My recent posts on JSON parsers performance on Android platform were followed by some nice feedback. But to be honest, the previous version of the code was not exactly optimal. As @cowtowncoder pointed out in comments, there were several problems.

First and most stupid was that I was using very poor implementation of input reading for Android built-in parser. Now after change in the code, this parser is no longer the slowest one. Next problem was that I did not do any warm-up before actual test were executed. Next Tatu suggested to try to run tests in multiple iterations, so I am running them now 1, 5 and 100 times. I’m also using Jackson factory as static singleton, which is recommended.

Now, let’s see actual results as they appear now:

So it’s Jackson, what you should use if you need really fast reading of JSON data. All the code is up on GitHub.