[Python-Dev] very bad network performance
schmir at gmail.com
Mon Apr 14 18:12:35 CEST 2008
I'm using mercurial with the release25-maint branch. I noticed that checking
out a local repository now takes more than
5 minutes (it should be around 30s).
I've tracked it down to this change:
this is svn revision 61009. Here is the diff inline:
--- a/Lib/socket.py Fri Mar 23 14:27:29 2007 +0100
+++ b/Lib/socket.py Sat Feb 23 20:30:59 2008 +0100
@@ -305,7 +305,7 @@
self._rbuf = ""
left = size - buf_len
- recv_size = max(self._rbufsize, left)
+ recv_size = min(self._rbufsize, left)
data = self._sock.recv(recv_size)
if not data:
self._rbufsize if 1, and so the code reads one byte at a time. this is
clearly wrong, I'm posting it to the mailing list, as I don't want
this issue to get lost in the bugtracker.
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