My Ubuntu 10.04 server slowly eats up memory. If you look at tops, it slowly starts using swap space. Eventually the amount of free memory drops too low and the kernel kills the worst process.
A top on the server sorted by RES looks like this:
top - 20:39:41 up 30 days, 5:43, 1 user, load average: 0.00, 0.01, 0.05
Tasks: 114 total, 1 running, 113 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 509424k total, 495236k used, 14188k free, 37876k buffers
Swap: 262140k total, 159184k used, 102956k free, 131312k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12210 amavis 20 0 68804 43m 3616 S 0 8.8 0:05.30 amavisd-new
12313 amavis 20 0 67480 40m 3252 S 0 8.2 0:03.54 amavisd-new
2321 root 20 0 46572 24m 948 S 0 4.9 0:04.26 saslauthd
2323 root 20 0 44988 24m 936 S 0 4.8 0:04.10 saslauthd
2322 root 20 0 46440 23m 932 S 0 4.8 0:04.30 saslauthd
2324 root 20 0 45780 23m 924 S 0 4.6 0:04.21 saslauthd
2325 root 20 0 42880 22m 1016 S 0 4.5 0:03.91 saslauthd
1991 mysql 20 0 138m 18m 2804 S 0 3.8 10:57.95 mysqld
2201 amavis 20 0 64916 14m 2556 S 0 2.9 0:35.98 amavisd-new
18225 root 20 0 37644 9164 5052 S 0 1.8 0:27.51 apache2
29781 www-data 20 0 38772 8272 3216 S 0 1.6 0:00.22 apache2
...
My question is, how can I see what process is responsible for eating up memory? The largest program, MySQL, seems pretty OK with just 138m taken.
