My opinion is that Redhat/CentOS or Ubuntu LTS (based on Debian, I know) are more likely to have the best performing drivers and the most tested and stable configurations, compared with other distros. Thus, I wouldn't stray from those for prod systems. Then again, I'm no Linux expert and I don't want to start a holly war about which distro is the best. Your choice.

I would care about using 64-bit to access more RAM only after the performance is satisfactory. Thus, I would test 32-bit first. Also, running 32-bit Apache + mod_perl on a 64-bit OS would give you at most 4 GB of RAM for Apache. That's way beyond enough as you shouldn't need more than 1-2 GB for this process.

Face it, your hardware is very old. I'm not one to not understand a lack of resources (believe me) but we're taking a single core CPU that was launched 8-9 years ago http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#.22Irwindale.22_.2890_nm.29 I don't know if you have 2x CPUs but, even then, your CPU power is very very low if I got the CPU model correctly.



On Wed, May 14, 2014 at 3:25 PM, Mimiko <vbvbrj@gmail.com> wrote:
On 14.05.2014 12:22, Bogdan Iosif wrote:
Try using a more common Linux distro and try both 32 and 64 bit Apache +
mod_perl.

More common linux distributive? Isn't Debian a common linux distributive? Why use x32 bit and not allowing to spread mysql's or apache's files in more RAM? x32 can address natively only 3 and a half.



Your hardware seems slow as far as MySQL is concerned and the CPU is
probably also slow. Based on what I've seen on my system, the CPU is
indeed the bottleneck for OTRS but I thought my hardware is crap and
when I saw it's at least twice as fast as yours, I thought that's the
problem.

Well, I don't know what to say about hardware. Mysql is on IBM System x3100 M3 with Xeon X3400 CPU, and otrs is on Fujitsu Siemens Primergy Econel 200 with Intel Xeon 2.8GHz CPU. This isn't enough for normal run for 20 agents and 100 customers with 2-3 tickets per day?


--
Mimiko desu.
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