wpdev
d3b72bd1af
- Benchmark 7 scenarios at 100k vendors / 1M listings with SQL shaped like WP_Query, TMDO_Query_Router and TMDO_Post_Query_Router - Native meta_query takes 14-17s; flat tables bring searches to 0.3-0.6s - Hot table lacks an hp_vendor index (3.4s); entity lacks composite indexes Verify: TMDO_TEST_DB_NAME=wp_wpdo_bench php tests/bench/run.php --iterations=20 PR: PR-005
250 lines
11 KiB
PHP
250 lines
11 KiB
PHP
<?php
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/**
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* Scale benchmark: native postmeta vs hot table vs entity table.
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*
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* Runs against the dataset from tests/bench/seed.php:
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* TMDO_TEST_DB_NAME=wp_wpdo_bench php tests/bench/run.php [--iterations=20] [--seed=7]
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*
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* SQL mirrors what the code under test emits: WP_Query meta_query (INNER JOIN
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* per clause, CAST for numerics, SQL_CALC_FOUND_ROWS + FOUND_ROWS()),
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* TMDO_Query_Router (hot) and TMDO_Post_Query_Router (entity, %s-quoted values).
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* Writes run inside a transaction that is rolled back, so the dataset never changes.
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*
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* Output: a Markdown table on stdout (p50 / p95 / max in ms, result rows, index used).
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*
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* @package TMDO\Tests\Bench
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*/
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declare(strict_types=1);
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if ( 'cli' !== PHP_SAPI ) {
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exit( 1 );
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}
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require_once __DIR__ . '/class-tmdo-bench-seeder.php';
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const P = 'wp_itest_';
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$opts = getopt( '', array( 'iterations::', 'seed::' ) );
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$iterations = max( 1, (int) ( $opts['iterations'] ?? 20 ) );
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$warmup = 3;
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$db_name = (string) getenv( 'TMDO_TEST_DB_NAME' );
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try {
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TMDO_Bench_Seeder::assert_bench_db( $db_name );
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} catch ( InvalidArgumentException $e ) {
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fwrite( STDERR, $e->getMessage() . PHP_EOL );
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exit( 2 );
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}
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$db = new mysqli(
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getenv( 'TMDO_TEST_DB_HOST' ) ?: '127.0.0.1',
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getenv( 'TMDO_TEST_DB_USER' ) ?: 'dbo',
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(string) getenv( 'TMDO_TEST_DB_PASS' ),
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$db_name
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);
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$db->set_charset( 'utf8mb4' );
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$db->query( 'SET SESSION max_statement_time = 30' ); // MariaDB: cap runaway native queries.
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$vendors = (int) $db->query( 'SELECT COUNT(*) FROM `' . P . "posts` WHERE post_type = 'hp_vendor'" )->fetch_row()[0];
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$listings = (int) $db->query( 'SELECT COUNT(*) FROM `' . P . "posts` WHERE post_type = 'hp_listing'" )->fetch_row()[0];
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if ( 0 === $vendors || 0 === $listings ) {
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fwrite( STDERR, "No bench data — run tests/bench/seed.php first.\n" );
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exit( 3 );
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}
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mt_srand( (int) ( $opts['seed'] ?? 7 ) );
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// ── SQL builders ──────────────────────────────────────────────────────────
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/** WP_Query shape with one INNER JOIN per meta clause. */
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function native_search( array $meta_where ): string {
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$joins = '';
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$where = array();
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foreach ( $meta_where as $n => $cond ) {
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$alias = 0 === $n ? P . 'postmeta' : "mt{$n}";
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$joins .= ' INNER JOIN `' . P . 'postmeta`' . ( 0 === $n ? '' : " AS {$alias}" ) . " ON ( p.ID = {$alias}.post_id )";
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$where[] = '( ' . sprintf( $cond, $alias ) . ' )';
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}
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return 'SELECT SQL_CALC_FOUND_ROWS p.ID FROM `' . P . "posts` p{$joins} WHERE 1=1 AND ( " . implode( ' AND ', $where )
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. " ) AND p.post_type = 'hp_listing' AND ((p.post_status = 'publish')) GROUP BY p.ID ORDER BY p.post_date DESC LIMIT 0, 20";
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}
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/** TMDO router shape: one LEFT JOIN to a flat table plus flat WHERE clauses. */
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function flat_search( string $table, string $alias, string $conditions ): string {
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return 'SELECT SQL_CALC_FOUND_ROWS p.ID FROM `' . P . "posts` p LEFT JOIN `" . P . "{$table}` AS `{$alias}` ON (p.ID = `{$alias}`.`post_id`)"
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. " WHERE 1=1 AND p.post_type = 'hp_listing' AND ((p.post_status = 'publish')){$conditions} GROUP BY p.ID ORDER BY p.post_date DESC LIMIT 0, 20";
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}
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function random_ids( int $count, int $offset, int $max ): string {
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$ids = array();
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for ( $i = 0; $i < $count; $i++ ) {
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$ids[] = $offset + mt_rand( 1, $max );
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}
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return implode( ',', $ids );
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}
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// ── Scenarios: label => [ variant => fn(): string[] (statements) ] ─────────
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$price = static function (): array {
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$lo = mt_rand( 100, 80000 );
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return array( $lo, $lo + 20000 ); // ~20% of the 100..100000 range.
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};
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$scenarios = array(
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'1. 價格區間搜尋（約 20%）' => array(
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'native' => function () use ( $price ) {
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[ $lo, $hi ] = $price();
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return array( native_search( array( "%1\$s.meta_key = 'hp_price' AND CAST(%1\$s.meta_value AS DECIMAL(10,2)) BETWEEN '{$lo}' AND '{$hi}'" ) ), 'SELECT FOUND_ROWS()' );
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},
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'hot' => function () use ( $price ) {
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[ $lo, $hi ] = $price();
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return array( flat_search( 'wpdo_hot_hp_listing', 'h', " AND `h`.`hp_price` BETWEEN {$lo} AND {$hi}" ), 'SELECT FOUND_ROWS()' );
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},
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'entity' => function () use ( $price ) {
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[ $lo, $hi ] = $price();
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return array( flat_search( 'wpdo_post_hp_listing_core', 'e', " AND `e`.`hp_price` BETWEEN '{$lo}' AND '{$hi}'" ), 'SELECT FOUND_ROWS()' );
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},
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),
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'2. 價格區間 + verified=1' => array(
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'native' => function () use ( $price ) {
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[ $lo, $hi ] = $price();
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return array(
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native_search(
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array(
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"%1\$s.meta_key = 'hp_price' AND CAST(%1\$s.meta_value AS DECIMAL(10,2)) BETWEEN '{$lo}' AND '{$hi}'",
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"%1\$s.meta_key = 'hp_verified' AND %1\$s.meta_value = '1'",
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)
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),
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'SELECT FOUND_ROWS()',
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);
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},
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'hot' => function () use ( $price ) {
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[ $lo, $hi ] = $price();
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return array( flat_search( 'wpdo_hot_hp_listing', 'h', " AND `h`.`hp_price` BETWEEN {$lo} AND {$hi} AND `h`.`hp_verified` = 1" ), 'SELECT FOUND_ROWS()' );
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},
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'entity' => function () use ( $price ) {
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[ $lo, $hi ] = $price();
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return array( flat_search( 'wpdo_post_hp_listing_core', 'e', " AND `e`.`hp_price` BETWEEN '{$lo}' AND '{$hi}' AND `e`.`hp_verified` = '1'" ), 'SELECT FOUND_ROWS()' );
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},
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),
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'3. 某 vendor 名下 listing' => array(
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'post_parent' => fn() => array( 'SELECT SQL_CALC_FOUND_ROWS p.ID FROM `' . P . "posts` p WHERE p.post_parent = " . mt_rand( 1, $vendors ) . " AND p.post_type = 'hp_listing' AND ((p.post_status = 'publish')) ORDER BY p.post_date DESC LIMIT 0, 20", 'SELECT FOUND_ROWS()' ),
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'native' => fn() => array( native_search( array( "%1\$s.meta_key = 'hp_vendor' AND %1\$s.meta_value = '" . mt_rand( 1, $vendors ) . "'" ) ), 'SELECT FOUND_ROWS()' ),
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'hot' => fn() => array( flat_search( 'wpdo_hot_hp_listing', 'h', ' AND `h`.`hp_vendor` = ' . mt_rand( 1, $vendors ) ), 'SELECT FOUND_ROWS()' ),
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'entity' => fn() => array( flat_search( 'wpdo_post_hp_listing_core', 'e', " AND `e`.`hp_vendor` = '" . mt_rand( 1, $vendors ) . "'" ), 'SELECT FOUND_ROWS()' ),
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),
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'4. 單筆 listing 讀全部 meta' => array(
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'native' => fn() => array( 'SELECT post_id, meta_key, meta_value FROM `' . P . 'postmeta` WHERE post_id IN (' . random_ids( 1, $vendors, $listings ) . ') ORDER BY meta_id ASC' ),
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'hot' => fn() => array( 'SELECT * FROM `' . P . 'wpdo_hot_hp_listing` WHERE post_id = ' . random_ids( 1, $vendors, $listings ) ),
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'entity' => fn() => array( 'SELECT * FROM `' . P . 'wpdo_post_hp_listing_core` WHERE post_id = ' . random_ids( 1, $vendors, $listings ) ),
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),
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'5. 列表頁預載 20 筆 meta' => array(
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'native' => fn() => array( 'SELECT post_id, meta_key, meta_value FROM `' . P . 'postmeta` WHERE post_id IN (' . random_ids( 20, $vendors, $listings ) . ') ORDER BY meta_id ASC' ),
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'hot' => fn() => array( 'SELECT * FROM `' . P . 'wpdo_hot_hp_listing` WHERE post_id IN (' . random_ids( 20, $vendors, $listings ) . ')' ),
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'entity' => fn() => array( 'SELECT * FROM `' . P . 'wpdo_post_hp_listing_core` WHERE post_id IN (' . random_ids( 20, $vendors, $listings ) . ')' ),
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),
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'6. 單一 vendor 讀使用者 meta' => array(
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'native' => fn() => array( 'SELECT user_id, meta_key, meta_value FROM `' . P . 'usermeta` WHERE user_id IN (' . mt_rand( 1, $vendors ) . ') ORDER BY umeta_id ASC' ),
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'entity' => fn() => array( 'SELECT * FROM `' . P . 'wpdo_user_hp_user` WHERE user_id = ' . mt_rand( 1, $vendors ) ),
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),
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'7. 寫入：更新一筆 listing 價格' => array(
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'native' => fn() => array( 'UPDATE `' . P . "postmeta` SET meta_value = '" . mt_rand( 100, 100000 ) . ".00' WHERE post_id = " . random_ids( 1, $vendors, $listings ) . " AND meta_key = 'hp_price'" ),
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'entity' => fn() => array( 'UPDATE `' . P . "wpdo_post_hp_listing_core` SET hp_price = '" . mt_rand( 100, 100000 ) . "' WHERE post_id = " . random_ids( 1, $vendors, $listings ) ),
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'dual_write' => function () use ( $vendors, $listings ) {
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$id = random_ids( 1, $vendors, $listings );
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$v = mt_rand( 100, 100000 );
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return array(
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'UPDATE `' . P . "postmeta` SET meta_value = '{$v}.00' WHERE post_id = {$id} AND meta_key = 'hp_price'",
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'UPDATE `' . P . "wpdo_post_hp_listing_core` SET hp_price = '{$v}' WHERE post_id = {$id}",
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);
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},
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),
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);
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// ── Run ───────────────────────────────────────────────────────────────────
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/**
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* @return array{ms: float, rows: int|string, timeout: bool}
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*/
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function run_statements( mysqli $db, array $statements ): array {
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$is_write = str_starts_with( $statements[0], 'UPDATE' );
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if ( $is_write ) {
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$db->begin_transaction();
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}
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$rows = 0;
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$timeout = false;
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$start = hrtime( true );
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foreach ( $statements as $n => $sql ) {
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try {
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$res = $db->query( $sql );
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} catch ( mysqli_sql_exception $e ) {
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if ( 1969 !== $e->getCode() ) { // ER_STATEMENT_TIMEOUT.
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throw $e;
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}
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$timeout = true;
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break;
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}
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if ( $res instanceof mysqli_result ) {
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$rows = str_starts_with( $sql, 'SELECT FOUND_ROWS' ) ? (int) $res->fetch_row()[0] : ( 0 === $n ? $res->num_rows : $rows );
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$res->free();
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} elseif ( $is_write ) {
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$rows = $db->affected_rows;
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}
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}
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$ms = ( hrtime( true ) - $start ) / 1e6;
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if ( $is_write ) {
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$db->rollback();
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}
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return array( 'ms' => $ms, 'rows' => $rows, 'timeout' => $timeout );
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}
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function explain_keys( mysqli $db, string $sql ): string {
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if ( ! str_starts_with( $sql, 'SELECT' ) ) {
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return '—';
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}
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$keys = array();
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$res = $db->query( 'EXPLAIN ' . $sql );
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while ( $row = $res->fetch_assoc() ) {
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$keys[] = $row['table'] . ':' . ( $row['key'] ?? 'ALL' );
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}
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return implode( ', ', $keys );
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}
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function percentile( array $sorted, float $p ): float {
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return $sorted[ (int) min( count( $sorted ) - 1, floor( $p * count( $sorted ) ) ) ];
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}
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printf( "Dataset: %d vendors, %d listings — %d iterations (+%d warm-up) per variant\n\n", $vendors, $listings, $iterations, $warmup );
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echo "| 情境 | 形式 | p50 ms | p95 ms | max ms | 結果筆數(中位) | 使用索引 |\n|---|---|---:|---:|---:|---:|---|\n";
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foreach ( $scenarios as $label => $variants ) {
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foreach ( $variants as $variant => $build ) {
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$times = array();
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$rows = array();
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$timeouts = 0;
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$keys = explain_keys( $db, $build()[0] );
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for ( $i = 0; $i < $warmup + $iterations; $i++ ) {
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$r = run_statements( $db, $build() );
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if ( $i < $warmup ) {
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continue;
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}
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$timeouts += (int) $r['timeout'];
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$times[] = $r['ms'];
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$rows[] = $r['rows'];
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}
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sort( $times );
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sort( $rows );
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printf(
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"| %s | %s | %.2f | %.2f | %.2f | %s | %s |\n",
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$label,
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$variant . ( $timeouts ? " ⚠ {$timeouts}× timeout" : '' ),
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percentile( $times, 0.5 ),
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percentile( $times, 0.95 ),
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end( $times ),
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$rows[ intdiv( count( $rows ), 2 ) ],
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$keys
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);
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}
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}
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