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Linux: Removing terminated processes

Time:12-16

Why do these terminated python processes still take up memory? I killed them with kill before.

How do I remove them without rebooting the system?

this is the output of top

top - 01:48:34 up  5:25,  2 users,  load average: 0.18, 0.15, 0.73
Tasks: 282 total,   1 running, 238 sleeping,  43 stopped,   0 zombie
%Cpu(s):  0.1 us,  0.0 sy,  0.0 ni, 99.9 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem :  15483.1 total,   4861.2 free,   9689.3 used,    932.6 buff/cache
MiB Swap:   7971.0 total,   7462.0 free,    509.0 used.   5437.1 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME  COMMAND                                                                                                                                 
   8516 matthia   20   0   89568   9604   8072 S   0.0   0.1   0:00.06 systemd                                                                                                                                 
   8523 matthia   20   0  323044   2996     16 S   0.0   0.0   0:00.00 (sd-pam)                                                                                                                                
   8538 matthia   20   0  507976   8184   6972 S   0.0   0.1   0:00.02 pulseaudio                                                                                                                              
   8588 matthia   20   0   76484   5756   5220 S   0.0   0.0   0:00.00 dbus-daemon                                                                                                                             
   8590 matthia   20   0  522672  10796   7672 S   0.0   0.1   0:00.00 gvfsd                                                                                                                                   
   8595 matthia   20   0  379792   8264   7140 S   0.0   0.1   0:00.00 gvfsd-fuse                                                                                                                              
   8852 matthia   20   0  163784   5260   4080 S   0.0   0.0   0:00.37 sshd                                                                                                                                    
   8855 matthia   20   0  235756   4616   3256 S   0.0   0.0   0:00.14 bash                                                                                                                                    
   9640 matthia   20   0  726992  52484  36644 T   0.0   0.3   0:00.18 python                                                                                                                                  
   9661 matthia   20   0  953636 254480  19736 T   0.0   1.6   1:27.65 python                                                                                                                                  
   9662 matthia   20   0  953736 225512  19272 T   0.0   1.4   1:27.68 python                                                                                                                                  
   9663 matthia   20   0  953768 251920  19736 T   0.0   1.6   1:27.68 python                                                                                                                                  
   9664 matthia   20   0  953744 236568  19736 T   0.0   1.5   1:27.67 python                                                                                                                                  
   9665 matthia   20   0  953644 217700  19356 T   0.0   1.4   1:27.66 python                                                                                                                                  
   9666 matthia   20   0  953600 246592  19736 T   0.0   1.6   1:27.65 python                                                                                                                                  
   9693 matthia   20   0  726992 274520  36152 T   0.0   1.7   0:00.21 python                                                                                                                                  
   9714 matthia   20   0  953636 476396  19532 T   0.0   3.0   0:03.29 python                                                                                                                                  
   9715 matthia   20   0  953736 476328  19436 T   0.0   3.0   0:03.29 python                                                                                                                                  
   9716 matthia   20   0  953768 476228  19724 T   0.0   3.0   0:03.30 python                                                                                                                                  
   9717 matthia   20   0  953744 475772  19172 T   0.0   3.0   0:03.29 python                                                                                                                                  
   9718 matthia   20   0  953644 475728  19252 T   0.0   3.0   0:03.30 python                                                                                                                                  
   9719 matthia   20   0  953600 476048  19464 T   0.0   3.0   0:03.29 python                                                                                                                                  
   9733 matthia   20   0  726992 277788  36444 T   0.0   1.8   0:00.21 python                                                                                                                                  
   9754 matthia   20   0  953624 479008  19684 T   0.0   3.0   2:03.45 python                                                                                                                                  
   9755 matthia   20   0  953744 479060  19664 T   0.0   3.0   2:03.44 python                                                                                                                                  
   9756 matthia   20   0  953780 479232  19688 T   0.0   3.0   2:03.39 python                                                                                                                                  
   9757 matthia   20   0  953744 478560  19464 T   0.0   3.0   2:03.43 python                                                                                                                                  
   9758 matthia   20   0  953628 478732  19448 T   0.0   3.0   2:03.41 python                                                                                                                                  
   9759 matthia   20   0  953600 478672  19612 T   0.0   3.0   2:03.42 python                                                                                                                                  
   9793 matthia   20   0  726992 278024  36296 T   0.0   1.8   0:00.21 python                                                                                                                                  
   9814 matthia   20   0  953624 471732  19568 T   0.0   3.0   0:10.65 python                                                                                                                                  
   9815 matthia   20   0  953744 476700  19568 T   0.0   3.0   0:10.67 python                                                                                                                                  
   9816 matthia   20   0  953780 473304  19568 T   0.0   3.0   0:10.68 python                                                                                                                                  
   9817 matthia   20   0  953744 478216  19404 T   0.0   3.0   0:10.65 python                                                                                                                                  
   9818 matthia   20   0  953628 477136  19408 T   0.0   3.0   0:10.65 python                                                                                                                                  
   9819 matthia   20   0  953600 476736  19568 T   0.0   3.0   0:10.66 python                                                                                                                                  
   9861 matthia   20   0  726856 282796  37132 T   0.0   1.8   0:00.21 python                                                                                                                                  
   9882 matthia   20   0  954020 485460  20132 T   0.0   3.1   0:15.55 python                                                                                                                                  
   9883 matthia   20   0  953972 485428  20000 T   0.0   3.1   0:15.51 python                                                                                                                                  
   9884 matthia   20   0  953636 485464  20128 T   0.0   3.1   0:15.61 python                                                                                                                                  
   9885 matthia   20   0  953612 485100  20028 T   0.0   3.1   0:15.59 python                                                                                                                                  
   9886 matthia   20   0  953492 484860  19952 T   0.0   3.1   0:15.59 python                                                                                                                                  
   9887 matthia   20   0  953500 484960  20068 T   0.0   3.1   0:15.54 python                                                                                                                                  
   9897 matthia   20   0  726868 288000  36904 T   0.0   1.8   0:00.19 python                                                                                                                                  
   9898 matthia   20   0  217080    948    872 T   0.0   0.0   0:00.00 tee                                                                                                                                     
   9922 matthia   20   0  954020 490580  19516 T   0.0   3.1   0:06.89 python                                                                                                                                  
   9923 matthia   20   0  953608 490400  19744 T   0.0   3.1   0:06.86 python                                                                                                                                  
   9924 matthia   20   0  953568 490224  19564 T   0.0   3.1   0:06.83 python                                                                                                                                  
   9925 matthia   20   0  953612 490228  19564 T   0.0   3.1   0:06.89 python                                                                                                                                  
   9926 matthia   20   0  953492 490096  19552 T   0.0   3.1   0:06.90 python                                                                                                                                  
   9927 matthia   20   0  953500 490296  19744 T   0.0   3.1   0:06.88 python

CodePudding user response:

State T is not terminated, it is "stopped by job control signal" (man top).

To get the processes into this state, you probably sent SIGSTOP to them (kill -STOP ...). Instead, you should have sent a SIGTERM (the default), and you can still do that now. If that doesn't work then send a SIGKILL.

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