top reports that 99% of the memory is used. But when sorted by memory usage Shift+M I only see about 20% being used. How can I find out which process is using all my memory?
$ top
top - 21:13:30 up 1:47, 1 user, load average: 1.03, 0.84, 0.85
Tasks: 70 total, 1 running, 69 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.9%us, 0.3%sy, 0.0%ni, 94.6%id, 0.2%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 7629464k total, 7404500k used, 224964k free, 84964k buffers
Swap: 0k total, 0k used, 0k free, 5718640k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3463 elastics 20 0 3646m 1.2g 16m S 11 16.8 25:40.03 java
4146 ubuntu 20 0 27112 9692 1756 S 0 0.1 0:00.79 bash
972 whoopsie 20 0 183m 4272 3052 S 0 0.1 0:00.01 whoopsie
4049 root 20 0 73436 3596 2792 S 0 0.0 0:00.02 sshd
1090 www-data 20 0 64104 3228 968 S 0 0.0 0:02.62 nginx
664 root 20 0 50032 2900 2292 S 0 0.0 0:00.01 sshd
1 root 20 0 24320 2284 1360 S 0 0.0 0:01.62 init
1119 root 20 0 105m 1656 1088 S 0 0.0 0:02.86 monit
4145 ubuntu 20 0 73436 1544 748 S 0 0.0 0:00.11 sshd
681 syslog 20 0 247m 1536 1120 S 0 0.0 0:00.73 rsyslogd
541 root 20 0 23436 1368 1020 S 0 0.0 0:00.00 vsftpd
1089 root 20 0 62912 1324 220 S 0 0.0 0:00.00 nginx
295 root 20 0 21528 1316 792 S 0 0.0 0:00.06 udevd
4844 ubuntu 20 0 17328 1244 944 R 0 0.0 0:00.05 top
1062 Debian-e 20 0 47472 1116 664 S 0 0.0 0:00.00 exim4
688 messageb 20 0 23940 1004 672 S 0 0.0 0:00.02 dbus-daemon
773 root 20 0 19112 996 768 S 0 0.0 0:00.01 cron
746 root 20 0 14504 968 804 S 0 0.0 0:00.00 getty
761 root 20 0 14504 968 804 S 0 0.0 0:00.00 getty
764 root 20 0 14504 964 804 S 0 0.0 0:00.00 getty
751 root 20 0 14504 960 804 S 0 0.0 0:00.00 getty
762 root 20 0 14504 960 804 S 0 0.0 0:00.00 getty
1142 root 20 0 14504 960 804 S 0 0.0 0:00.00 getty
350 root 20 0 21456 776 364 S 0 0.0 0:00.00 udevd
351 root 20 0 21456 728 320 S 0 0.0 0:00.00 udevd
774 root 20 0 4328 672 524 S 0 0.0 0:00.00 acpid
285 root 20 0 17232 640 448 S 0 0.0 0:00.05 upstart-udev-br
505 root 20 0 7264 604 108 S 0 0.0 0:00.00 dhclient3
441 root 20 0 15188 388 196 S 0 0.0 0:00.01 upstart-socket-
775 daemon 20 0 16908 384 220 S 0 0.0 0:00.00 atd
2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0 0.0 0:00.13 ksoftirqd/0
4 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/0:0
5 root 20 0 0 0 0 S 0 0.0 0:00.02 kworker/u:0
6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
7 root RT 0 0 0 0 S 0 0.0 0:00.02 watchdog/0
8 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1
9 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/1:0
10 root 20 0 0 0 0 S 0 0.0 0:00.30 ksoftirqd/1
11 root RT 0 0 0 0 S 0 0.0 0:00.02 watchdog/1
12 root 0 -20 0 0 0 S 0 0.0 0:00.00 cpuset
13 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper
Tried ps_mem.py but couldn't tell which process was the culprit:
$ sudo ./ps_mem.py
Private + Shared = RAM used Program
188.0 KiB + 35.5 KiB = 223.5 KiB atd
176.0 KiB + 58.0 KiB = 234.0 KiB acpid
208.0 KiB + 82.0 KiB = 290.0 KiB upstart-socket-bridge
272.0 KiB + 89.0 KiB = 361.0 KiB cron
284.0 KiB + 105.0 KiB = 389.0 KiB upstart-udev-bridge
568.0 KiB + 15.0 KiB = 583.0 KiB dhclient3
456.0 KiB + 173.5 KiB = 629.5 KiB vsftpd
628.0 KiB + 45.5 KiB = 673.5 KiB dbus-daemon
604.0 KiB + 74.5 KiB = 678.5 KiB exim4
596.0 KiB + 197.5 KiB = 793.5 KiB sudo
808.0 KiB + 124.5 KiB = 932.5 KiB monit
1.0 MiB + 92.5 KiB = 1.1 MiB rsyslogd
832.0 KiB + 369.0 KiB = 1.2 MiB udevd (3)
1.1 MiB + 163.5 KiB = 1.3 MiB init
956.0 KiB + 384.0 KiB = 1.3 MiB getty (6)
1.8 MiB + 1.2 MiB = 3.0 MiB nginx (2)
2.6 MiB + 464.5 KiB = 3.0 MiB whoopsie
1.2 MiB + 2.1 MiB = 3.3 MiB sshd (3)
9.0 MiB + 92.5 KiB = 9.1 MiB bash
1.3 GiB + 536.0 KiB = 1.3 GiB java
---------------------------------
1.3 GiB
=================================
free reports the same:
$ free -m
total used free shared buffers cached
Mem: 7450 7233 216 0 87 5514
-/+ buffers/cache: 1631 5819
Swap: 0 0 0
Can someone help me debug?
sudo top? – kiri Oct 11 '13 at 00:31