a22573bf0b
- WordPress core y plugins - Tema Twenty Twenty-Four configurado - Plugin allow-unfiltered-html.php simplificado - .gitignore configurado para excluir wp-config.php y uploads 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
105 lines
3.4 KiB
PHP
Executable File
105 lines
3.4 KiB
PHP
Executable File
<?php
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/**
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* File: UsageStatistics_Sources_Apc.php
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*
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* @package W3TC
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*/
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namespace W3TC;
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/**
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* Class UsageStatistics_Sources_Apc
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*/
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class UsageStatistics_Sources_Apc {
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/**
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* An array that stores the names of modules.
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*
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* @var array
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*/
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private $module_names = array();
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/**
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* Constructor for initializing the module names from the given server descriptors.
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*
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* This method iterates over the provided `$server_descriptors` array and extracts the 'name'
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* of each module to populate the `$module_names` array. The names are stored to keep track of
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* which modules are associated with the current object instance.
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*
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* @param array $server_descriptors An array of server descriptors, where each descriptor is
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* an associative array containing module details.
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*/
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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[] = $i['name'];
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}
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}
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/**
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* Retrieves a snapshot of the current APCu cache statistics.
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*
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* This method fetches the current cache information using `apcu_cache_info()` and returns
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* a summary of the cache's statistics such as the number of entries, memory size, number of hits,
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* and the total cache accesses (hits + misses).
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*
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* @return array An associative array containing the total 'items', 'size_used', 'get_hits', and 'get_total'.
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*/
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public function get_snapshot() {
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$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'] + $cache['num_misses'] ),
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);
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}
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/**
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* Retrieves a summary of the APCu cache and memory statistics.
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*
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* This method provides a detailed summary of the cache usage, including:
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* - The modules using the cache.
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* - The number of cache entries.
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* - The total memory used and the percentage of memory used.
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* - Cache hit and miss statistics.
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* - The uptime of the cache in seconds.
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* - The number of cache evictions.
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* - Requests per second based on the cache runtime.
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*
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* The method also calculates hit rate percentage and converts memory usage into a more readable format.
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*
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* @return array An associative array containing 'used_by', 'items', 'size_used', 'get_hits', 'get_total',
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* 'runtime_secs', 'evictions', 'size_percent', 'requests_per_second', and 'get_hit_rate'
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*/
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public function get_summary() {
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$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( $mem_used, $mem_avail ),
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);
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if ( 0 !== $sum['runtime_secs'] ) {
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$sum['requests_per_second'] = sprintf( '%.2f', $sum['get_total'] / $sum['runtime_secs'] );
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}
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$sum['get_hit_rate'] = Util_UsageStatistics::percent2( $sum, 'get_hits', 'get_total' );
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return $sum;
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}
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}
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