I've looked at many different tutorials and Q&A websites, but I can't get it to work.
Right now Minecraft will only start if I have the
-Xms1G JVM argument; if I try to increase it, I get the error:
Error occurred during initialization of VM Could not reserve enough space for 2097152KB object heap.
It sounds like either I don't have enough RAM available, or there's a program keeping Minecraft from taking up that much RAM. However, I have 8GB of RAM, so I have way more than enough.
Does anyone have any ideas on what's keeping me from increasing the amount?