Re: Delayed email because of signing

On 12/6/10 8:14 PM, SM wrote:
> Hi Jason,
> At 10:35 06-12-10, Jason Clint wrote:
>> Sorry SM the maillog shows everything going out smoothly, its just
>> kind of slow. If I do a "tail -f /var/log/maillog | grep "Milter
>> insert" i can see it as it adds the dkim into the message and they
>> are about 5 seconds apart.
>
> What I would like to see is the client to MSA entries. The "Milter
> insert" is done near the end of the SMTP traction. DKIM signing a
> message should not take more than a second. In practice, it is much
> less than that.

+1. Half a year ago I did some performance testing on really old
hardware running Postfix:

Postfix version 2.6.5
Hardware: Compaq
Pentium(R) III processor 866 MHz
512 Mbyte memory

I got a message signing rate of 8.33333/second (100 kbyte messages).

Another system, running Sun Java System Messaging Server (these days
called Oracle Messaging Exchange Server) signed in the order of 50
messages per second.

> Without actual information from the mail log, it is difficult to say
> what is going on.
>
> The message I sent to you took 39 seconds from client submission to
> the MSA and from there to the MTA where it was relayed it to
> gmail-smtp-in.l.google.com. The actual DKIM signing took less than
> one second. An incorrect reading of the mail log might have us
> conclude that there was some DKIM signing or another problem.

+1

/rolf
Received on Mon Dec 06 2010 - 21:17:50 PST