[rt-users] RT : Apache Resource Usage

[Jesse Vincent]

On Thu, Oct 22, 2009 at 10:45:20AM +0530, Varun wrote:
> Hello All
> 
>  
> 
> I have RT 3.6.3 with fast cgi implemented and apache 2.0 with 8GB of
> physical RAM. My problem is that after every 3 days my physical ram gets
> fully utilized and apache starts using swap memory. So my machine gets on
> its knees. I have no other application running on my machine where I have
> apache installed and no other process is using memory when I see in top
> command its just my 30 fastcgi processes takes significant amount of RAM i.e
> nearly 98% and I cant cut this 30 process to low level as by doing this,
> performance will degrade on concurrent request of RT users. Can any one
> suggest me how I can get best of both the worlds i.e giving good performance
> plus limiting memory consumption also. I have RHEL 4 and its kernel version
> is 2.6.9-42 

We've certainly done a fair bit of work on memory utilization in more
recent versions of RT. I know that recent 3.8 releases include fixes for
a number of memory leaks we've managed to track down.  30 concurrent
FastCGI processes suggests that you need to be able to handle 30 people
making requests of RT at exactly the same instant. If that's true,
you'll definitely want to come up to a more recent RT as there are a
fair number of performance improvements in addition to memory efficiency
improvements.

Best,
Jesse