Developers of Sympa

[Sergiy Zhuk <address@concealed>]

hi

On Thu, 6 Oct 2005, [ISO-8859-1] Olivier Sala?n - CRU wrote:

>    4. the wwsympa.fcgi process is somehow fat (around 200 Mb for 2000 lists)

Same with task_manager.pl which is somehow even bigger.
With about 8,500 lists, each fastcgi process takes about 512Mb of RAM, while
task manager is at 530Mb or so.

> (4) we didn't find out why wwsympa.fcgi processes might be that big. But
> maybe it's acceptable if wwsympa.fcgi has good performences because a
> few of them would be enough then.

AFAIR the only difference between task manager, cgi and the rest of
processes is that task manager and cgis touch all the lists, while the rest
of processes only cache data for the ones they are delivering mail to or
processing bounces etc.
That means we're gonna have the same problem with them if all of the lists
are active (receiving mail that is).
Say sympa.pl process is about 400Mb on my system now and it's growing...
I think something is wrong with how sympa is handling memory allocation,
since it looks like it takes an incredible amount of RAM per list, e.g.
the average config file with all extra spaces and formatting still takes
about 1kb and the whole sympa database is about 25Mb only.
I don't understand how that could lead to 512Mb usage.
What makes it even more interesting is that all that memory is gone right on
start-up, when we're scanning all configs and such.
It doesn't change much after that, meaning we can't blame it on memory
leaks.

thanks

-- 
rgds,
serge