laipower/wp-content/plugins/w3-total-cache/UsageStatistics_Sources_Memcached.php

105 lines
2.6 KiB
PHP

<?php
namespace W3TC;
class UsageStatistics_Sources_Memcached {
private $servers;
public function __construct( $server_descriptors ) {
$this->servers = array();
foreach ( $server_descriptors as $i ) {
foreach ( $i['servers'] as $host_port ) {
if ( !isset( $this->servers[$host_port] ) )
$this->servers[$host_port] = array(
'username' => $i['username'],
'password' => $i['password'],
'module_names' => array( $i['name'] )
);
else
$this->servers[$host_port]['module_names'][] = $i['name'];
}
}
}
public function get_snapshot() {
$size_used = 0;
$get_calls = 0;
$get_hits = 0;
foreach ( $this->servers as $host_port => $i ) {
$cache = Cache::instance( 'memcached',
array(
'servers' => array( $host_port ),
'username' => $i['username'],
'password' => $i['password']
) );
$stats = $cache->get_statistics();
$size_used += Util_UsageStatistics::v( $stats, 'bytes' );
$get_calls += Util_UsageStatistics::v( $stats, 'cmd_get' );
$get_hits += Util_UsageStatistics::v( $stats, 'get_hits' );
}
return array(
'size_used' => $size_used,
'get_calls' => $get_calls,
'get_hits' => $get_hits
);
}
public function get_summary() {
$sum = array(
'module_names' => array(),
'size_used' => 0,
'size_maxbytes' => 0,
'get_total' => 0,
'get_hits' => 0,
'evictions' => 0,
'uptime' => 0
);
foreach ( $this->servers as $host_port => $i ) {
$cache = Cache::instance( 'memcached',
array(
'servers' => array( $host_port ),
'username' => $i['username'],
'password' => $i['password']
) );
$stats = $cache->get_statistics();
$sum['module_names'] =
array_merge( $sum['module_names'], $i['module_names'] );
$sum['size_used'] += Util_UsageStatistics::v3( $stats, 'bytes');
$sum['size_maxbytes'] += Util_UsageStatistics::v3( $stats, 'limit_maxbytes' );
$sum['get_total'] += Util_UsageStatistics::v3( $stats, 'cmd_get' );
$sum['get_hits'] += Util_UsageStatistics::v3( $stats, 'get_hits' );
$sum['evictions'] += Util_UsageStatistics::v3( $stats, 'evictions' );
$sum['uptime'] += Util_UsageStatistics::v3( $stats, 'uptime' );
}
$summary = array(
'module_names' => implode( ',', $sum['module_names'] ),
'size_percent' => Util_UsageStatistics::percent2(
$sum, 'size_used', 'size_maxbytes' ),
'size_used' => Util_UsageStatistics::bytes_to_size2(
$sum, 'size_used' ),
'get_hit_rate' => Util_UsageStatistics::percent2(
$sum, 'get_hits', 'get_total' ),
'evictions_per_second' => Util_UsageStatistics::value_per_second(
$sum, 'evictions', 'uptime' )
);
return $summary;
}
}