On 30-aug-2006, at 7:26, Talin wrote: > Guido van Rossum wrote: >> >> Regarding optimal buffer size, I've never seen a program for which 8K >> wasn't optimal. Larger buffers simply don't pay off.
Larger buffers can be useful when doing binary I/O through stdio (at least on linux). I've recently had a program that had significant speedup when I used a 128K buffer. > > Well, as far as readline goes: In order to split the text into lines, > you have to decode the text first anyway, which is a layer 3 > operation. And buffering is a layer 2 operation. Function calls are signficantly cheaper than system calls. You don't want to do a system call for every character read, but might get away with doing a function call per character. Ronald _______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
