> From: "Jeff Stuart" <jstuart@[...].net>
> To: "Gunther Birznieks" <gunther@[...].com>, <modperl@[...].org>
> Subject: RE: Modperl/Apache deficiencies... Memory usage.
> Date: Tue, 18 Apr 2000 02:07:24 -0400
> 
> I understand that.  :)  And that was something that I had to learn myself.
> :)  It's a BAD thing when suddenly your httpd process takes up 100 MB.  :)
> It's just that it sounded like Shane was saying that his httpds were
> starting OUT at 4 to 6 MB.  That sounded a little unusual to me but then
> again, I've pared down my httpd config so that I don't have things in that 
> I
> don't need.
> 
> I'm just curious as to what he has in there.

Why not post here the .conf files and then compare them ?

> 
> --
> Jeff Stuart
> jstuart@[...].net
> 
> -----Original Message-----
> From: Gunther Birznieks [mailto:gunther@[...].com]
> Sent: Tuesday, April 18, 2000 1:24 AM
> To: modperl@[...].org
> Subject: RE: Modperl/Apache deficiencies... Memory usage.
> 
> If you aren't careful with your programming, an apache HTTPD can always
> grow pretty quickly because Perl never releases the RAM it allocates
> previously. While it does that reference count garbage collection, that is
> internal to the RAM that was allocated.
> 
> Let's say you need to sort a record set returned from a DBI call in an
> unusual perl-like way. If you do this "in memory", you need an array to
> hold the entire recordset in memory at once. If you do this, though, you
> will allocate the RAM for that one request that sorted the array and then
> the HTTPD will remain that size forever.
> 
> Keeping the higher RAM allocation is good for performance if you have the
> RAM of course. So this is one of those design tradeoffs. And Perl was not
> really written to be a persistent language, so again, the tradeoff of
> operational speed seems to make sense versus persistent memory usage.
> 
> Later,
>     Gunther
> 
> At 12:25 AM 4/18/00 -0400, Jeff Stuart wrote:
>  >Shane, question for you.  No offense intended here at all but what do you
>  >have in your apache servers (other than mod_perl) that use 4 to 6 MB?  
> I've
>  >got one server that I'm working on that handles close 1 Mil hits per day
>  >than runs WITH mod_perl that uses 4 to 6 MB.  ;-)  Without mod_perl, it
>  >takes up around 500 to 800 KB.   Now on another server my mod_perl server
>  >uses about 13 Mb per but it's my devel machine so I've got a lot of stuff
>  >loaded that I wouldn't have in a production server.
>  >
>  >--
>  >Jeff Stuart
>  >jstuart@[...].net
>  >
>  >-----Original Message-----
>  >From: shane@[...].com [mailto:shane@[...].com]
>  >Sent: Saturday, April 15, 2000 6:46 PM
>  >To: Perrin Harkins
>  >Cc: modperl@[...].org
>  >Subject: Re: Modperl/Apache deficiencies... Memory usage.
>  >
>  >Your apache processes would be the size of a stock
>  >apache process, like 4-6M or so, and you would have 1 process that
>  >would be 25MB or so that would have all your registry in it.
> 
> __________________________________________________
> Gunther Birznieks (gunther.birznieks@extropia.com)
> Extropia - The Web Technology Company
> http://www.extropia.com/
> 

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