New submission from STINNER Victor: Attached patch is the first step to optimize Unicode encoders: it adds a _PyBytesWriter API. This API is responsible to use the most efficient buffer depending on the need:
* it's possible to use a small buffer directly allocated on the C stack * otherwise a Python bytes object is allocated * it's possible to overallocate the bytes objcet to reduce the number of calls to _PyBytes_Resize() The patch only adds the new API, don't expect any speed up. I just added a small optimization: the overallocation is disabled in UCS1 encoder (ASCII and Latin1) for the last write. ---------- components: Unicode messages: 252322 nosy: ezio.melotti, haypo, serhiy.storchaka priority: normal severity: normal status: open title: Add _PyBytesWriter API to optimize Unicode encoders type: performance versions: Python 3.6 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25318> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
