64 lines
1.5 KiB
PHP
64 lines
1.5 KiB
PHP
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<?php
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namespace W3TC;
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class UsageStatistics_Sources_Apc {
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private $module_names = array();
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public function __construct( $server_descriptors ) {
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foreach ( $server_descriptors as $module_key => $i ) {
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$this->module_names[] = $i['name'];
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}
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}
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public function get_snapshot() {
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$cache = apcu_cache_info();
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return array(
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'items' => $cache['num_entries'],
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'size_used' => $cache['mem_size'],
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'get_hits' => $cache['num_hits'],
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'get_total' => ( $cache['num_hits'] + $cache['num_misses'] )
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);
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}
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public function get_summary() {
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$cache = apcu_cache_info();
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$time = time();
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$runtime = $time - $cache['start_time'];
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$mem = apcu_sma_info();
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$mem_size = $mem['num_seg'] * $mem['seg_size'];
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$mem_avail = $mem['avail_mem'];
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$mem_used = $mem_size - $mem_avail;
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$sum = array(
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'used_by' => implode( ',', $this->module_names ),
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'items' => $cache['num_entries'],
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'size_used' => Util_UsageStatistics::bytes_to_size( $cache['mem_size'] ),
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'get_hits' => $cache['num_hits'],
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'get_total' => ( $cache['num_hits'] + $cache['num_misses'] ),
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'runtime_secs' => $runtime,
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'evictions' => $cache['expunges'],
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'size_percent' => Util_UsageStatistics::percent(
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$mem_used, $mem_avail )
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);
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if ( $sum['runtime_secs'] != 0 ) {
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$sum['requests_per_second'] = sprintf( '%.2f',
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$sum['get_total'] / $sum['runtime_secs'] );
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}
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$sum['get_hit_rate'] = Util_UsageStatistics::percent2(
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$sum, 'get_hits', 'get_total' );
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return $sum;
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}
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}
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