On Sun, 2004-03-07 at 07:28, alikhani wrote: > now when users want to connect webmail on my server it is very slow and > since you see the memory usage is high and i need to increase the size > of memory .The VM Admini can increase the amount of memory to 1GB in VM > but how can i do this in linux up to 1GB or something else.
Without additional information, I don't believe this system would be slow because of the virtual machine size. Normally you'd be able to tell from a high swap rate that the machine is too small, but since you don't even have swap defined there is nothing to see. In this configuration I would expect failures (like processes abort) if the 512M is not enough. The fact that there is only 6M of the 512M free does not mean anything. It probably means your server has not seen enough data yet to use those lost 6M. If you get your virtual machine defined larger, all you need is to shutdown, logoff and logon again. You cannot do increase memory while Linux is running. Provided the VM system is set up for that, you could define VDISK for swap and define some swap space to see if you really need more room. If the VM system is short on memory then it may not be able to provide you the 512M you've been assigned and you may suffer page faults on VM. In that case making the system *smaller* would improve your performance. Your VM persons should be able to tell whether that is the case. Rob
