kmemsize tcpsndbuf QoS Alerts

[mothmenace]

Hello & apologies from a relative n00b to Plesk + Linux in general (although fairly knowledgeable in web design).

I am seeing regular memory alerts in the admin, namely kmemsize & tcpsndbuf.
I am hosting only one site, no mail, and was seeing these even before the site was publicly launched.

I have tried many different ways to try and reduce memory consumption, including PHP APC caching, to no avail. What I really wanted was to try and deduce what exact process is causing the memory alerts (eg htaccess), as I am suspicious the site is not the cause.

Could you point me in the direction of a tutorial / forum etc where I can begin to find out methods for solving this problem? I am not sure if it's more a Linux question than Plesk.

Many thanks

 

[Maa]

Hello, first step would be to know what does thoss alerts mean:
It is Virtuozzo resource alerts for your container:

kmemsize
http://download.swsoft.com/virtuozzo/virtuozzo4.0/docs/en/lin/VzLinuxUBCMgmt/18770.htm

tcpsndbuf
http://download.swsoft.com/virtuozzo/virtuozzo4.0/docs/en/lin/VzLinuxUBCMgmt/18771.htm

Seems like your resources are heavily limited...

 

[mothmenace]

Thanks Maa, I checked out the resource alert descriptions. You mentioned the possibility of resources being limited, is this something I can check via the cpanel? I recently had the memory allowance upgraded to 512mb but still the same problem.

I've tried viewing ssh top, bean_counters, apache error logs, php profiler for memory use per page, but I don't feel equipped to take a step-by-step process for deducing what what is causing this.

Is it possible to see a snapshot of all the processes running when a black QoS happens?

Once again apologies if this is too far outside of Plesk topic.