[Python-Dev] Python 2.3b1 has 20% slower networking?
Jeff Epler
jepler@unpythonic.net
Sun, 27 Apr 2003 21:04:22 -0500
I can also reproduce the slowdown.
Measured on a Redhat 9 machine, python-2.2.2-26.i386.rpm vs python 2.3b1
compiled with default options. 700MHz Pentium III in a laptop. best of 3
runs. Count of 100000. Running over the loopback device. Sentence
fragments.
Server Client Throughput Speed
2.2 2.2 53520.4 100.00%
2.2 2.3b1 43726.28 81.70%
2.3b1 2.2 43032.06 80.40%
2.3b1 2.3b1 38283.78 71.53%
System load was low at the time, though I had various apps running.
I also ran the test over my 802.11b wireless setup:
Server Client Throughput Speed
2.2 2.2 639.16 100.00%
2.3b1 2.2 639.07 99.98%
(client was a 350MHz machine with various programs running)
that is, when running over a relatively slow link (theoretically, 11mbps)
the slowdown is not measurable. However, I don't think that this really
decreases the importance of this performance regression.
Jeff