> if you're writing high-speed/high-frequency trading apps for Wall Street, Java still isn't there.
Stop-the-world GC doesn't stop you from using Java for high-speed apps, unpredictable stalls do. It doesn't matter if your GC takes 2 seconds to run fully as long as it doesn't kick off during your hot loop, and the opposite is true; there will never be a low enough overhead "magic" GC that can be run in the background that may cause a microsecond stutter on your finely tuned trading algotirhm, it has to be explicit.
Stop-the-world GC doesn't stop you from using Java for high-speed apps, unpredictable stalls do. It doesn't matter if your GC takes 2 seconds to run fully as long as it doesn't kick off during your hot loop, and the opposite is true; there will never be a low enough overhead "magic" GC that can be run in the background that may cause a microsecond stutter on your finely tuned trading algotirhm, it has to be explicit.