only half of the problem solved -- cyrus deliver slow

[Su Li]

The testing tool is simply do SMTP to send emails. I can specify how many
connections by number of threads. It's runing on another machine. The tool
has been used to test other mail servers, didn't find any problem. The other
mail server can deliver 20 msg/sec. So it doesn't seems like the test tool's
problem.

I don't know how to limit the number of lmtp. If I can limit it by changing
the code, will it help?



Thanks,

Su





-----Original Message-----
From: Rob Siemborski [mailto:rjs3 at andrew.cmu.edu]
Sent: September 17, 2002 3:01 PM
To: Su Li
Cc: info-cyrus at lists.andrew.cmu.edu
Subject: Re: only half of the problem solved -- cyrus deliver slow 


On Tue, 17 Sep 2002, Su Li wrote:

> I wonder, why cyrus behave so differently, when sendmail resend the mails
> and when sendmail normally deliver mails.
>
> I think my job in improving the deliver speed is only half done. Sure I
> limit the number of of lmtpd processes, so that they wouldn't fight for
> lock? If so, how can I limit the number of lmtpd processes?

Are you running your test tool on the same system?  How does it work?
It is possible that your tool is putting a tremendous load on the system.

It is also possible that since a queue run happens with a single lmtp
connection, there is less contention.

-Rob

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Rob Siemborski * Andrew Systems Group * Cyert Hall 207 * 412-268-7456
Research Systems Programmer * /usr/contributed Gatekeeper