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