[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"site-config":3,"primary-menu":20,"tags-cloud":109,"tagposts-os-1":293},{"config":4,"socialLinks":19},{"title":5,"subtitle":6,"logoUrl":7,"faviconUrl":8,"footerText":9,"beianIcp":10,"beianPublicSecurity":9,"seoDescription":11,"seoKeywords":12,"homepageTitle":13,"homepageSubtitle":14,"analyticsHeadCode":15,"planetQrcodeUrl":16,"planetIntroHtml":9,"planetCtaText":17,"updatedAt":18},"编码世界","用编码改变世界","https:\u002F\u002Fcdn.mashangan.com\u002Fupload\u002F2026\u002F09\u002F2f277021172f43f6bb34e1c115760b7f.png","https:\u002F\u002Fcdn.mashangan.com\u002Fupload\u002F2026\u002F09\u002Fdcbad022e68c4a729a5dc4997a9bba8a.png","","苏ICP备2026073884号","编码世界（mashangan.com）是面向 Java 后端与 Go 语言的系统化编程教程站：提供\nMyBatis Plus、Lombok、Java 8、IDEA、Docker 等原创图文教程，以及 JVM、并发、\nSpring、MySQL、Redis、消息队列、计算机网络等大厂面试八股题库，另有可落地的\n项目实战系列，帮你从入门到精通。","编码世界,Java教程,Go语言教程,Docker教程,MyBatis Plus教程,Lombok教程, Java 8新特性,IDEA教程,Java面试题,八股文,JVM面试题,Java并发面试题, MySQL面试题,Redis面试题,Spring面试题,消息队列面试题,高并发,分库分表, Netty面试题,计算机网络面试题,AI Agent,RAG,程序员学习路线","Java全栈系统化编程教程","覆盖 MyBatis Plus、Lombok、Java 8、IDEA、Go、Docker 等原创图文教程，配套大厂面试八股题库，从入门到精通，持续更新","\u003Cscript>\nvar _hmt = _hmt || [];\n(function() {\n  var hm = document.createElement(\"script\");\n  hm.src = \"https:\u002F\u002Fhm.baidu.com\u002Fhm.js?f00af7e56d956c02e11efed4131379b0\";\n  var s = document.getElementsByTagName(\"script\")[0]; \n  s.parentNode.insertBefore(hm, s);\n})();\n\u003C\u002Fscript>\n","https:\u002F\u002Fcdn.mashangan.com\u002Fupload\u002F2026\u002F09\u002Fc1a8f5de46584d3eb0bc762c180a5db9.png","扫码加入知识星球","2026-10-05T13:09:51.904487Z",[],{"metadata":21,"spec":24,"menuItems":35},{"name":22,"creationTimestamp":23},"primary","2026-09-12T06:13:55.024154Z",{"displayName":25,"menuItems":26},"主菜单",[27,28,29,30,31,32,33,34],"88c3f10b-321c-4092-86a8-70db00251b74","menu-item-izrtmxer","c4c814d1-0c2c-456b-8c96-4864965fee94","menu-item-tags","menu-item-column","menu-item-tools","menu-item-zsxq","menu-item-ocrxlczu",[36,45,55,64,73,82,91,100],{"displayName":37,"metadata":38,"spec":40,"status":43,"children":44},"首页",{"name":27,"creationTimestamp":39},"2026-09-12T06:13:54.422830Z",{"displayName":37,"href":41,"priority":42,"menuName":22},"\u002F",0,{"displayName":37,"href":41},[],{"displayName":46,"metadata":47,"spec":49,"status":53,"children":54},"Java面试八股",{"name":28,"creationTimestamp":48},"2026-09-13T09:42:02.854891Z",{"displayName":46,"href":50,"target":51,"priority":52,"menuName":22},"\u002Fjava-interview","_self",1,{"displayName":46,"href":50},[],{"displayName":56,"metadata":57,"spec":59,"status":62,"children":63},"文章",{"name":29,"creationTimestamp":58},"2026-09-12T06:13:54.457307Z",{"displayName":56,"href":60,"priority":61,"menuName":22},"\u002Farchives",2,{"displayName":56,"href":60},[],{"displayName":65,"metadata":66,"spec":68,"status":71,"children":72},"标签",{"name":30,"creationTimestamp":67},"2026-10-07T00:42:42.754151Z",{"displayName":65,"href":69,"priority":70,"menuName":22},"\u002Ftags",3,{"displayName":65,"href":69},[],{"displayName":74,"metadata":75,"spec":77,"status":80,"children":81},"项目实战",{"name":31,"creationTimestamp":76},"2026-09-14T00:35:08.138170Z",{"displayName":74,"href":78,"target":51,"priority":79,"menuName":22},"\u002Fcolumn",4,{"displayName":74,"href":78},[],{"displayName":83,"metadata":84,"spec":86,"status":89,"children":90},"在线工具",{"name":32,"creationTimestamp":85},"2026-09-14T00:35:08.171474Z",{"displayName":83,"href":87,"target":51,"priority":88,"menuName":22},"\u002Ftools",5,{"displayName":83,"href":87},[],{"displayName":92,"metadata":93,"spec":95,"status":98,"children":99},"知识星球",{"name":33,"creationTimestamp":94},"2026-09-14T00:35:08.199145Z",{"displayName":92,"href":96,"target":51,"priority":97,"menuName":22},"\u002Fzsxq",6,{"displayName":92,"href":96},[],{"displayName":101,"metadata":102,"spec":104,"status":107,"children":108},"特价云服务",{"name":34,"creationTimestamp":103},"2026-09-25T15:30:59.201614Z",{"displayName":101,"href":105,"target":51,"priority":106,"menuName":22},"\u002Fserver",7,{"displayName":101,"href":105},[],[110,117,124,131,138,145,152,159,166,172,178,184,191,197,203,209,215,221,227,233,239,245,251,257,263,269,275,281,287],{"metadata":111,"spec":113,"postCount":116},{"name":112},"tag-04980744",{"displayName":114,"slug":115},"面试题","interview",118,{"metadata":118,"spec":120,"postCount":123},{"name":119},"tag-93f725a0",{"displayName":121,"slug":122},"Java","java",68,{"metadata":125,"spec":127,"postCount":130},{"name":126},"tag-05b6053c",{"displayName":128,"slug":129},"Docker","docker",43,{"metadata":132,"spec":134,"postCount":137},{"name":133},"tag-1cba77c3",{"displayName":135,"slug":136},"IDEA","idea",32,{"metadata":139,"spec":141,"postCount":144},{"name":140},"tag-116a0109",{"displayName":142,"slug":143},"数字孪生","digital-twin",19,{"metadata":146,"spec":148,"postCount":151},{"name":147},"tag-a2fb95ac",{"displayName":149,"slug":150},"MyBatis Plus","mybatis-plus",18,{"metadata":153,"spec":155,"postCount":158},{"name":154},"tag-cc6220f9",{"displayName":156,"slug":157},"Lombok","lombok",15,{"metadata":160,"spec":162,"postCount":165},{"name":161},"tag-2a2d595e",{"displayName":163,"slug":164},"Spring","spring",10,{"metadata":167,"spec":169,"postCount":165},{"name":168},"tag-1d8a4975",{"displayName":170,"slug":171},"消息队列","mq",{"metadata":173,"spec":175,"postCount":165},{"name":174},"tag-17245299",{"displayName":176,"slug":177},"并发","concurrency",{"metadata":179,"spec":181,"postCount":165},{"name":180},"tag-4921c0e2",{"displayName":182,"slug":183},"AI","ai",{"metadata":185,"spec":187,"postCount":190},{"name":186},"tag-53bb7900",{"displayName":188,"slug":189},"卫星仿真","satellite",9,{"metadata":192,"spec":194,"postCount":88},{"name":193},"tag-62377bcf",{"displayName":195,"slug":196},"Spring Cloud","spring-cloud",{"metadata":198,"spec":200,"postCount":88},{"name":199},"tag-81c3b080",{"displayName":201,"slug":202},"MySQL","mysql",{"metadata":204,"spec":206,"postCount":88},{"name":205},"tag-86a1b907",{"displayName":207,"slug":208},"Redis","redis",{"metadata":210,"spec":212,"postCount":88},{"name":211},"tag-18897dcf",{"displayName":213,"slug":214},"Elasticsearch","elasticsearch",{"metadata":216,"spec":218,"postCount":88},{"name":217},"tag-6ce80d8e",{"displayName":219,"slug":220},"JVM","jvm",{"metadata":222,"spec":224,"postCount":88},{"name":223},"tag-aa4e1b8c",{"displayName":225,"slug":226},"Dubbo","dubbo",{"metadata":228,"spec":230,"postCount":88},{"name":229},"tag-9e30c249",{"displayName":231,"slug":232},"Netty","netty",{"metadata":234,"spec":236,"postCount":88},{"name":235},"tag-2199ace5",{"displayName":237,"slug":238},"ZooKeeper","zookeeper",{"metadata":240,"spec":242,"postCount":88},{"name":241},"tag-7c298a76",{"displayName":243,"slug":244},"设计模式","design-pattern",{"metadata":246,"spec":248,"postCount":88},{"name":247},"tag-6cf6cea9",{"displayName":249,"slug":250},"高可用","high-availability",{"metadata":252,"spec":254,"postCount":88},{"name":253},"tag-918786ab",{"displayName":255,"slug":256},"分库分表","sharding",{"metadata":258,"spec":260,"postCount":88},{"name":259},"tag-91e02cd2",{"displayName":261,"slug":262},"计算机网络","network",{"metadata":264,"spec":266,"postCount":88},{"name":265},"tag-dd302f94",{"displayName":267,"slug":268},"操作系统","os",{"metadata":270,"spec":272,"postCount":88},{"name":271},"tag-1b359d87",{"displayName":273,"slug":274},"Tomcat","tomcat",{"metadata":276,"spec":278,"postCount":79},{"name":277},"tag-f0d71b77",{"displayName":279,"slug":280},"MyBatis","mybatis",{"metadata":282,"spec":284,"postCount":52},{"name":283},"tag-a118a308",{"displayName":285,"slug":286},"时序数据库","tsdb",{"metadata":288,"spec":290,"postCount":42},{"name":289},"tag-34d1f91f",{"displayName":291,"slug":292},"Go","go",{"page":52,"size":294,"total":88,"items":295,"first":304,"last":304,"hasNext":308,"hasPrevious":308,"totalPages":52},20,[296,335,364,393,422],{"metadata":297,"spec":300,"status":310,"categories":315,"tags":328},{"name":298,"creationTimestamp":299},"post-os-io-multiplexing-5e8493ea","2026-09-13T10:01:07.249312Z",{"title":301,"slug":302,"cover":9,"excerpt":303,"publishTime":305,"categories":306,"tags":307,"priority":42,"pinned":308,"deleted":308,"visible":309,"allowComment":304},"什么是 I\u002FO 多路复用？","os-io-multiplexing",{"raw":9,"autoGenerate":304},true,"2026-09-13T10:01:07.426950Z",[268],[112,265],false,"PUBLIC",{"permalink":311,"excerpt":312,"lastModifyTime":313,"phase":314},"\u002Farchives\u002Fos-io-multiplexing","一、定义 单个线程通过系统调用同时监听多个文件描述符，哪个就绪就处理哪个，避免阻塞在单个 I\u002FO 上。 二、select select(maxfd, &readfds, &writefds, &exceptfds, &timeout);\n 位图存储 fd，有最大数量限制（1024）。 每次调用都要把","2026-09-16T09:15:12.821909Z","PUBLISHED",[316],{"metadata":317,"spec":322,"status":326,"postCount":88},{"name":268,"creationTimestamp":318,"labels":319,"annotations":320},"2026-09-13T09:13:25.893081Z",{"haloweb.section":115},{"tutorial.halo.run\u002Fstatus":321},"updating",{"displayName":323,"slug":268,"cover":9,"description":324,"priority":325,"hideFromList":308,"preventParentPostCascadeQuery":308},"操作系统面试题","操作系统面试题：进程与线程、内存管理、IO 模型、CPU 调度与同步原语。",24,{"permalink":327,"postCount":88,"visiblePostCount":88},"\u002Fcategories\u002Fos",[329,332],{"metadata":330,"spec":331},{"name":112},{"displayName":114,"slug":115},{"metadata":333,"spec":334},{"name":265},{"displayName":267,"slug":268},{"metadata":336,"spec":339,"status":346,"categories":350,"tags":357},{"name":337,"creationTimestamp":338},"post-os-memory-manage-c9ef3f72","2026-09-13T10:01:07.077926Z",{"title":340,"slug":341,"cover":9,"excerpt":342,"publishTime":343,"categories":344,"tags":345,"priority":42,"pinned":308,"deleted":308,"visible":309,"allowComment":304},"操作系统的内存管理？","os-memory-manage",{"raw":9,"autoGenerate":304},"2026-09-13T10:01:07.126511Z",[268],[112,265],{"permalink":347,"excerpt":348,"lastModifyTime":349,"phase":314},"\u002Farchives\u002Fos-memory-manage","一、虚拟内存 每个进程有独立虚拟地址空间，通过页表映射到物理内存。进程以为自己独占内存。 二、分页 内存分成固定大小的页（通常 4KB），虚拟页映射到物理页帧。 页表：记录虚拟页到物理页的映射。 TLB：页表缓存，加速地址翻译。 缺页中断：访问的页不在内存，从磁盘加载。 三、分段 按逻辑单位分段（代","2026-09-16T09:15:12.350048Z",[351],{"metadata":352,"spec":355,"status":356,"postCount":88},{"name":268,"creationTimestamp":318,"labels":353,"annotations":354},{"haloweb.section":115},{"tutorial.halo.run\u002Fstatus":321},{"displayName":323,"slug":268,"cover":9,"description":324,"priority":325,"hideFromList":308,"preventParentPostCascadeQuery":308},{"permalink":327,"postCount":88,"visiblePostCount":88},[358,361],{"metadata":359,"spec":360},{"name":112},{"displayName":114,"slug":115},{"metadata":362,"spec":363},{"name":265},{"displayName":267,"slug":268},{"metadata":365,"spec":368,"status":375,"categories":379,"tags":386},{"name":366,"creationTimestamp":367},"post-os-deadlock-f7833246","2026-09-13T10:01:06.879036Z",{"title":369,"slug":370,"cover":9,"excerpt":371,"publishTime":372,"categories":373,"tags":374,"priority":42,"pinned":308,"deleted":308,"visible":309,"allowComment":304},"什么是死锁？如何避免？","os-deadlock",{"raw":9,"autoGenerate":304},"2026-09-13T10:01:06.930093Z",[268],[112,265],{"permalink":376,"excerpt":377,"lastModifyTime":378,"phase":314},"\u002Farchives\u002Fos-deadlock","一、四个必要条件 互斥：资源同一时间只能被一个进程使用。 持有并等待：进程持有资源同时等待其他资源。 不可剥夺：已获得的资源不能被强制夺走。 循环等待：进程间形成循环等待链。 二、预防 破坏四个条件之一： - 破坏互斥：难（有些资源必须互斥）。 - 破坏持有并等待：一次性申请所有资源。 - 破坏不可","2026-09-16T09:15:11.876156Z",[380],{"metadata":381,"spec":384,"status":385,"postCount":88},{"name":268,"creationTimestamp":318,"labels":382,"annotations":383},{"haloweb.section":115},{"tutorial.halo.run\u002Fstatus":321},{"displayName":323,"slug":268,"cover":9,"description":324,"priority":325,"hideFromList":308,"preventParentPostCascadeQuery":308},{"permalink":327,"postCount":88,"visiblePostCount":88},[387,390],{"metadata":388,"spec":389},{"name":112},{"displayName":114,"slug":115},{"metadata":391,"spec":392},{"name":265},{"displayName":267,"slug":268},{"metadata":394,"spec":397,"status":404,"categories":408,"tags":415},{"name":395,"creationTimestamp":396},"post-os-scheduler-be6008d8","2026-09-13T10:01:06.684412Z",{"title":398,"slug":399,"cover":9,"excerpt":400,"publishTime":401,"categories":402,"tags":403,"priority":42,"pinned":308,"deleted":308,"visible":309,"allowComment":304},"进程调度算法有哪些？","os-scheduler",{"raw":9,"autoGenerate":304},"2026-09-13T10:01:06.733759Z",[268],[112,265],{"permalink":405,"excerpt":406,"lastModifyTime":407,"phase":314},"\u002Farchives\u002Fos-scheduler","一、先来先服务（FCFS） 按到达顺序执行，非抢占。简单但短作业可能等待很久。 二、短作业优先（SJF） 预估运行时间短的先执行。平均等待时间最短，但长作业可能饥饿。 三、时间片轮转（RR） 每个进程分配一个时间片，用完就切换。适合交互式系统，响应快。 四、优先级调度 高优先级进程先执行。可抢占或非","2026-09-16T09:15:11.437318Z",[409],{"metadata":410,"spec":413,"status":414,"postCount":88},{"name":268,"creationTimestamp":318,"labels":411,"annotations":412},{"haloweb.section":115},{"tutorial.halo.run\u002Fstatus":321},{"displayName":323,"slug":268,"cover":9,"description":324,"priority":325,"hideFromList":308,"preventParentPostCascadeQuery":308},{"permalink":327,"postCount":88,"visiblePostCount":88},[416,419],{"metadata":417,"spec":418},{"name":112},{"displayName":114,"slug":115},{"metadata":420,"spec":421},{"name":265},{"displayName":267,"slug":268},{"metadata":423,"spec":426,"status":433,"categories":437,"tags":444},{"name":424,"creationTimestamp":425},"post-os-process-thread-afd2f460","2026-09-13T10:01:06.383471Z",{"title":427,"slug":428,"cover":9,"excerpt":429,"publishTime":430,"categories":431,"tags":432,"priority":42,"pinned":308,"deleted":308,"visible":309,"allowComment":304},"进程和线程的区别？","os-process-thread",{"raw":9,"autoGenerate":304},"2026-09-13T10:01:06.551909Z",[268],[265,112],{"permalink":434,"excerpt":435,"lastModifyTime":436,"phase":314},"\u002Farchives\u002Fos-process-thread","一、定义 进程：程序运行的实例，资源分配的基本单位，有独立地址空间。 线程：进程内的执行单元，CPU 调度的基本单位，共享进程资源。 二、对比 维度 进程 线程 资源 独立地址空间 共享进程资源 切换开销 大（切换页表、TLB） 小 通信 IPC（管道、消息队列、共享内存） 共享内存（需同步） 健壮","2026-09-16T09:14:46.493415Z",[438],{"metadata":439,"spec":442,"status":443,"postCount":88},{"name":268,"creationTimestamp":318,"labels":440,"annotations":441},{"haloweb.section":115},{"tutorial.halo.run\u002Fstatus":321},{"displayName":323,"slug":268,"cover":9,"description":324,"priority":325,"hideFromList":308,"preventParentPostCascadeQuery":308},{"permalink":327,"postCount":88,"visiblePostCount":88},[445,448],{"metadata":446,"spec":447},{"name":265},{"displayName":267,"slug":268},{"metadata":449,"spec":450},{"name":112},{"displayName":114,"slug":115}]