Install, Cold, and Warm runs

J2ME.js has at least three different kinds of runs

• Install run only happens once, and is expected to be slow, since it spends time optimizing and precompiling the very first run in order to make subsequent runs faster
• Cold runs require starting up both foreground and background midlets, if needed
• Warm runs only require starting up a foreground midlet; the interpreter should already be warm, thanks to being awoken once a minute for background code to run