www-data 13576  1.4  0.2 304556 22396 ?        S    12:11   0:00 /usr/sbin/apache2 -k start

root@web2:~# cat /proc/13576/limits
Limit                     Soft Limit           Hard Limit           Units
Max cpu time              unlimited            unlimited            seconds
Max file size             unlimited            unlimited            bytes
Max data size             unlimited            unlimited            bytes
Max stack size            8388608              unlimited            bytes
Max core file size        unlimited            unlimited            bytes
Max resident set          unlimited            unlimited            bytes
Max processes             unlimited            unlimited            processes
Max open files            1024                 1024                 files
Max locked memory         65536                65536                bytes
Max address space         unlimited            unlimited            bytes
Max file locks            unlimited            unlimited            locks
Max pending signals       16382                16382                signals
Max msgqueue size         819200               819200               bytes
Max nice priority         20                   20
Max realtime priority     0                    0
Max realtime timeout      unlimited            unlimited            us
root@web2:~#