133 lines
3.5 KiB
PHP
133 lines
3.5 KiB
PHP
<?php
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/**
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* Parallel Executor Class
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*
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* Executes search queries in parallel (concurrent requests) to simulate
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* multiple simultaneous users searching the site.
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*
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* @package MaplePress_SearchSpeedTest
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*/
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class MPSS_Parallel_Executor {
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/**
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* Execute queries in parallel batches.
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*
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* @param array $queries Array of search query strings.
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* @param int $concurrency Number of concurrent requests per batch.
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* @return array Results array with timing and metadata.
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*/
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public function execute( $queries, $concurrency = 5 ) {
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$results = array();
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// Split queries into batches based on concurrency
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$batches = array_chunk( $queries, $concurrency );
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foreach ( $batches as $batch ) {
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$batch_results = $this->execute_batch( $batch );
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$results = array_merge( $results, $batch_results );
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// Small delay between batches to prevent server overload
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usleep( 50000 ); // 50ms
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}
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return $results;
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}
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/**
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* Execute a batch of queries concurrently using cURL multi-handle.
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*
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* @param array $queries Array of query strings for this batch.
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* @return array Results for this batch.
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*/
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private function execute_batch( $queries ) {
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$results = array();
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// Prepare requests
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$requests = array();
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foreach ( $queries as $query ) {
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$search_url = add_query_arg( 's', urlencode( $query ), home_url( '/' ) );
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$requests[] = array(
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'url' => $search_url,
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'query' => $query,
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);
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}
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// Execute in parallel
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$parallel_results = $this->execute_parallel_requests( $requests );
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return $parallel_results;
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}
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/**
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* Execute multiple HTTP requests in parallel using cURL multi-handle.
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*
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* @param array $requests Array of request data (url, query).
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* @return array Results array.
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*/
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private function execute_parallel_requests( $requests ) {
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$results = array();
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$mh = curl_multi_init();
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$curl_handles = array();
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// Add all requests to multi-handle
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foreach ( $requests as $index => $request ) {
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$ch = curl_init();
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curl_setopt( $ch, CURLOPT_URL, $request['url'] );
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curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
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curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
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curl_setopt( $ch, CURLOPT_TIMEOUT, 30 );
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curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false ); // For local testing
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curl_setopt( $ch, CURLOPT_SSL_VERIFYHOST, false ); // For local testing
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// Add custom headers to identify test traffic (optional)
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curl_setopt(
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$ch,
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CURLOPT_HTTPHEADER,
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array(
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'X-Speed-Test: MaplePress',
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)
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);
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curl_multi_add_handle( $mh, $ch );
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$curl_handles[ (int) $ch ] = array(
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'handle' => $ch,
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'query' => $request['query'],
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'start' => microtime( true ),
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);
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}
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// Execute all requests
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$running = null;
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do {
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curl_multi_exec( $mh, $running );
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curl_multi_select( $mh );
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} while ( $running > 0 );
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// Collect results
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foreach ( $curl_handles as $data ) {
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$info = curl_getinfo( $data['handle'] );
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// Use cURL's total_time which accurately measures the individual request time
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// NOT the time from batch start to collection (which would be incorrect)
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$duration_ms = round( $info['total_time'] * 1000, 2 );
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$results[] = array(
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'query' => $data['query'],
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'duration_ms' => $duration_ms,
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'http_code' => $info['http_code'],
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'timestamp' => $data['start'],
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'success' => $info['http_code'] === 200,
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);
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curl_multi_remove_handle( $mh, $data['handle'] );
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curl_close( $data['handle'] );
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}
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curl_multi_close( $mh );
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return $results;
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}
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}
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