/usr/share/phoronix-test-suite/pts-core/objects/phodevi/sensors/memory_usage.php is in phoronix-test-suite 4.8.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 | <?php
/*
Phoronix Test Suite
URLs: http://www.phoronix.com, http://www.phoronix-test-suite.com/
Copyright (C) 2009 - 2013, Phoronix Media
Copyright (C) 2009 - 2013, Michael Larabel
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class memory_usage implements phodevi_sensor
{
private static $page_size = -1;
public static function get_type()
{
return 'memory';
}
public static function get_sensor()
{
return 'usage';
}
public static function get_unit()
{
return 'Megabytes';
}
public static function support_check()
{
$test = self::read_sensor();
return is_numeric($test) && $test != -1;
}
public static function read_sensor()
{
return memory_usage::mem_usage('MEMORY', 'USED');
}
public static function mem_usage($TYPE = 'TOTAL', $READ = 'USED')
{
// Reads system memory usage
$mem_usage = -1;
if(pts_client::executable_in_path('free') != false)
{
$mem = explode("\n", shell_exec('free -t -m 2>&1'));
$grab_line = null;
$buffers_and_cache = 0;
for($i = 0; $i < count($mem); $i++)
{
$line_parts = pts_strings::colon_explode($mem[$i]);
if(count($line_parts) == 2)
{
$line_type = $line_parts[0];
if($TYPE == 'MEMORY' && $line_type == 'Mem')
{
$grab_line = $line_parts[1];
}
else if($TYPE == 'SWAP' && $line_type == 'Swap')
{
$grab_line = $line_parts[1];
}
else if($TYPE == 'TOTAL' && $line_type == 'Total')
{
$grab_line = $line_parts[1];
}
else if($line_type == '-/+ buffers/cache' && $TYPE != 'SWAP')
{
$buffers_and_cache = pts_arrays::first_element(explode(' ', pts_strings::trim_spaces($line_parts[1])));
}
}
}
if(!empty($grab_line))
{
$grab_line = pts_strings::trim_spaces($grab_line);
$mem_parts = explode(' ', $grab_line);
if($READ == 'USED')
{
if(count($mem_parts) >= 2 && is_numeric($mem_parts[1]))
{
$mem_usage = $mem_parts[1] - $buffers_and_cache;
}
}
else if($READ == 'TOTAL')
{
if(count($mem_parts) >= 1 && is_numeric($mem_parts[0]))
{
$mem_usage = $mem_parts[0];
}
}
else if($READ == 'FREE')
{
if(count($mem_parts) >= 3 && is_numeric($mem_parts[2]))
{
$mem_usage = $mem_parts[2];
}
}
}
}
else if(pts_client::executable_in_path('vm_stat') != false)
{
$vmstats = explode("\n", shell_exec('vm_stat 2>&1'));
$grab_line = null;
// buffers_and_cache
foreach($vmstats as $vmstat_line)
{
$line_parts = pts_strings::colon_explode($vmstat_line);
if(self::$page_size == -1)
{
strtok($vmstat_line, ':');
$tok = strtok(' ');
while(self::$page_size == -1)
{
if(is_numeric($tok))
{
self::$page_size = $tok;
}
else
{
$tok = strtok(' ');
}
}
continue;
}
//$line_parts[1] = pts_strings::trim_spaces($line_parts[1]);
$line_type = strtok($vmstat_line, ':');
$line_value = strtok(' .');
if($TYPE == 'MEMORY')
{
if($line_type == 'Pages active' && $READ == 'USED')
{
$mem_usage = $line_value / (1048576 / self::$page_size);
break;
}
if($line_type == 'Pages free' && $READ == 'FREE')
{
$mem_usage = $line_value / (1048576 / self::$page_size);
break;
}
}
}
$mem_usage = pts_math::set_precision($mem_usage);
}
return $mem_usage;
}
}
?>
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