> > > any idea what might be causing the performance problem? > > What version of memcached are you using?
I am running the newest version of memcached available, that is actually 1.4.1 > > If you do a quick strace of the process, is it calling epoll_wait (and > similar) or select()/poll()? I am kind of beginner admin so I am not really sure on how to do the strace, also at this moment I am unable to replicate the problem because we stopped using memcached after this problem showed up When I add memcached to my script the entire *website* I run go down in a matter of 5 minutes, if you really need this info to find my problem I will run memcached again to find out > Can you verify that yor host is not using any swap, and is not actively > swapping? (watch vmstat 1 for a minute or two, the si/so columns). The host is not using any swap (zero) I am 100% positive, there is more than 6GB of ram free at the moment of a problem and cpu usage is minimal > Are you using large multigets at all? I have no idea what is "multigets", care to explain? > Finally, can you pastebin the output of "stats" and "stats settings" > somewhere? (assuming you're on 1.4) I am guessing you need this for a server at the moment of performance decline, right?
