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Neblk
https://zhuanlan.zhihu.com/p/670228287
#嵌入式系统
知乎专栏
在Linux下查看eMMC芯片的寿命信息
众所周知,SSD的SMART信息中包含了健康度信息,用户可以在寿命耗尽之前备份数据。而TF卡和U盘这样的设备没有健康度信息,失效方式是暴毙,好一点的会只读保护,给用户备份数据的机会。 eMMC芯片广泛使用在各种设备…
Neblk
https://www.ruanyifeng.com/blog/2018/03/systemd-timer.html
Neblk
https://zhuanlan.zhihu.com/p/26464793
知乎专栏
计算机中断体系一:历史和原理
中断系统是现代PC的基础架构之一,我们常常能听到很多相关概念:IRQ,PIRQ,PCI Interrupt PIN,MSI,GSI,Vector(中断向量)。这些术语有些是硬件概念,有些是软件概念,他们时常混在一起,让人十分迷惑。本系列…
Neblk
https://stackoverflow.com/a/44830670
Stack Overflow
Detecting signed overflow in C/C++
At first glance, this question may seem like a duplicate of How to detect integer overflow?, however it is actually significantly different.
I've found that while detecting an unsigned integer ove...
Neblk
https://gpuopen.com/learn/amdgcn-assembly/
AMD GPUOpen
The Art of AMDGCN Assembly: How to Bend the Machine to Your Will
The ability to write code in assembly is essential to achieving the best performance for a GPU program.This post explains how to produce Hsaco from assembly.
Neblk
https://zhuanlan.zhihu.com/p/186201147
知乎专栏
Linux系统top命令中的iowait究竟是什么意思?
Linux系统top命令中的iowait究竟是什么意思?发表于 2019-08-08 21:08:56 | 已被 访问: 1,487 次 | 分类于: Linux笔记最近在做连续数据流的缓冲系统,C语言代码实现后,粗略测试了下,功能上应该没有问题。那么,…
Neblk
Forwarded from
Alynx Zhou
https://sh.alynx.one/posts/Xen-HVM-PV/
喵's StackHarbor
构建和运行 Xen HVM 和 PV
请注意本文并不是推荐读者使用 Xen 作为虚拟化方案,相反,KVM 才是目前更合适大部分读者的方案。 简介 由于工作需要,最近我需要搞一个 Xen PV 来进行测试,在此之前我一直使用 qemu/KVM,只是听说 Xen 是 KVM 之前流行过的虚拟化方案。比起几乎什么都不需要做交给 libvirt 包办就可以的 KVM,Xen 的设置相对要复杂一点。
Neblk
Forwarded from
Alynx Zhou
Neblk
https://sh.alynx.one/posts/Xen-HVM-PV/
我将会为任何因为不得不使用Xen而阅读这篇文章的读者祈祷并祝他们幸福
Neblk
https://www.zhihu.com/question/24510237
Zhihu
是否存在一个字符串集合,使得不存在一个正则表达式匹配且仅匹配这个集合中的字符串? - 知乎
若存在,请举例说明;若不存在,该如何证明?
Neblk
https://mcastelino.medium.com/slirp4netns-how-does-it-work-5c0bd31200ce
Medium
slirp4netns — How does it work
slirp4netns provides user-mode networking (“slirp”) for unprivileged network namespaces. This is heavily used in rootless-containers.
Neblk
https://unix.stackexchange.com/a/194058
Unix & Linux Stack Exchange
How to clear journalctl
I couldn't find in google any safe way to clear systemd journal. Do anyone know any safe and reliable way to do so?
Let's say I was experimenting with something and my logs got cluttered with vari...
Neblk
https://www.cnblogs.com/sangria/p/15827740.html
Cnblogs
使用 fail2ban 保护 frp 服务 - SangriaChant - 博客园
背景 我们一般会使用 fail2ban 来保护暴露到公网的提供密码登录的 ssh 连接等。 但使用 frp 穿透后所有的从外网访问都会变成 127.0.0.1 进入的,原本能用 fail2ban 保护的如 ssh 服务将无法使用。 因此 fail2ban 应该放到 frps 服务器上。但 frps
Neblk
Forwarded from
Catoverflow
https://stackoverflow.com/a/36883726/13218113
来补课
Stack Overflow
Convert finite state machine to regular expression
Is there a tool (or an algorithm) to convert a finite state machine into a regular expression?
(not the other way around, that would be easy).
Neblk
Forwarded from
Catoverflow
这个问题有限状态机就很好写
Neblk
https://ivanzuzak.info/noam/webapps/fsm2regex/
ivanzuzak.info
FSM2Regex
Fsm2Regex is a Web application for transforming finite state machines to regular expressions and regexes to FSMs.
Neblk
https://cs.stackexchange.com/questions/2016/how-to-convert-finite-automata-to-regular-expressions
Computer Science Stack Exchange
How to convert finite automata to regular expressions?
Converting regular expressions into (minimal) NFA that accept the same language is easy with standard algorithms, e.g. Thompson's algorithm. The other direction seems to be more tedious, though, and
Neblk
https://www.zhihu.com/question/66374524
Zhihu
关于CPU流水线 多发射 超标量 CPU微码 之间 的关系和原理? - 知乎
希望能够写的通俗易懂之前见过一篇文章说 有三种指令一种是可以随便写,写了可以随便发射,无序执行一种是…
Neblk
Computer_Architecture,_Sixth_Edition_A_Quantitative_Approach_John.pdf
34.9 MB
Computer_Organization_and_Design_RISC_V_Edition_The_Hardware_Software.pdf
13.5 MB
Computer_Organization_and_Design_The_Hardware_Software_Interface.pdf
29.8 MB
2025/07/12 13:01:24
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