Jonatan, In my opinion your virtual machines have a very large memory (4G) if you only want to run the basic and a few daemons cut it and try again I belive the buffers are used because you have memory available to spare...
chp...@refugio:~$ free total used free shared buffers cached Mem: 2061076 2019148 41928 0 123156 586100 -/+ buffers/cache: 1309892 751184 Swap: 1959800 0 1959800 I'm running X, firefox, chrome, kde and some daemons... On Wed, Jun 2, 2010 at 10:06 AM, Jonatan Soto <seniledemen...@gmail.com> wrote: > Hi list, > > I'm facing a problem with lenny regarding to memory usage. > > I have 4 VM lenny based on top of a VMWare ESXi. The system is running for a > few days and top command shows a very high amount of memory consumption for > each server. I have a little knowledge of how linux (kernel 2.6) manages > memory. A nice resource I found is this: > http://www.linuxhowtos.org/System/Linux%20Memory%20Management.htm > > So, I understand that cached memory may be free if some application requires > it but I don't understand why lenny is consuming 2GB of physical memory. > It's worth to mention that all the systems are running with only the > standard package installed and few additional daemons for each server. > > I post what top command shows in order to provide better clues of what's > going on: > > Server1: > top - 18:47:12 up 12 days, 3:57, 2 users, load average: 0.00, 0.00, 0.00 > Tasks: 53 total, 2 running, 51 sleeping, 0 stopped, 0 zombie > Mem: 3097764k total, 2901684k used, 196080k free, 156460k buffers > Swap: 578300k total, 0k used, 578300k free, 592736k cached > additional daemons -> apache2, bind9, sshd > > Server2: > top - 18:48:30 up 12 days, 2:29, 2 users, load average: 0.00, 0.00, 0.00 > Tasks: 55 total, 1 running, 54 sleeping, 0 stopped, 0 zombie > Mem: 3097764k total, 2412008k used, 685756k free, 145204k buffers > Swap: 915664k total, 0k used, 915664k free, 155112k cached > additional daemons -> apache2, sshd > > Server3: > top - 18:52:10 up 12 days, 2:32, 2 users, load average: 0.00, 0.00, 0.00 > Tasks: 72 total, 1 running, 71 sleeping, 0 stopped, 0 zombie > Mem: 3097764k total, 2263200k used, 834564k free, 49152k buffers > Swap: 2928632k total, 0k used, 2928632k free, 107700k cached > additional daemons -> lvm, sshd > > Server4: > top - 16:50:19 up 1 day, 6:42, 2 users, load average: 0.00, 0.00, 0.00 > Tasks: 58 total, 1 running, 57 sleeping, 0 stopped, 0 zombie > Mem: 3097764k total, 272300k used, 2825464k free, 126164k buffers > Swap: 1341388k total, 0k used, 1341388k free, 53196k cached > additional daemons -> bind9, sldap, samba, sshd > > -------------------- > > Note that I've recently rebooted Server4 and it has lower memory consumption > rather than the others and it is running more daemons. > May be this issue is a misconfiguration of my servers or a memory leak? > Should I tweak something in order to improve memory management? > > Any help would be much appreciated. > > PD: Apache2 is installed using default configuration of the Apache2 official > Debian release. > > > > > > -- Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship. Carl Sagan (Contact) Absolute certainty is a privilege of uneducated minds-and fanatics. It is, for scientific folk, an unattainable ideal. Cassius J. Keyser Jaime Ochoa Malagón Arquitecto de Soluciones Cel: +52 (55) 1021 0774 -- To UNSUBSCRIBE, email to debian-amd64-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/aanlktimqoamr_knb01x03xsr3oufxas_bl8na6put...@mail.gmail.com