Minecraft and Terraria both run incredibly slow on my machine. I've never seen anything like it, javaw.exe hammers my cpu - it's constantly at 100%. These aren't even graphically intensive games, they both use java, so I suspect that to be the reason.
I tried setting low render distance, 3D anaglyph to off, graphics to fast, but still minecraft became unplayable.
I uninstalled all previous versions of java and installed the latest version: jre7. I even tried running minecraft in very low resolution and it still killed by cpu. Reinstalling minecraft and java hasn't worked.
I've checked that nothing else is running, anti-virus autoscan is off.
I've managed to run hl2, portal, cod4, san andreas and other recent 3D games just fine, so it's very frustrating.
My specs: Pentium 4 2.8GHz 1 GB RAM NVIDIA 5600 64MB Windows XP