librenms-librenms/includes/polling/mempools/patton-sn.inc.php

<?php

$oid = $mempool['mempool_index'];

d_echo('Patton SN Mempool');

if (! is_array($mempool_cache['patton-sn'])) {
    d_echo('caching');

    $mempool_cache['patton-sn'] = [];
    $mempool_cache['patton-sn'] = snmpwalk_cache_multi_oid($device, 'memAllocatedBytes', $mempool_cache['patton-sn'], 'SMARTNODE-MIB', 'patton');
    $mempool_cache['patton-sn'] = snmpwalk_cache_multi_oid($device, 'memFreeBytes', $mempool_cache['patton-sn'], 'SMARTNODE-MIB', 'patton');
    d_echo($mempool_cache);
}

$entry = $mempool_cache['patton-sn'][$mempool['mempool_index']];

if ($entry['hwEntityMemSize'] < 0) {
    $entry['hwEntityMemSize'] = ($entry['hwEntityMemSize'] * -1);
}

$mempool['total'] = $entry['memAllocatedBytes'] + $entry['memFreeBytes'];
$mempool['used'] = $entry['memAllocatedBytes'];
$mempool['free'] = $entry['memFreeBytes'];
$perc = $entry['used'] / $entry['total'] * 100;

d_echo($mempool);