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rust程序内存泄漏问题定位
一个rust项目出现内存占用不断增大的问题，怀疑代码中有内存泄漏。
mastering ehtereum - 笔记
ch02 basics
ethereum yellowpaper - 笔记
World State
ethereum whitepaper - 笔记
Name Origin Aetherium/Volucite (Crystal necklace from Laputa: Castle in the Sky) ether Vitalik Buterin was inspired by a medieval scientific ...
mastering bitcoin - 笔记
ch02 How Bitcoin Works Alice to Bob’s rawtx(P2PKH) 0100000001186f9f998a5aa6f048e51dd8419a14d8a0f1a8a2836dd734d2804fe65fa35779000000008b483045022100884d142d86...
postgresql explain
explain基本结构 树状节点，第一行和以->开头的行是一个节点，每个node代表一个operation，node下的几行文字是这个节点/操作的额外说明(比如Seq Scan的FILTER)。上层的节点需要下层节点的输出，下层节点执行完了下层节点才能执行。 数字含义：(cost=1.14..10...
log4j 漏洞
对应CVE-2021-44228
CNNVD-202006-186
对应CVE-2020-0187
CNNVD-201710-758
对应CVE-2017-10355
golang vs rust code structure
Golang代码结构：workspace, module, package
how to get rid of acne by chatgpt
Acne can be a frustrating skin condition, but there are several steps you can take to help reduce its appearance:
2021
workspace, package, crate, module in rust
Module Privacy mod outer { mod a { pub mod aa { } } fn b(){} } a是b的sibling，b可以使用a中的pub item（functions, methods, structs, enums, modules, and constant...
python packaging
pip19开始支持pep517，pipenv最新版也支持。可以用pipenv安装poetry项目(https://github.com/python-poetry/poetry/issues/321)。pep517未明确editable install， 不能用-e参数；poetry自身支持
ch64: alternative io models
non-blocking io是基础，下边的几种模型，内部都是用nio进行的读写 nio就是 “return error” instead of “blocking”