New submission from Serhiy Storchaka: When C implementation of the unpickle reads a data, it also prefetches some data using peek() (if available) and then concatenates read and peeked chunks in the one input buffer. This causes an additional copying when a large data is read. The proposed patch gets rid of concatenating by moving a peeking before reading.
---------- components: Extension Modules files: pickle_peek.patch keywords: patch messages: 188317 nosy: alexandre.vassalotti, pitrou, serhiy.storchaka priority: normal severity: normal stage: patch review status: open title: Optimize unpickle prefetching type: performance versions: Python 3.4 Added file: http://bugs.python.org/file30114/pickle_peek.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue17897> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
