librenms-librenms/includes/html/graphs/mempool/usage.inc.php

<?php

require 'includes/html/graphs/common.inc.php';

$unit_text = $unit_text ?? '';
$rrd_options .= ' -u 100 -l 0 -E -b 1024 ';

$iter = '1';

$colour = 'CC0000';
$colour_area = 'ffaaaa';

if ($width > '500') {
    $descr_len = 13;
} else {
    $descr_len = 8;
    $descr_len += round(($width - 250) / 8);
}

if ($width > '500') {
    $rrd_options .= " COMMENT:'" . substr(str_pad($unit_text, $descr_len + 5), 0, $descr_len + 5) . "Total      Used      Free(    Min       Max      Ave)'";
    $rrd_options .= " COMMENT:'\l'";
} else {
    $rrd_options .= " COMMENT:'" . substr(str_pad($unit_text, $descr_len + 5), 0, $descr_len + 5) . "Total      Used      Free\l'";
}

$descr = \LibreNMS\Data\Store\Rrd::fixedSafeDescr(short_hrDeviceDescr($mempool['mempool_descr']), $descr_len);

$perc = round($mempool['mempool_perc'], 0);
$background = \LibreNMS\Util\Color::percentage($perc, $mempool['mempool_perc_warn']);

$rrd_options .= " DEF:{$mempool['mempool_id']}used=$rrd_filename:used:AVERAGE";
$rrd_options .= " DEF:{$mempool['mempool_id']}free=$rrd_filename:free:AVERAGE";
$rrd_options .= " CDEF:{$mempool['mempool_id']}size={$mempool['mempool_id']}used,{$mempool['mempool_id']}free,+";
$rrd_options .= " CDEF:{$mempool['mempool_id']}perc={$mempool['mempool_id']}used,{$mempool['mempool_id']}size,/,100,*";
$rrd_options .= " CDEF:{$mempool['mempool_id']}percx=100,{$mempool['mempool_id']}perc,-";
$rrd_options .= " AREA:{$mempool['mempool_id']}perc#" . $background['right'] . ':';

if ($width > '500') {
    $rrd_options .= " LINE1.25:{$mempool['mempool_id']}perc#" . $background['left'] . ":'$descr'";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}size:LAST:%6.2lf%sB";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}used:LAST:%6.2lf%sB";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}free:LAST:%6.2lf%sB";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}free:MIN:%5.2lf%sB";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}free:MAX:%5.2lf%sB";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}free:AVERAGE:%5.2lf%sB\\n";
    $rrd_options .= " COMMENT:'" . substr(str_pad('', $descr_len + 12), 0, $descr_len + 12) . " '";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}perc:LAST:'%5.2lf%%  '";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}percx:LAST:'%5.2lf%% '";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}perc:MIN:'%5.2lf%% '";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}perc:MAX:'%5.2lf%% '";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}perc:AVERAGE:%5.2lf%%\\n";
} else {
    $rrd_options .= " LINE1.25:{$mempool['mempool_id']}perc#" . $background['left'] . ":'$descr'";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}size:LAST:%6.2lf%sB";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}used:LAST:%6.2lf%sB";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}free:LAST:%6.2lf%sB";
    $rrd_options .= " COMMENT:'\l'";
    $rrd_options .= " COMMENT:'" . substr(str_pad('', $descr_len + 12), 0, $descr_len + 12) . " '";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}perc:LAST:'%5.2lf%%  '";
    $rrd_options .= " GPRINT:{$mempool['mempool_id']}percx:LAST:'%5.2lf%% '";
    $rrd_options .= " COMMENT:'\l'";
}//end if