Pyston Now 95% Faster Than CPython, But Dropbox Just Stopped Supporting It
Written by Michael Larabel in Programming on 31 January 2017 at 03:38 PM EST. 41 Comments
Back in 2014 Dropbox announced the Pyston project as an open-source JIT compiler to Python focusing upon maximum performance. With this newest Pyston release (v0.6.1) they are now 95% faster than CPython, but Dropbox is ending their involvement in the project.

Pyston will remain open-source, but this is the last release Dropbox is sponsoring and their involved developers are moving on to other projects.

Dropbox is ending their sponsorship of Pyston due to moving performance-sensitive code to other languages (they mention Go) and they spent a lot more time working on code compatibility and memory usage than anticipated. They are ending their work being 95% faster with standard Python benchmarks, on web-workload benchmarks they are 48% faster. With Dropbox's server they are 10% faster over CPython.

The Dropbox developers who led Pyston are now trying to figure out next steps, including hopefully letting the project live-on in whole or part. They are also hoping CPython will accept some of their code.

More details via this blog post.
Related News
About The Author
Author picture

Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

Popular News This Week