Thank you all for your extensive support. I have to say that this thread told
me that SA's list is one of the most lists out there.
Why didn't I reply back? I initially wanted to reply to thank you for the great
friendly free help (at least). However, then I thought that sending a "thank
you" mail is not productive, and it might waste the time of all the
participants of the list --- that's all! So I changed my mind, changed
subject/content and sent my other question for sake of optimizing time usage
(specially that my 1st problem is only partially solved by now).
Regarding my problem, I am still investigating the cause of the network delay.
I have installed a DNS cache server, and speed did increase for "cached"
entries. Sometimes, I get ~1.4 seconds (time(1)) for email scanning with
network enabled, and 0.1 seconds when network tests are disabled. I tried other
DNS servers beside my ISP's, and they all were similarly slow for non-cached
entries. I am suspecting that my SP is doing something weird, it could be that
they are doing some form of transparent DNS proxying to filter unwanted
websites.
-- H
> Date: Sun, 13 Mar 2011 01:25:13 +0000> From: rwmailli...@googlemail.com
> To: users@spamassassin.apache.org
> Subject: Re: how to disable network tests?
>
> On Sat, 12 Mar 2011 15:00:57 -0600 (CST)
> Dave Funk <dbf...@engineering.uiowa.edu> wrote:
>
> > On Sat, 12 Mar 2011, RW wrote:
> >
> > > On Fri, 11 Mar 2011 13:39:58 -1000
> > > "Warren Togami Jr." <wtog...@gmail.com> wrote:
> > >
> > >> If it is taking 10 seconds per message then you likely have
> > >> some kind of serious misconfiguration.
> > >
> > >
> > > It depends on the hardware, there's plenty of SOHO hardware where
> > > 10s would be considered snappy.
> > >
> >
> > True, if running on under-powered or memory-limited hardware then
> > the 10 second time would be explainable. But in that case you'd see
> > high load-aves.
>
> Not noticing a transient high load-average is consistent with a SOHO
> server, desktop, or mail client plugin. My desktop PC takes 15+ seconds
> and spends most of its time in REs but I never notice a slowdown, even
> though it's a single core.
>
> > If the box is mostly waiting for net-test results
> > that's a config issue (or serious network problem ;).
> >
> > The OP did ask about disabling all network tests which would imply
> > that he had some reason to suspect the latter.
>
>
> You pretty much either know it's a network problem, or you're guessing.
> And if you know it's a network problem, it's a short step to knowing
> why, so my guess is that it's supposition.
>
> I think CPU limiting is a distinct possibility.
>
>
