Benchmark stdlib compression code

At PyConUS, I was chatting with @gpshead about adding compression benchmarks. While a lot of the "heavy lifting" of compression happens in the libraries CPython binds (zlib, liblzma, etc.), the handling of output buffers in CPython has a significant impact in performance, and is something we don't have a lot of visibility into the performance of.

One of the better known cross-algorithm compression benchmarks I'm aware of is lzbench, which tests compression performance of the Silesia compression corpus across many algorithms. I figure running compression benchmarks at varied settings on Silesia would provide a good starting point for benchmarking the output buffer and other binding code.

Aucun fichier, test ou point d’entrée n’est indiqué. Commencez par examiner la structure de benchmarks existante de pyperformance, puis comparez la méthodologie Silesia de lzbench et les bindings de zlib/liblzma afin de définir des paramètres variés et des mesures du tampon de sortie. La tâche est terminée lorsque des benchmarks de compression reproductibles exposent les performances côté CPython décrites dans l’issue.