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Member "gmemusage-0.2/testmem.pl" of archive gmemusage-0.2.tar.gz:

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    1 #!/usr/bin/perl -w
    2 #
    3 # an SGI gmemusage(1)-like interface to the process table.
    4 #
    5 # Excluded processes
    6 #
    7 @ExcludedProcesses = ( "/proc/0" , "/proc/2" , "/proc/3" ) ;
    8 %ProcSize = {} ;
    9 %ProcRSS = {} ;
   10 %nProc = {} ;
   11 $TotProcs = 0 ;
   12 $ls = "/bin/ls" ;
   13 #
   14 # Determine if a value is present in an array.
   15 #
   16 sub in
   17 {
   18     $val = shift @_ ;
   19     foreach $i ( @_ )
   20     {
   21 	return 1 if $val eq $i ;
   22     }
   23     return 0 ;
   24 }
   25 #
   26 # Extract info about running processes.
   27 #
   28 sub GetInfo
   29 {
   30     %ProcSize = {} ;
   31     %ProcRSS = {} ;
   32     $TotProcs = 0 ;
   33     %nProc = {} ;
   34     foreach $proc ( `$ls -d /proc/[0-9]*` )
   35     {
   36 	chop $proc ;
   37 	if ( in ( $proc , @ExcludedProcesses ) )
   38 	{
   39 	    next ;
   40 	}
   41 	$TotProcs++ ;
   42 	open ( PROC , "$proc/status" ) or next ;
   43 	while ( <PROC> )
   44 	{
   45 	    if ( /^Name:\s(.*)$/ )
   46 	    {
   47 		$ProcName = $1 ;
   48 		# Do this to avoid unnecessary warnings from perl. can remove
   49 		# later once we zap the -w .
   50 		if ( ! defined $ProcSize { $ProcName } )
   51 		{
   52 		    $ProcSize { $ProcName } = $ProcRSS { $ProcName } = 0 ;
   53 		}
   54 	    }
   55 	    if ( /^VmSize:\s*(.*)\s*kB/ )
   56 	    {
   57 		$ProcSize = $1 ;
   58 	    }
   59 	    if ( /^VmRSS:\s*(.*)\s*kB/ )
   60 	    {
   61 		$ProcRSS = $1 ;
   62 	    }
   63 	}
   64 	close PROC ;
   65 	$ProcSize { $ProcName } += $ProcSize ;
   66 	$ProcRSS { $ProcName } += $ProcRSS ;
   67 	$nProc { $ProcName }++ ;
   68     }
   69 }
   70 #
   71 # Main()
   72 #
   73 while ( 1 )
   74 {
   75     printf "%-20s%10s%10s%10s\n" , "Name" , "nProcs" , "totSize" , "totRSS" ;
   76     GetInfo ;
   77     foreach $i ( keys %nProc )
   78     {
   79 	printf ( "%-20s%10d%10d%10d\n" , $i , $nProc { $i } ,
   80 		$ProcSize { $i } , $ProcRSS { $i } ) ;
   81     }
   82     sleep 5 ;
   83 }
   84 exit 0 ;