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Full Discussion: can I use command "ps" to find memory leak
Top Forums Programming can I use command "ps" to find memory leak Post 25062 by chenhao_no1 on Wednesday 24th of July 2002 08:46:53 AM
Old 07-24-2002
can I use command "ps" to find memory leak
1 . Thanks for everyone who reads the post first.
2 . I have a idea : whether can I use command "ps" to find which application acquire memory usually .
3 . I do not confirm whether it is correctly , then I do an experiment in Tru64 unix :
I write the simple programe a.c below :

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
char *p;

while(1)
{
p = (char *) malloc(81920);

sleep(1);
}

return 0;
}

cc -g a.c -o a.out
./a.out

then I type ps uax | grep a.out | grep -v grep every 2 seconds , I find that the RSS and VSZ increments .
4 . So I guess that maybe I can use "ps aux" command to determine whether a programe acquire memory from system usually (I activate ps command periodly using crontab).
 

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LEARN ABOUT REDHAT

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep.  If no file is speci-
       fied, then the standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed	if  necessary  and
       fed to grep.

       If  zgrep  is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep.  If the GREP environment variable is set, zgrep uses
       it as the grep program to be invoked. For example:

	   for sh:  GREP=fgrep	zgrep string files
	   for csh: (setenv GREP fgrep; zgrep string files)

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)

																	  ZGREP(1)
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