Re: [PHP4BETA] Where does my memory go?

Lars Torben Wilson writes: > Alex zhang writes: > > Hi,there > > I have one server(Linux6.0+Apache+PHP+Mysql). > > First I have 256M memory(from "top" result), then > > after a few days, it just 3M memory left, then always > > about 3M .If I reboot the computer, it changed to > > 256M. > > But I can see it reduce little by little, then about > > 3M > > again. I have about 128M swap.And I want to know the > > reason for that. > > > > Thanx in advance > > > > > > alex > > Are you referring to the amount of memory reported by 'free', or are God I hate following up to myself. :) I meant "the amount of memory reported _as_ 'free'", as opposed to taking the sum of all the httpd processes (which maybe could indicate an httpd/PHP problem). > you talking about the amount of memory taken up by your webserver > processes? In the first case, it's a fairly common Linux question and > the answer is in the Linux FAQ: > > http://www.linuxdoc.org/FAQ/Linux-FAQ-7.html#ss7.6 > > The ``free'' figure printed by free doesn't include memory used as a > disk buffer cache--shown in the ``buffers'' column. If you want to > know how much memory is really free add the ``buffers'' amount to > ``free''--newer versions of free print an extra line with this info. > > The disk buffer cache tends to grow soon after starting Linux up. As > you load more programs and use more files, the contents get > cached. It will stabilize after a while. > > Sorry if this isn't actually the problem. > > > Cheers, > > Torben -- +----------------------------------------------------------------+ |Torben Wilson <torben@php.net> Netmill iTech| |http://www.coastnet.com/~torben http://www.netmill.fi| |Ph: 1 250 383-9735 torben@netmill.fi| +----------------------------------------------------------------+