top processes and memory usage

From: v5034 (v5034_at_vm.vm.co)
Date: 11/26/03


Date: Tue, 25 Nov 2003 19:32:07 -0500


In top, what is the difference between "used" and "actv"? Also, can
anyone tell me which of these top process sorted by memory usage can be
removed safely to conserve RAM? How about gdmgreeter?

Thanks

--
19:10:43  up 16:16,  2 users,  load average: 0.00, 0.00, 0.00
53 processes: 52 sleeping, 1 running, 0 zombie, 0 stopped
CPU0 states:   0.0% user   0.0% system    0.0% nice   0.0% iowait 100.0% 
idle
CPU1 states:   0.3% user   0.1% system    0.0% nice   0.0% iowait  99.1% 
idle
Mem:   513264k av,  405984k used,  107280k free,       0k shrd,   73468k 
buff
                     265472k actv,   28096k in_d,    3744k in_c
Swap: 1044216k av,       0k used, 1044216k free                  174520k 
cached
   PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME CPU COMMAND
  2033 gdm       15   0 18796  18M  6888 S     0.0  3.6   1:11   0 
gdmgreeter
  1654 root      25   0 15488  15M  2064 S     0.0  3.0   0:00   1 spamd
  2022 root      15   0 12676 8320  1924 S     0.0  1.6   1:01   1 X
  1673 root      22   0  7296 7296  5676 S     0.0  1.4   0:00   0 eventserv
  1680 root      22   0  7288 7288  5668 S     0.0  1.4   0:00   1 nameserv
  1756 root      25   0  6920 6920  5508 S     0.0  1.3   0:00   1 
dlgsysloggerser
  1761 root      15   0  6748 6748  5364 S     0.0  1.3   0:00   1 
devmapserver
  2021 root      18   0  3520 3520  2820 S     0.0  0.6   0:00   0 
gdm-binary
  1941 xfs       15   0  3352 3352   884 S     0.0  0.6   0:00   0 xfs
  1973 root      19   0  3216 3216  2580 S     0.0  0.6   0:00   0 
gdm-binary
  1635 root      15   0  2540 2540  1880 S     0.0  0.4   0:01   0 sendmail
  1644 smmsp     15   0  2268 2260  1736 S     0.0  0.4   0:00   1 sendmail
  1720 root      15   0  1948 1948  1436 S     0.0  0.3   0:15   0 cupsd
  1601 root      15   0  1504 1504  1260 S     0.0  0.2   0:54   0 sshd
  1777 root      15   0  1428 1428  1144 S     0.0  0.2   0:00   1 bash
  2220 root      15   0  1392 1392  1116 S     0.0  0.2   0:00   1 bash
  2366 root      15   0  1172 1172   856 S     0.3  0.2   3:10   1 top
22284 root      15   0  1124 1124   860 R     0.3  0.2   0:46   1 top
  1615 root      15   0   864  864   744 S     0.0  0.1   0:00   1 xinetd
  1505 rpcuser   25   0   684  684   608 S     0.0  0.1   0:00   0 rpc.statd
  1464 root      15   0   580  580   504 S     0.0  0.1   0:00   1 syslogd
  1693 root      15   0   576  576   508 S     0.0  0.1   0:00   0 crond
  1486 rpc       15   0   552  552   476 S     0.0  0.1   0:00   1 portmap
  1959 daemon    15   0   528  528   472 S     0.0  0.1   0:00   1 atd
     1 root      15   0   476  476   424 S     0.0  0.0   0:35   1 init
  1663 root      15   0   444  444   392 S     0.0  0.0   0:02   0 gpm
  1468 root      15   0   424  424   376 S     0.0  0.0   0:00   1 klogd
  1967 root      22   0   396  396   348 S     0.0  0.0   0:00   0 mingetty
  1968 root      22   0   396  396   348 S     0.0  0.0   0:00   0 mingetty
  1969 root      22   0   396  396   348 S     0.0  0.0   0:00   0 mingetty
  1970 root      22   0   396  396   348 S     0.0  0.0   0:00   0 mingetty
  1971 root      22   0   396  396   348 S     0.0  0.0   0:00   0 mingetty
  1972 root      19   0   396  396   348 S     0.0  0.0   0:00   0 mingetty
     2 root      RT   0     0    0     0 SW    0.0  0.0   0:00   0 
migration/0
     3 root      RT   0     0    0     0 SW    0.0  0.0   0:00   1 
migration/1
     4 root      15   0     0    0     0 SW    0.0  0.0   0:00   0 keventd
     5 root      34  19     0    0     0 SWN   0.0  0.0   0:00   0 
ksoftirqd_CPU0
     6 root      34  19     0    0     0 SWN   0.0  0.0   0:00   1 
ksoftirqd_CPU1
    11 root      25   0     0    0     0 SW    0.0  0.0   0:00   0 bdflush
     7 root      15   0     0    0     0 SW    0.0  0.0   0:00   0 kswapd
     8 root      15   0     0    0     0 SW    0.0  0.0   0:00   0 
kscand/DMA
     9 root      15   0     0    0     0 SW    0.0  0.0   1:09   0 
kscand/Normal
    10 root      15   0     0    0     0 SW    0.0  0.0   0:00   0 
kscand/HighMem
    12 root      15   0     0    0     0 SW    0.0  0.0   0:30   1 kupdated
    13 root      25   0     0    0     0 SW    0.0  0.0   0:00   0 
mdrecoveryd
    21 root      15   0     0    0     0 SW    0.0  0.0   0:02   1 kjournald
    79 root      25   0     0    0     0 SW    0.0  0.0   0:00   0 khubd