Well, this is hardly a qmail question. It's more a system
administration/Linux question. Have you got the 'top' command? Try
that? Have you got the 'ps' command? Try that.
I don't know about Linux so much, but some Operating Systems use
memory that has never had anything placed in it in preference to
memory that has had something loaded into it.
What that means is that if you run 100 different programs, rather than
reuse the one piece of memory for each program, the OS will load in
the first program, leave it in memoryt, and load in the next program
at the next available piece of memory. Over time this has the effect
of using all your memory, but of course the OS is just being smart
about caching. That may be all that's happened with your system.
Relating to qmail. qmail is a very small consumer of memory and is
unlikely to be relevant to any interpretation you are making on this
output.
Regards.
On Sun, Feb 04, 2001 at 08:04:47PM +0530, Sumith Ail wrote:
> Hello,
>
> We have just received our server which is a Dual PIII with 512 MB RAM , RH Linux 6.2
>Box. I have installed qmail on this with tcpserver, Now the meminfo shows
> cat /proc/meminfo
>
> total: used: free: shared: buffers: cached:
> Mem: 529530880 364380160 165150720 72847360 300982272 24657920
> Swap: 1048551424 0 1048551424
> MemTotal: 517120 kB
> MemFree: 161280 kB
> MemShared: 71140 kB
> Buffers: 293928 kB
> Cached: 24080 kB
> BigTotal: 0 kB
> BigFree: 0 kB
> SwapTotal: 1023976 kB
> SwapFree: 1023976 kB
>
> There is hardly anybody using this server...please let me know how can I find out
>which process is using so much of memory.
>
> Kind Regards
> Sumith
>
