Antoine Pitrou added the comment: > If only one system call is being made, then I think that > fl.read(256) and fl.read(70934549) should take same amount of time to > complete - assuming disk I/O is the time consuming factor in this > operation (as compared to memory processing).
What do you mean? Reading a large number of bytes will most certainly always be slower than reading a small number of bytes, even if it only takes one system call. You still have to copy the data from disk or filesystem buffers into userspace. A reasonable expectation is for read(N) to be O(N), but not O(1). You might want to check that by timing it with different N values. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue17440> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
