We are pleased to announce PyPy's 1.2 release. This version 1.2 is a major milestone and it is the first release to ship a Just-in-Time compiler that is known to be faster than CPython (and unladen swallow) on some real-world applications (or the best benchmarks we could get for them). The main theme for the 1.2 release is speed.
The JIT is stable and we don't observe crashes. Nevertheless we would recommend you to treat it as beta software and as a way to try out the JIT to see how it works for you.
- The JIT compiler.
- Various interpreter optimizations that improve performance as well as help save memory. Read our various blog posts about achievements.
- Introducing a new PyPy website at pypy.org made by tav and improved by the PyPy team.
- Introducing speed.pypy.org made by Miquel Torres, a new service that monitors our performance nightly.
- There will be ubuntu packages on PyPy's PPA made by Bartosz Skowron, however various troubles prevented us from having them as of now.
Known JIT problems (or why you should consider this beta software) are:
- The only supported platform is 32bit x86 for now, we're looking for help with other platforms.
- It is still memory-hungry. There is no limit on the amount of RAM that the assembler can consume; it is thus possible (although unlikely) that the assembler ends up using unreasonable amounts of memory.
If you want to try PyPy, go to the download page on our excellent new site and find the binary for your platform. If the binary does not work (e.g. on Linux, because of different versions of external .so dependencies), or if your platform is not supported, you can try building from the source.
The PyPy release team,
Armin Rigo, Maciej Fijalkowski and Amaury Forgeot d'Arc
Antonio Cuni, Carl Friedrich Bolz, Holger Krekel, Samuele Pedroni and many others.