LoadPlugin 1170583 cPluginManager::ReloadPluginsNow 1175920 cPlugin_NewLua::Initialize 7846804 cRoot::LoadWorlds 9542448 cChunkMap::cChunkLayer::GetChunk 9558944 cWorld::InitializeSpawn 9558944 cChunkMap::TouchChunk 9558944 cRoot::StartWorlds 9558944 cChunkMap::GetChunk

Now I only need the memory allocation data. And I think I'll add some filtering, having CryptoPP and Lua in that graph is pretty useless.

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I'll now write the code to dump memory when memory usage reaches 1 GiB.