APC problem

[funkoff]

Hi,

My server is cloud 4bg ram 2 cpu. 

when i try to release apc cache option my server going down.server ram usage normally max 1.2 gb but at that time it goes 4 gb. i am getting to many sql connection errors or others. and i have newrelic account problem is this function  "CacheApcCore::_set" it is response time is very slow . 

max active user is 20.  

if i turn off apc server server is pretty good but you know web site speed is slow. 

this is my dilemma. 

What do you prefer. xcache could be better for us ?

Thanks.

[funkoff]

is this question hard or ... why this forum is so quite. 

thanks