{"topic":{"id":11497,"title":"CS162 学习记录","slug":"topic","categoryId":54,"createdAt":"2024-04-16 15:35:49.214015","bumpedAt":"2024-11-04 15:09:10.460601","views":1225,"postsCount":86,"highestPostNumber":86,"likeCount":32,"closed":false,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"摆了半个学期不能再这么下去了帖子主要当个分布式学习闹钟，什么时候不更新了请门友狠狠 t 我 😡 也欢迎学过/正在学的门友交流","deletedAt":null,"isAnonymous":false,"category":{"id":54,"name":"学术专区","slug":"academic","color":"9EB83B"},"author":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif"},"tags":[]},"posts":[{"id":29948,"postNumber":1,"raw":"摆了半个学期不能再这么下去了 :sob_pleading_face:\n帖子主要当个分布式学习闹钟，什么时候不更新了请门友狠狠 t 我 :pout:\n\n也欢迎学过/正在学的门友交流","cooked":"

摆了半个学期不能再这么下去了 $\":sob_pleading_face:\"$
\n帖子主要当个分布式学习闹钟，什么时候不更新了请门友狠狠 t 我 😡

也欢迎学过/正在学的门友交流

\n","createdAt":"2024-04-16 15:35:49.323212","updatedAt":"2024-11-05 15:29:52.882496","replyToPostNumber":null,"replyCount":0,"likeCount":4,"wordCount":59,"liked":false,"bookmarked":false,"polls":[],"reactions":[{"reaction":"🐈️","count":1,"users":[{"id":30,"username":"一只玉米人","name":"玉米🌽"}],"hasReacted":false},{"reaction":"❤️","count":4,"users":[{"id":30,"username":"一只玉米人","name":"玉米🌽"},{"id":601,"username":"m0rsun","name":null},{"id":1941,"username":"john","name":"John"},{"id":6205,"username":"uika_winwing","name":null}],"hasReacted":false}],"wiki":false,"version":3,"publicVersion":3,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29951,"postNumber":2,"raw":"好好好我刚存下 cs162 2024spring 的视频你就出来了是吧","cooked":"

好好好我刚存下 cs162 2024spring 的视频你就出来了是吧

\n","createdAt":"2024-04-16 15:36:34.015201","updatedAt":"2024-04-16 15:36:34.015201","replyToPostNumber":null,"replyCount":2,"likeCount":0,"wordCount":19,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":178,"username":"Hypocrisy","name":"rotartsinimdA","avatarUrl":"/uploads/image/ce/f3/cef3773e378e161524cc7523c8a63dff0698d22802b0c1ab669894d395ee36a3.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}},{"id":29952,"postNumber":3,"raw":"我看的是 2020 的","cooked":"

我看的是 2020 的

\n","createdAt":"2024-04-16 15:36:50.286105","updatedAt":"2024-04-16 15:36:50.286105","replyToPostNumber":2,"replyCount":1,"likeCount":0,"wordCount":6,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29953,"postNumber":4,"raw":"你要 2024 Spring 版本的吗我可以私发给你","cooked":"

你要 2024 Spring 版本的吗我可以私发给你

\n","createdAt":"2024-04-16 15:37:06.576396","updatedAt":"2024-04-16 15:37:06.576396","replyToPostNumber":3,"replyCount":1,"likeCount":0,"wordCount":15,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":178,"username":"Hypocrisy","name":"rotartsinimdA","avatarUrl":"/uploads/image/ce/f3/cef3773e378e161524cc7523c8a63dff0698d22802b0c1ab669894d395ee36a3.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}},{"id":29954,"postNumber":5,"raw":"好啊好啊 wow","cooked":"

好啊好啊 wow

\n","createdAt":"2024-04-16 15:37:35.309639","updatedAt":"2024-04-16 15:37:35.309639","replyToPostNumber":4,"replyCount":1,"likeCount":0,"wordCount":5,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29955,"postNumber":6,"raw":"QQ 查收","cooked":"

QQ 查收

\n","createdAt":"2024-04-16 15:38:08.704402","updatedAt":"2024-04-16 15:38:08.704402","replyToPostNumber":5,"replyCount":0,"likeCount":0,"wordCount":3,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":178,"username":"Hypocrisy","name":"rotartsinimdA","avatarUrl":"/uploads/image/ce/f3/cef3773e378e161524cc7523c8a63dff0698d22802b0c1ab669894d395ee36a3.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}},{"id":29956,"postNumber":7,"raw":"首先是 Lecture1。\n老师叫 Jonh Kubi*****后面不会念也记不住，然后老师说大家都叫他 Professor Kubi。\n\n然后他先给了一张很帅的图 [正在处理：\n![image|690x378](/uploads/image/30/38/30381716aa98e538e22a8ce2232102a0990d47bac56f0d12a0ce4301491fc6c0.avif)\n这个图是 internet 的节点图，受 IP 所限目前大约有 38 亿节点，而每个节点背后都有大量的设备，每个这种设备上都运行着一个 OS\n\nKubi 大概的讲了许多跟 OS 有关的历史，讲了什么是 OS，最后给出了一个结论：\nOS 提供了一种对于机器的抽象，这种抽象建立在硬件之上，是为了简化应用编写而作，隐藏了各类硬件细节。OS 还为每个用户/进程协调了各类资源的分配和共享。","cooked":"

首先是 Lecture1。
\n老师叫 Jonh Kubi*****后面不会念也记不住，然后老师说大家都叫他 Professor Kubi。

然后他先给了一张很帅的图 [正在处理：
\n $\"image\"$
\n这个图是 internet 的节点图，受 IP 所限目前大约有 38 亿节点，而每个节点背后都有大量的设备，每个这种设备上都运行着一个 OS

Kubi 大概的讲了许多跟 OS 有关的历史，讲了什么是 OS，最后给出了一个结论：
\nOS 提供了一种对于机器的抽象，这种抽象建立在硬件之上，是为了简化应用编写而作，隐藏了各类硬件细节。OS 还为每个用户/进程协调了各类资源的分配和共享。

\n","createdAt":"2024-04-16 15:42:46.261949","updatedAt":"2024-04-16 15:42:46.261949","replyToPostNumber":null,"replyCount":0,"likeCount":1,"wordCount":206,"liked":false,"bookmarked":false,"polls":[],"reactions":[{"reaction":"🥰️","count":1,"users":[{"id":178,"username":"Hypocrisy","name":"rotartsinimdA"}],"hasReacted":false},{"reaction":"❤️","count":1,"users":[{"id":178,"username":"Hypocrisy","name":"rotartsinimdA"}],"hasReacted":false}],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29957,"postNumber":8,"raw":"明天应该会继续读书，没更新请门友狠狠 t 我","cooked":"

明天应该会继续读书，没更新请门友狠狠 t 我

\n","createdAt":"2024-04-16 15:44:34.734569","updatedAt":"2024-04-16 15:44:34.734569","replyToPostNumber":null,"replyCount":1,"likeCount":0,"wordCount":20,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29959,"postNumber":9,"raw":"为什么不是超","cooked":"

为什么不是超

\n","createdAt":"2024-04-16 15:44:51.176694","updatedAt":"2024-04-16 15:44:51.176694","replyToPostNumber":8,"replyCount":0,"likeCount":0,"wordCount":6,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":178,"username":"Hypocrisy","name":"rotartsinimdA","avatarUrl":"/uploads/image/ce/f3/cef3773e378e161524cc7523c8a63dff0698d22802b0c1ab669894d395ee36a3.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}},{"id":29960,"postNumber":10,"raw":"Lecture1 同时提纲挈领地给出了教学大纲：\n![image|690x355](/uploads/image/7c/7f/7c7f46cf869a9e9cf53c47d7f46782bda442fea251f432ba9be53af87af4be9f.avif)\n- 一些 OS 概念\n\n- 并发编程，包括线程，调度，锁，死锁，可扩展性（是指什么？），公平性（是指核心调度的公平性吗？）\n\n- 地址空间，包括虚拟内存，地址转换，保护（可能说的是例如保护一个进程中的内存不被别的进程破坏？），共享（也许是指两个进程间的共享？例如共享内存）\n\n- 文件系统，包括 IO 设备，文件对象（文件描述符吗？），存储，命名，缓存（比如页表和 Cache？），性能（想起来了 ICS 课上讲的那个内存大山），事务（好像是数据库的概念），数据库\n\n- 分布式系统，协议（像 TCP，UDP 那种？），剩下的不认识，不知道是啥\n\n- 可靠性和安全性\n\n求指点","cooked":"

Lecture1 同时提纲挈领地给出了教学大纲：
\n $\"image\"$

\n
一些 OS 概念
\n
\n
并发编程，包括线程，调度，锁，死锁，可扩展性（是指什么？），公平性（是指核心调度的公平性吗？）
\n
\n
地址空间，包括虚拟内存，地址转换，保护（可能说的是例如保护一个进程中的内存不被别的进程破坏？），共享（也许是指两个进程间的共享？例如共享内存）
\n
\n
文件系统，包括 IO 设备，文件对象（文件描述符吗？），存储，命名，缓存（比如页表和 Cache？），性能（想起来了 ICS 课上讲的那个内存大山），事务（好像是数据库的概念），数据库
\n
\n
分布式系统，协议（像 TCP，UDP 那种？），剩下的不认识，不知道是啥
\n
\n
可靠性和安全性
\n

求指点

\n","createdAt":"2024-04-16 15:54:54.260539","updatedAt":"2024-04-16 15:54:54.260539","replyToPostNumber":null,"replyCount":1,"likeCount":0,"wordCount":250,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29961,"postNumber":11,"raw":"这里 Kubi 非常明确的说了，File Systems 是他的最爱，数据是最重要的最需要保护的东西，合理。","cooked":"

这里 Kubi 非常明确的说了，File Systems 是他的最爱，数据是最重要的最需要保护的东西，合理。

\n","createdAt":"2024-04-16 15:55:46.298521","updatedAt":"2024-04-16 15:55:46.298521","replyToPostNumber":10,"replyCount":0,"likeCount":0,"wordCount":37,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29963,"postNumber":12,"raw":"Lecture1 给出了在本堂课中的 Projects 会着重用到的自研精简操作系统 Pintos，将会有三次针对于 Pintos 的 Project\n分别针对\n- 用户程序（exec && syscall）什么意思，程序执行和系统调用吗？\n- 线程和调度\n- 文件系统\n\n从 cswiki.diy 上面得到的信息是，即使把 Projects 平均分给 4 个人也需要将近 40 小时每人，每人分配到的代码量大概有 2000 多行。","cooked":"

Lecture1 给出了在本堂课中的 Projects 会着重用到的自研精简操作系统 Pintos，将会有三次针对于 Pintos 的 Project
\n分别针对

用户程序（exec && syscall）什么意思，程序执行和系统调用吗？
线程和调度
文件系统

从 cswiki.diy 上面得到的信息是，即使把 Projects 平均分给 4 个人也需要将近 40 小时每人，每人分配到的代码量大概有 2000 多行。

\n","createdAt":"2024-04-16 16:07:04.886729","updatedAt":"2024-04-16 16:07:04.886729","replyToPostNumber":null,"replyCount":1,"likeCount":0,"wordCount":125,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29964,"postNumber":13,"raw":"帅！我上的 23sp，也是 kubi\n你自己一个人写四人 project 吗，我们当时三个大神 + 我每周都花了好多时间才写完\n另外我们当时有 ta 把关 design doc，避免 project 从上手就是错的这种情况，可能你只能自己多注意一下 design 了","cooked":"

帅！我上的 23sp，也是 kubi
\n你自己一个人写四人 project 吗，我们当时三个大神 + 我每周都花了好多时间才写完
\n另外我们当时有 ta 把关 design doc，避免 project 从上手就是错的这种情况，可能你只能自己多注意一下 design 了

\n","createdAt":"2024-04-16 16:10:27.264161","updatedAt":"2024-04-16 16:11:45.925788","replyToPostNumber":null,"replyCount":2,"likeCount":0,"wordCount":84,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":601,"username":"m0rsun","name":null,"avatarUrl":"/uploads/image/37/7f/377f4ae853850691ab959270f01d52509ee07caf808041ddb0ab22488a0e9f85.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}},{"id":29966,"postNumber":14,"raw":"草， :loudly_crying_face:那怎么感觉很容易搞错啊，，","cooked":"

草， 😭那怎么感觉很容易搞错啊，，

\n","createdAt":"2024-04-16 16:17:13.534771","updatedAt":"2024-04-16 16:17:13.534771","replyToPostNumber":13,"replyCount":1,"likeCount":0,"wordCount":15,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29968,"postNumber":15,"raw":"草，我感觉 162 其实不太适合刷课，我当时课没怎么上但配套设施用了个全 (ta，discussion，autograder，组员)，要不换个能单刷的 OS 课 (？","cooked":"

草，我感觉 162 其实不太适合刷课，我当时课没怎么上但配套设施用了个全 (ta，discussion，autograder，组员)，要不换个能单刷的 OS 课 (？

\n","createdAt":"2024-04-16 16:35:33.443975","updatedAt":"2024-04-16 16:35:33.443975","replyToPostNumber":14,"replyCount":2,"likeCount":0,"wordCount":47,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":601,"username":"m0rsun","name":null,"avatarUrl":"/uploads/image/37/7f/377f4ae853850691ab959270f01d52509ee07caf808041ddb0ab22488a0e9f85.avif","admin":false,"moderator":true,"signatureRaw":null,"signatureCooked":null}},{"id":29969,"postNumber":16,"raw":"我有个朋友大三时候单刷了，我在追随他的步伐","cooked":"

我有个朋友大三时候单刷了，我在追随他的步伐

\n","createdAt":"2024-04-16 16:37:17.873638","updatedAt":"2024-04-16 16:37:25.800608","replyToPostNumber":15,"replyCount":0,"likeCount":2,"wordCount":21,"liked":false,"bookmarked":false,"polls":[],"reactions":[{"reaction":"😍️","count":1,"users":[{"id":178,"username":"Hypocrisy","name":"rotartsinimdA"}],"hasReacted":false},{"reaction":"👍️","count":1,"users":[{"id":601,"username":"m0rsun","name":null}],"hasReacted":false},{"reaction":"❤️","count":2,"users":[{"id":178,"username":"Hypocrisy","name":"rotartsinimdA"},{"id":601,"username":"m0rsun","name":null}],"hasReacted":false}],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29985,"postNumber":17,"raw":"好巧。我上的 23sp，也是 kubi。这门课质量比较高，非常推荐。","cooked":"

好巧。我上的 23sp，也是 kubi。这门课质量比较高，非常推荐。

\n","createdAt":"2024-04-16 20:13:42.250466","updatedAt":"2024-04-16 20:13:42.250466","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":24,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":468,"username":"uebian","name":null,"avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29986,"postNumber":18,"raw":"但是从另一方面说，所有的 project 都有大量公开的测试样例（因此可以自己本地测试而不需要 autograder），所以也比较好避免这方面的问题。","cooked":"

但是从另一方面说，所有的 project 都有大量公开的测试样例（因此可以自己本地测试而不需要 autograder），所以也比较好避免这方面的问题。

\n","createdAt":"2024-04-16 20:14:23.349993","updatedAt":"2024-04-16 20:14:23.349993","replyToPostNumber":13,"replyCount":0,"likeCount":0,"wordCount":55,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":468,"username":"uebian","name":null,"avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29987,"postNumber":19,"raw":"感觉这门课的 autograder 约等于没用，所有 project 的测试点都在本地，可以调试。","cooked":"

感觉这门课的 autograder 约等于没用，所有 project 的测试点都在本地，可以调试。

\n","createdAt":"2024-04-16 20:16:16.801473","updatedAt":"2024-04-16 20:16:16.801473","replyToPostNumber":15,"replyCount":1,"likeCount":1,"wordCount":30,"liked":false,"bookmarked":false,"polls":[],"reactions":[{"reaction":"👍️","count":1,"users":[{"id":601,"username":"m0rsun","name":null}],"hasReacted":false},{"reaction":"❤️","count":1,"users":[{"id":601,"username":"m0rsun","name":null}],"hasReacted":false}],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":468,"username":"uebian","name":null,"avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":29995,"postNumber":20,"raw":"wow，那还蛮方便的\n说实话我没有运行过一个操作系统程序过，所以 Pintos 的调试大概是怎样进行的呢？会是在一个操作系统上运行，还是有某种其他方式，比如像一个 U 盘那样插到电脑上运行？","cooked":"

wow，那还蛮方便的
\n说实话我没有运行过一个操作系统程序过，所以 Pintos 的调试大概是怎样进行的呢？会是在一个操作系统上运行，还是有某种其他方式，比如像一个 U 盘那样插到电脑上运行？

\n","createdAt":"2024-04-17 01:24:32.96911","updatedAt":"2024-04-17 01:24:32.96911","replyToPostNumber":19,"replyCount":1,"likeCount":0,"wordCount":82,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":199,"username":"Lrefrain","name":null,"avatarUrl":"/uploads/image/97/69/9769ddd94c97978cf278e3b4b997ba4b7cfb26abaa7f18aa567820370b7a8a5b.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}}],"hasMore":true,"lastReadPostNumber":1,"hasUrlPostNumber":false}