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Full Discussion: processes
Top Forums UNIX for Advanced & Expert Users processes Post 6008 by rwb1959 on Tuesday 28th of August 2001 11:27:09 AM
Old 08-28-2001
zombies

"zombie" processes do not consume any CPU or
memory whatsoever. The only system resource they
consume is a slot in the process table.
zombies typically occurr when some process
terminates abnormally and it's parent no longer
exists or the process itself is a process group
leader. You may want to check the man page
on the wait(2) system call or the wait(1)
command (in the case of a shell script).

You might want to find out what is causing
these zombies and eliminate the problem at the
source. In any case, removeing zombies will not
do anything to increase performance for the
reason stated above.
 

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kill(1) 						      General Commands Manual							   kill(1)

Name
       kill - send a signal to a process

Syntax
       kill [-sig] processid...
       kill -l

Description
       The command sends the TERM (terminate, 15) signal to the specified processes.  If a signal name or number preceded by `-' is given as first
       argument, that signal is sent instead of terminate.  For further information, see

       The terminate signal kills processes that do not catch the signal; `kill -9 ...' is a sure kill, as the KILL (9) signal cannot  be  caught.
       By convention, if process number 0 is specified, all members in the process group (that is, processes resulting from the current login) are
       signaled.  This works only if you use and not if you use To kill a process it must either belong to you or you must be superuser.

       The process number of an asynchronous process started with `&' is reported by the shell.  Process numbers can also be  found  by  using	It
       allows job specifiers ``%...''  so process ID's are not as often used as arguments.  See for details.

Options
       -l   Lists  signal  names.  The signal names are listed by `kill -l', and are as given in /usr/include/signal.h, stripped of the common SIG
	    prefix.

See Also
       csh(1), ps(1), kill(2), sigvec(2)

																	   kill(1)
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