Sasasu's recent timeline updates
Sasasu's repos on GitHub
30 watchers
PiVideoCapturer
A video capturer using TC358840XBG and arm SoC
C · 20 watchers
ColorThis
make your pipe and logfile colorful
Python · 20 watchers
matplotlib-tutorial-Simplified-Chinese
Matplotlib tutorial for chinese beginner
10 watchers
DellPSU2ATX
4 watchers
ebaz4205_ioboard
RPC · 4 watchers
MMDPlayer-web
a web mmdplayer using three.js
Rust · 4 watchers
placeholder
a fast mesh VPN written in rust and tokio
C · 3 watchers
algbench_for_postgresql
C · 3 watchers
pgts
Python · 2 watchers
bgm-graph
Java · 2 watchers
kdeconnect-android
a mirror for git://anongit.kde.org/kdeconnect-android.git with apk file
C · 2 watchers
microphone-library-for-pico
Capture audio from a microphone on your Raspberry Pi Pico or any RP2040 based board. 🎤
2 watchers
piprobe
C · 1 watchers
CustomScans
1 watchers
EBAZ4205
A 5$ Xilinx ZYNQ development board.
C · 1 watchers
kernel
Our patched kernel sources. This repository is generated from https://github.com/openSUSE/kernel-source
Python · 1 watchers
kicad_tools
Tools for kicad
1 watchers
numpy
The fundamental package for scientific computing with Python.
1 watchers
nuttx-apps
Apache NuttX Apps is a collection of tools, shells, network utilities, libraries, interpreters and can be used with the NuttX RTOS
C · 1 watchers
obs-studio
OBS
Go · 1 watchers
overlay
build tinc network in one file
1 watchers
postgresml
PostgresML is an AI application database. Download open source models from Huggingface, or train your own, to create and index LLM embeddings, generate text, or make online predictions using only SQL.
C++ · 1 watchers
qBittorrent-fakeTR
qBittorrent BitTorrent client
C++ · 1 watchers
sddm
QML based X11 and Wayland display manager
C · 1 watchers
slimevr-ble
0 watchers
3S_BMS
Python · 0 watchers
Ano-Bbs-Browser-Python-Script
用python命令行来浏览a岛的脚本,学习python练手作
Rust · 0 watchers
async_accept
Shell · 0 watchers
AUR_package
Sasasu 打包的一些 AUR 软件
Shell · 0 watchers
awesome-cheatsheets
超级速查表 - 编程语言、框架和开发工具的速查表,单个文件包含一切你需要知道的东西 :zap:
C · 0 watchers
BPI-M3-bsp
Supports BananaPi BPI -M3 (Kernel3.4)
C · 0 watchers
c4
C in four functions
HTML · 0 watchers
Casual-coding
Go · 0 watchers
clash
A rule-based tunnel in Go.
0 watchers
ClickHouse
ClickHouse is a free analytics DBMS for big data
Python · 0 watchers
Cluster-Simulator
Go · 0 watchers
concourse
Concourse is a container-based continuous thing-doer written in Go and Elm.
Emacs Lisp · 0 watchers
config
0 watchers
CYD-Klipper
An implementation of a wireless Klipper status display on an ESP32 + screen
C · 0 watchers
DapperMime
CMSIS-DAP using TinyUSB
0 watchers
diskquota
PostgreSQL disk quota extension
0 watchers
dso3254a_nand_dump
0 watchers
geospatial
PostGIS for Greenplum
0 watchers
gitignore
A collection of useful .gitignore templates
Go · 0 watchers
go-common
哔哩哔哩 bilibili 网站后台工程 源码
Go · 0 watchers
go-shadowsocks2
Experimental Shadowsocks in Go. Stable fork at https://github.com/shadowsocks/go-shadowsocks2
Go · 0 watchers
gocql
Package gocql implements a fast and robust Cassandra client for the Go programming language.
Go · 0 watchers
golasticdump
tool for moving elasticsearch data written in golang
C · 0 watchers
gpdb
Greenplum Database - Massively Parallel PostgreSQL for Analytics. An open-source massively parallel data platform for analytics, machine learning and AI.
0 watchers
hal_altera
C++ · 0 watchers
Ircbot
使用 asio 通过 socket 访问 IRC 的异步框架和卖萌机器人
0 watchers
jaeger
CNCF Jaeger, a Distributed Tracing Platform
JavaScript · 0 watchers
jaeger-ui
Web UI for Jaeger
Java · 0 watchers
java-hello-world-with-maven
Shell · 0 watchers
k8s-playbook
my k8s play note
C · 0 watchers
klipper
Klipper is a 3d-printer firmware
Shell · 0 watchers
kube-v6
Instructions on how to instantiate a multi-node, IPv6-only Kubernetes cluster.
C++ · 0 watchers
leetcode
leetcode
C++ · 0 watchers
LibGraph
Graph Library for C++
Shell · 0 watchers
linux-lqx
0 watchers
linux-xlnx
The official Linux kernel from Xilinx
0 watchers
lucene-solr
Apache Lucene and Solr open-source search software
0 watchers
madlib
Mirror of Apache MADlib
Python · 0 watchers
matplotlib-tutorial
Matplotlib tutorial for beginner
C · 0 watchers
nand_programmer
NANDO - NAND Open programmer
C++ · 0 watchers
nebula
A distributed, fast open-source graph database featuring horizontal scalability and high availability
0 watchers
nuttx
Apache NuttX is a mature, real-time embedded operating system (RTOS)
0 watchers
ODrive
Python · 0 watchers
osc
The Command Line Interface to work with an Open Build Service
0 watchers
pg-strom
PG-Strom - Master development repository
0 watchers
pgjdbc
Postgresql JDBC Driver
Rust · 0 watchers
pgrx
Build Postgres Extensions with Rust!
C++ · 0 watchers
PokeFinder
0 watchers
postgres
Mirror of the official PostgreSQL GIT repository. Note that this is just a *mirror* - we don't work with pull requests on github. To contribute, please see https://wiki.postgresql.org/wiki/Submitting_a_Patch
Shell · 0 watchers
pre-commit-golang
Golang hooks for pre-commit
Go · 0 watchers
prometheus
The Prometheus monitoring system and time series database.
C++ · 0 watchers
Qadao
a ADao client based on Qt
C++ · 0 watchers
qaq
Python · 0 watchers
qcloudapi-sdk-python
C · 0 watchers
qmk_firmware
Open-source keyboard firmware for Atmel AVR and Arm USB families
Rust · 0 watchers
rql
a query language for rust
0 watchers
rust-postgres
Native PostgreSQL driver for the Rust programming language
Rust · 0 watchers
rust-tcp
A learning experience in implementing TCP in Rust
Rust · 0 watchers
rust_radix_trie
Fast generic radix trie implemented in Rust
Shell · 0 watchers
samba
Samba docker container
HTML · 0 watchers
sasasu.github.io
Java · 0 watchers
SIM
Emacs Lisp · 0 watchers
spacemacs
A community-driven Emacs distribution - The best editor is neither Emacs nor Vim, it's Emacs *and* Vim!
C · 0 watchers
synergy
Share one mouse and keyboard between multiple computers on your desk.
C · 0 watchers
systemtap_play
my systemtap play note
C · 0 watchers
tinc
a VPN daemon
Rust · 0 watchers
tokio-linux-aio
Support for Linux kernel aio within Tokio.
0 watchers
tracing
Application level tracing for Rust.
C · 0 watchers
transmission-remote-gtk
A native GTK remote interface to the Transmission BitTorrent client written in C
C · 0 watchers
u-boot
"Das U-Boot" Source Tree
0 watchers
u-boot-xlnx
The official Xilinx u-boot repository
Shell · 0 watchers
upload-rpm-to-gcp-artifact
Sasasu

Sasasu

V2EX member #158800, joined on 2016-02-15 09:11:00 +08:00
Sasasu's recent replies
Mar 2
Replied to a topic by f1ynnv2 Apple 想买个美区礼品卡怎么这么费劲了
看到这个帖子是了一下,Apple 官网买了 $25 ,发货时间 15 分钟,用国内 VISA 卡付款
Oct 22, 2025
Replied to a topic by Donahue 问与答 该不该买摩托车?
合规电动自行车的优点:便宜
合规电动自行车的缺点:续航低。路权低。不能掉头。左转困难。

不合规电动自行车的优点:不需要增驾 D/E
不合规电动自行车的缺点:续航低。路权低。不能掉头。左转困难。不合法。速度超过 40 之后不舒服。

摩托车的优点:路权高,速度快,没有汽车的缺点。
摩托车的缺点:无论你的摩托车多贵,路上总是有人欺负你,经常怀疑自己的路权知识是不是错了同时道路设计让摩托车容易犯错。汽车颠一下的坑会让摩托车悬空。禁限摩。相较与电动自行车低速难控制。速度超过 80 之后不舒服。

汽车的优点:舒服。道路设施设计以汽车为主。汽车之间会互相尊重。
汽车的缺点:经常堵车。交停车费。保险贵。
Apr 16, 2023
Replied to a topic by liuser666 IPFS IPFS 技术有人了解吗?
2023 年 4 月,文件已经无法访问。
Jan 29, 2023
Replied to a topic by bmpidev2019 分享创造 SQLite 的文艺复兴
@codehz 想的优化 selec X from X where X in (select X from X)
@lichao 你想的优化:去掉 join 或者 where in 生成的 semi join ,把表搞宽。

第一个确实只优化 rtt ,大概率不存在 io 优化。第二个则是对于所有数据库都通用的方法。建议话说说明白而不是直接嘲讽对方不懂
是可行的。

比如欧姆龙 G6K-2F-RF-V ,开关延迟 2ms ,带宽 12.5 Gbps 。完全可以切换 DisplayPort 2.0 或者 USB 3.2 Gen 2 以及雷电 4 。但是价格也是很昂贵,需要 $72 一个。便宜一点的松下 ARS124H 带宽只有 3Gbps 了,价格也需要 $14 一个。

一般大家会选用专用的数字开关,比如 HD3SS460 带宽 5.4 Gbps 。$3.1 一个,其他牌子的应该会更便宜。

如果你的需求实在奇葩,可以选择固定电平的数字开关,或者模拟开关。比如 CH482D 带宽 10Gbps ,淘宝售价 ¥3.65 一个包邮。
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