I traveled back to China a couple of weeks ago. It is a beautiful time after the application period, and it is nice to return to my homeland after one year at Wisconsin-Madison; it is worth a blog to

PaperVerbitski, A., Gupta, A., Saha, D., Brahmadesam, M., Gupta, K., Mittal, R., … & Bao, X. (2017, May). Amazon aurora: Design considerations for high throughput cloud-native relational databases

1 Durability–Why we need LoggingLet’s first consider a NaiveDB,-step 1: Admit one transaction T-step 2: Execute T to completion-step 3: Atomically flush T’s writes to disk-step 4: Admit the next trans

ProgrammingWeek 1 HTML hyper-text markup language, defines the structure of the web, make up of a series of “elements” defined by “tags”. Each element can have a unique id attribute, used for CSS and

（我也不知道为什么要做 COMP 320 的 Notes，这感觉就像在我这个年纪学习如何上厕所） Repoducibility Each process owns address space. (one huge list) Multiple lists start at different address in address space; normally, append is faster

Week 1Universal Compute Turing Machine: any computable computation can be implemented by some machine Universal Turing Machine: A programmable computer is effectively a Universal Turing Machine (minus

正如之前的安排，8 月中旬去了美国东海岸旅游了一趟。路线是芝加哥->波士顿->纽约->华盛顿（主要是去 UMD）。一路风尘，回来安顿下来之后写一些随感。 在开始之前，我突然想起了余秋雨的《文化苦旅》，是初中的时候班主任推荐的。说实在我并不觉得《文化苦旅》的文笔有多好，指类似于《生活在树上》给人眼花缭乱的感觉，也不觉得其有多朴实，指类似于《骆驼祥子》给人过于“地道”的感觉。《文化苦

恍惚间，已经是 23 年 8 月 1 号了。抵美的第八个月。 上次更新博客已经是一个月前，看来当初还颇有自知之明。简单梳理一下这个月发生的事情。 大部分同期交换的同学已经回国，作为留守人员，承担着送人和薅羊毛的责任和权利，虽然后者偏多。处在异国他乡，尤其是在麦屯这种独立日都看不到烟花的乡村，感到寂寞是常有的事。好在麦迪逊风光确实不错，大部分时间也很安全，我赖以四处走动。贴上几幅随手所拍。不得不承认