On Fri, 2010-07-30 at 15:35 -0400, Bowie Bailey wrote:
> On 7/30/2010 3:26 PM, Bowie Bailey wrote:
> >  On 7/30/2010 3:08 PM, Emin Akbulut wrote:
> >> Simply disable regular ruleset and test again. If it takes 6.93-5.78
> >> seconds or
> >> something similar, you are right.
> > I'm actually having the same issue on my new home server.  I set up SA
> > and got it working.  Then I ran sa-compile, enabled the plugin in
> > v320.pre, and restarted.  The logs show that it is using the compiled
> > rules, but there is no difference in scan speeds at all.
> >
> > How would I go about disabling the regular ruleset?
> 
> Forgot to mention...  My server is running under CentOS 5.5, so this is
> not just a Windows issue.
> 
I'm confused now. I peeked inside spamd and found Perl source: its just
a script with 

        #!/usr/bin/perl -T -w

        eval 'exec /usr/bin/perl -T -w -S $0 ${1+"$@"}'

as the first three lines. So, the start up would appear to be: 
(1) read and compile spamd Perl source, 
(2) load the rules, 
(3) convert them into Perl, 
(4) compile them into executable form. 

As I understand it Perl, unlike Python, can't separate out the process
of converting source into the P-code that the Perl interpreter runs, so
presumably all 'precompiling the rules' can do is step 3. I can see that
doing step 3 when the ruleset changes will speed up spamassasin start-up
time and so will make it a lot faster per message. It will also improve
spamd start-up times. But, does it have any effect at all on spamd scan
times? I suspect not.


Martin




Now, I can understand that precompiling the rules can 

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