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Full Discussion: Perl program to simulate Least Recently Loaded paging
Top Forums Shell Programming and Scripting Perl program to simulate Least Recently Loaded paging Post 302559384 by guidely on Tuesday 27th of September 2011 02:56:05 AM
Old 09-27-2011
Perl program to simulate Least Recently Loaded paging
Hi, If I want to write perl program that simulated Least Recently Loaded(LRL) to calculate page fault:
The user must input page access and number of page fram that need to be greater than 3
Example
Code:
Page Access: 5, 3, 4, 1, 7, 5, 3, 2, 3, 6, 7, 1, 4, 6
Frames: 3   
PA:     5 3 4 1 7 5 3 2 3 6 7 1 4 6
 F1:     5 5 5 1 1 1 3 3 3 3 3 1 1 1
 F2:     - 3 3 3 7 7 7 2 2 2 7 7 7 6
 F3:     - - 4 4 4 5 5 5 5 6 6 6 4 4
PF:  x x x x x x x x - x x x  x x

Page fault(X) = 13
PA is stand for page access
the one that not get count is when the number is duplicated

SO I think of FIFO queue to implement but I Dont really know how to do array like that
Last edited by pludi; 09-27-2011 at 04:36 AM..
 

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LEARN ABOUT DEBIAN

sestatus

sestatus(8)						SELinux command line documentation					       sestatus(8)

NAME

       sestatus - SELinux status tool

SYNOPSIS

       sestatus [-v] [-b]

       This tool is used to get the status of a system running SELinux.

DESCRIPTION

       This manual page describes the sestatus program.

       This tool is used to get the status of a system running SELinux. It displays data about whether SELinux is enabled or disabled, location of
       key directories, and the loaded policy with its status as shown in the example:
	      > sestatus
	      SELinux status:		   enabled
	      SELinuxfs mount:		   /selinux
	      SELinux root directory:	   /etc/selinux
	      Loaded policy name:	   targeted
	      Current mode:		   permissive
	      Mode from config file:	   enforcing
	      Policy MLS status:	   enabled
	      Policy deny_unknown status:  allow
	      Max kernel policy version:   26

       sestatus can also be used to display:

	      -   The security context of files and processes listed in the /etc/sestatus.conf file. The format of this file is described in  ses-
		  tatus.conf(5).

	      -   The status of booleans.

OPTIONS

       -v
	      Displays	the  contexts  of files and processes listed in the /etc/sestatus.conf file. It also checks whether the file is a symbolic
	      link, if so then the context of the target file is also shown.

	      The following contexts will always be displayed:
		     The current process context
		     The init process context
		     The controlling terminal file context

       -b
	      Display the current state of booleans.

FILES

       /etc/sestatus.conf

AUTHOR

       This man page was written by Daniel Walsh <dwalsh@redhat.com>.
       The program was written by Chris PeBenito <pebenito@gentoo.org>

SEE ALSO

       selinux(8), sestatus.conf(5)

Security Enhanced Linux 					    26 Nov 2011 						       sestatus(8)
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