--- On Tue, 1/11/11, Stuart Rowan <strr-exim-users@???> wrote:
>
> CauBa wrote, on 11/01/11 01:51:
> > Dear exim users/developers,
> >
> > I upgraded exim from 4.69 to 4.73 a few weeks ago due
> to the vulnerability described in "http://www.exim.org/lurker/message/20101210.164935.385e04d0.en.html"
> >
> >
> > Since then, I notice that my system struggles to keep
> up with the volume of email that it had little problem
> handling in 4.69
> >
> > Has anyone else seen a similar behaviour ?
> >
> > The pertinent config settings are:
> >
> > received_headers_max = 40
> > message_size_limit = 20M
> > recipients_max = 1000
> > queue_only = yes
> > queue_run_max = 250
> > remote_max_parallel = 50
> >
> > connection_max_messages = 750
> >
> > system info:
> > Linux 2.6.18-194.26.1.el5 #1 SMP
> > dual quad E5540 @ 2.53GHz (16 logical
> cores)
> > 16GB RAM
> >
> >
> >
> > typical daily stats for 4.73:
> > Grand total summary
> > -------------------
> >
>
>
>
> At least one address
> > TOTAL
> Volume Messages
> Addresses Hosts
> Delayed Failed
> > Received
> 87GB
> 905747
> 99 6693
> 0.7% 0 0.0%
> > Delivered
> 110GB 1535583
> 1539352 14
> > Rejects
>
> 430
> 12
> > Temp Rejects
>
> 3284
> 27
> >
> >
> > Time spent on the queue: all messages
> > -------------------------------------
> >
> > Under 1m
> 23750 3.1% 3.1%
> > 5m
> 47952 6.2% 9.3%
> > 15m
> 43763 5.7% 15.0%
> > 30m
> 44933 5.8% 20.8%
> > 1h
> 86275 11.2% 32.0%
> >
> 3h 240461
> 31.2% 63.3% *****only 63% after
> 3h****
> >
> 6h 181135
> 23.5% 86.8%
> > 12h
> 89728 11.7% 98.5%
> > 1d
> 6163 0.8% 99.3%
> > Over 1d
> 5551 0.7% 100.0%
> >
> > Time spent on the queue: messages with at least one
> remote delivery
> >
> -------------------------------------------------------------------
> >
> > Under 1m
> 23750 3.1% 3.1%
> > 5m
> 47952 6.2% 9.3%
> > 15m
> 43763 5.7% 15.0%
> > 30m
> 44933 5.8% 20.8%
> > 1h
> 86275 11.2% 32.0%
> >
> 3h 240461
> 31.2% 63.3%
> >
> 6h 181133
> 23.5% 86.8%
> > 12h
> 89728 11.7% 98.5%
> > 1d
> 6161 0.8% 99.3%
> > Over 1d
> 5551 0.7% 100.0%
> >
> >
> >
> >
> > typical daily stats for exim-4.69-4
> >
> > Grand total summary
> > -------------------
> >
>
>
>
> At least one address
> > TOTAL
> Volume Messages
> Addresses Hosts
> Delayed Failed
> > Received
> 80GB
> 789440
> 98 53523
> 6.8% 0 0.0%
> > Delivered
> 159GB 1572696
> 1582306 11
> > Rejects
>
> 950
> 3
> > Temp Rejects
> 10250
> 16
> >
> >
> > Time spent on the queue: all messages
> > -------------------------------------
> >
> >
> Under 1m 237858
> 30.2% 30.2%
> >
> 5m 149936
> 19.0% 49.2%
> >
> 15m 148053
> 18.8% 68.0%
> >
> 30m 112415
> 14.3% 82.3%
> > 1h
> 95188 12.1% 94.3%
> > 3h
> 44596 5.7%
> 100.0% *****100% after 3h****
> > 6h
> 2 0.0% 100.0%
> >
> > Time spent on the queue: messages with at least one
> remote delivery
> >
> -------------------------------------------------------------------
> >
> >
> Under 1m 237858
> 30.2% 30.2%
> >
> 5m 149936
> 19.0% 49.2%
> >
> 15m 148053
> 18.8% 68.0%
> >
> 30m 112415
> 14.3% 82.3%
> > 1h
> 95188 12.1% 94.3%
> > 3h
> 44596 5.7% 100.0%
> > 6h
> 2 0.0% 100.0%
> >
> >
> >
> > Thank you in advance for anyone who takes the time to
> look at this.
> >
> > Cau Ba
> >
> >
> >
> >
>
> From: Stuart Rowan <strr-exim-users@???>
> Subject: Re: [exim] exim 4.7 slowness
> To: exim-users@???
> Received: Tuesday, January 11, 2011, 11:53 AM
> DKIM signatures get verified by
> default in 4.7x (though pass/fail of
> verification is merely logged rather than anything
> unexpected) and I don't
> think this was true in 4.69?
>
> Cheers,
> Stu.
Good point Stuart,
the src/EDITME file indicates:
#------------------------------------------------------------------------------
# By default Exim includes code to support DKIM (DomainKeys Identified
# Mail, RFC4871) signing and verification. Verification of signatures is
# turned on by default. See the spec for information on conditionally
# disabling it. To disable the inclusion of the entire feature, set
# DISABLE_DKIM to "yes"
# DISABLE_DKIM=yes
Might it also be this ?
Since 4.70,
NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
When building exim an external PCRE library is now needed -
PCRE is a system library on the majority of modern systems.
See entry on PCRE_LIBS in EDITME file.
non-embedded PCRE is used for versions 4.70 and greater. I wonder if that also has a performance impact.
Interesting.
C.
