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一 |     Australian Defense Minister Richard Marles has said that it is unlikely that Canberra would get its first nuclear-powered submarines (SSNs) under the trilateral AUKUS pact by 2030.,“I think that is optimistic in the extreme. I think the truth of where the government left us at the time – the former government, I should say – left us at the time of the election is that, really, they were looking at a new nuclear submarine in the 2040s,” Marles said during an interview with the Australian Broadcasting Corporation (ABC) on Wednesday.,“Now, we will be looking at every option available to try and bring that time forward. I think bringing it forward to eight years from now would be extremely optimistic,” stated Marles.,He underlined that the Defense Department would present its findings on the path that Australia would take in its quest to develop nuclear submarines in March next year.,Canberra is currently in the process of deciding whether it wants to develop its nuclear submarine fleet using British or American technology.,“We do need to firstly understand what capability we will be pursuing, what exactly will be the next nuclear-powered – or the next submarine we will have, the nuclear-powered submarine, when we can get it and what capability arises from that and, therefore, what is the solution to that capability gap,” he said.,The minister blamed the previous Liberal government headed by Scott Morrison for the “inaction” in being able to procure the successor to the Royal Australian Navy’s (RAN) current fleet of diesel-electric Collins-class submarines.,“People need to understand that when the former government came to power in 2013 it was expected that we would have a successor submarine to Collins in the mid-20s, in the next couple of years. Their inaction, their failures, their bungles, effectively opened up a 20-year capability gap,” the Defense Minister said.,AUKUSAussie PM: Australia to Pay French Naval Group Over $580 Million for AUKUS Sub Deal Fallout11 June, 00:50 GMT,The previous Australian government, which lost the federal election in May, scrapped a contract with France’s Naval Group last September, which would have given Canberra advanced diesel-electric submarines by 2030.,Instead, it opted for nuclear subs developed by Australia, the US and the UK under the AUKUS security arrangement which was unveiled last September. As part of AUKUS, the US and the UK are due to supply Australia with advanced technology to domestically develop SSNs.,In the lead-up to the election last month, former Defense Minister Peter Dutton rejected the idea of an interim submarine, arguing it wasn’t “in our national interest to pretend we can have a third class of submarine.”,At the time, he expressed confidence that the current Collins-class fleet would last until 2040.,However, the current Australian government has said that it is “open-minded” as far as closing the “capability gap” in Australia’s frontline submarine fleet is concerned.,AUKUSChina Accuses AUKUS Countries of Inciting Arms Race in South Pacific11 May, 12:49 GMT,China, the perceived target of the AUKUS pact, has accused the US of stoking an “arms race” in the Asia-Pacific through the trilateral arrangement.,Several Southeast Asian nations such as Malaysia and Indonesia have expressed concerns over the AUKUS pact. After a meeting of the Foreign Ministers of Indonesia and Malaysia in Jakarta last October, the two governments warned against an “arms race” in the region.,Kuala Lumpur reiterated its concerns on AUKUS during Foreign Minister Penny Wong’s ongoing visit to the nation.,Marles said that it was “important” that Canberra remained “transparent” in its ongoing military modernization in order to allay concerns around AUKUS.。    

　    一键部署OpenClaw        网站慢，很多时候不是带宽不够，而是数据库查询慢。优化MySQL其实就两件事：加索引和用缓存。    先说索引。没索引的查询就是全表扫描，10万条数据能查出你服务器CPU飙到100%。加了索引，查询速度能提升百倍。

二 |     -- MySQL索引优化示例    -- 查看慢查询（找出需要优化的SQL）    SELECT * FROM mysql.slow_log    WHERE start_time > NOW() - INTERVAL 1 DAY    ORDER BY query_time DESC LIMIT 10;    -- 用EXPLAIN分析查询计划    EXPLAIN SELECT * FROM articles    WHERE category_id = 5 AND status = 1    ORDER BY created_at DESC LIMIT 20;    -- 如果type是ALL（全表扫描），就需要加索引    CREATE INDEX idx_category_status_time    ON articles(category_id, status, created_at);    -- 复合索引遵循最左前缀原则    -- 即：查询条件从左到右依次命中索引    再说缓存。领用最多的场景是Redis缓存。把查询结果存到Redis里，下次查询直接从Redis取，不用查数据库。    # Redis缓存示例（PHP + Redis）    // 先查缓存    $redis = new Redis();    $redis->connect('127.0.0.1', 6379);    $cacheKey = 'article_list_page_' . $page;    $cached = $redis->get($cacheKey);    if ($cached) {    // 缓存命中，直接返回    echo $cached;    } else {    // 缓存未命中，查数据库    $articles = $pdo->query("SELECT * FROM articles ORDER BY id DESC LIMIT 20")->fetchAll();    $html = renderArticles($articles);    // 存入缓存，过期10分钟    $redis->setex($cacheKey, 600, $html);    echo $html;    }    MySQL本身也有查询缓存，在my.cnf里开启就行。但注意，数据更新后缓存不会立即失效，对实时性要求高的场景不适合。    # MySQL查询缓存配置（my.cnf）    query_cache_type = 1    query_cache_size = 64M    query_cache_limit = 2M    # InnoDB缓冲池大小（一般设为内存的70%）    innodb_buffer_pool_size = 2G    innodb_log_file_size = 256M    最后，定期清理数据库碎片和日志。数据量大了，碎片会导致查询变慢。每月跑一次OPTIMIZE TABLE就能解决。

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