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KaufKauf Slim Linux 1.3 (Default branch)
04-07-2008
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Sys::Statistics::Linux::MemStats(3pm) User Contributed Perl Documentation Sys::Statistics::Linux::MemStats(3pm) NAME
Sys::Statistics::Linux::MemStats - Collect linux memory information. SYNOPSIS
use Sys::Statistics::Linux::MemStats; my $lxs = Sys::Statistics::Linux::MemStats->new; my $stat = $lxs->get; DESCRIPTION
Sys::Statistics::Linux::MemStats gathers memory statistics from the virtual /proc filesystem (procfs). For more information read the documentation of the front-end module Sys::Statistics::Linux. MEMORY INFORMATIONS
Generated by /proc/meminfo. memused - Total size of used memory in kilobytes. memfree - Total size of free memory in kilobytes. memusedper - Total size of used memory in percent. memtotal - Total size of memory in kilobytes. buffers - Total size of buffers used from memory in kilobytes. cached - Total size of cached memory in kilobytes. realfree - Total size of memory is real free (memfree + buffers + cached). realfreeper - Total size of memory is real free in percent of total memory. swapused - Total size of swap space is used is kilobytes. swapfree - Total size of swap space is free in kilobytes. swapusedper - Total size of swap space is used in percent. swaptotal - Total size of swap space in kilobytes. swapcached - Memory that once was swapped out, is swapped back in but still also is in the swapfile. active - Memory that has been used more recently and usually not reclaimed unless absolutely necessary. inactive - Memory which has been less recently used and is more eligible to be reclaimed for other purposes. On earlier kernels (2.4) Inact_dirty + Inact_laundry + Inact_clean. The following statistics are only available by kernels from 2.6. slab - Total size of memory in kilobytes that used by kernel for data structure allocations. dirty - Total size of memory pages in kilobytes that waits to be written back to disk. mapped - Total size of memory in kilbytes that is mapped by devices or libraries with mmap. writeback - Total size of memory that was written back to disk. committed_as - The amount of memory presently allocated on the system. The following statistic is only available by kernels from 2.6.9. commitlimit - Total amount of memory currently available to be allocated on the system. METHODS
new() Call "new()" to create a new object. my $lxs = Sys::Statistics::Linux::MemStats->new; It's possible to set the path to the proc filesystem. Sys::Statistics::Linux::MemStats->new( files => { # This is the default path => '/proc', meminfo => 'meminfo', } ); get() Call "get()" to get the statistics. "get()" returns the statistics as a hash reference. my $stat = $lxs->get; EXPORTS
No exports. SEE ALSO
proc(5) REPORTING BUGS
Please report all bugs to <jschulz.cpan(at)bloonix.de>. AUTHOR
Jonny Schulz <jschulz.cpan(at)bloonix.de>. COPYRIGHT
Copyright (c) 2006, 2007 by Jonny Schulz. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-03-09 Sys::Statistics::Linux::MemStats(3pm)