[Mailman-Developers] amazingly slow ArchRunner performance

[Andrew D. Clark]

Hello all,

I'm using mailman 2.1b3, on FreeBSD 4.6 (PIII 700mhz with 1GB RAM and fast 
disks) with Exim 4 and a local caching named server.  Qrunner performance 
seems vastly improved over mailman 2.0.x, but archiving is amazingly slow 
(ArchRunner pushes about 1 msg. every 1 to 2 minutes).  I've posted on the 
mailman-users list, to no avail.  I've got about twenty lists, but the 
problem one is a particularly bursty high volume list with only three 
members.  There's currently 2072 files in qfiles/archive (so about 1036 
messages), the oldest of which is a little over 24 hours old.  Restarting 
the queue runners didn't help, and there aren't any stale locks sitting 
around.  The mbox file for this list is 540MB in size.  I've grubbed 
through the code a bit (but I'm a Perl hacker, not a Python guru).  Help?
I'm not sure if there's a memory leak in the ArchRunner, or what exactly 
it's trying to slurp up, but it sure does eat RAM:

PID USERNAME PRI NICE  SIZE    RES STATE    TIME   WCPU    CPU COMMAND
42813 mailman   60   0    99M    98M RUN    921:25 96.09% 96.09% python

--
Andrew Clark
Campus Network Programmer
Office of Information Technology
University of California, Santa Barbara
andrew.clark@ucsb.edu (805) 893-5311