New submission from Christian Heimes <[EMAIL PROTECTED]>: The new io library needs some serious profiling and optimization work. I've already fixed a severe slowdown in _fileio.FileIO's read buffer allocation algorithm (#4533).
More profiling tests have shown a speed problem in write() files opened in text mode. For example three str.count() calls are taking up 20% of the time. The str.count calls can be replaced with an optimized C function that returns the count of (\r\n, \n, \r) in one pass instead of three passes. ---------- components: Extension Modules, Library (Lib) messages: 77116 nosy: christian.heimes priority: high severity: normal stage: test needed status: open title: Optimize new io library type: performance versions: Python 3.0, Python 3.1 _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue4561> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
