Skip to content

Instantly share code, notes, and snippets.

View pwrliang's full-sized avatar

Liang Geng pwrliang

View GitHub Profile
@abhishekcs10
abhishekcs10 / install-gcc-5.4.0.sh
Last active September 11, 2024 02:17 — forked from jtilly/install-gcc-4.9.3.sh
Install GCC 5.4.0
#!/bin/bash
# this script installs GCC 5.4.0
# to use it navigate to your home directory and type:
# sh install-gcc-5.4.0.sh
# download and install gcc 4.9.3
wget https://github.com/gcc-mirror/gcc/archive/gcc-5_4_0-release.tar.gz
tar xzf gcc-5_4_0-release.tar.gz
cd gcc-5_4_0-release
@nmaggioni
nmaggioni / ufw_plex.md
Last active June 16, 2026 21:50 — forked from andrey-str/ufw plexmediaserver app profile.md
Plex Media Server UFW rule

/etc/ufw/applications.d/plexmediaserver

[plexmediaserver]
title=Plex Media Server (Standard)
description=The Plex Media Server
ports=32400/tcp|3005/tcp|5353/udp|8324/tcp|32410:32414/udp

[plexmediaserver-dlna]
title=Plex Media Server (DLNA)
description=The Plex Media Server (additional DLNA capability only)
@filitchp
filitchp / OpenCV-3.1-Ubuntu-16.04-Cuda-8.md
Last active December 12, 2019 21:36
Installing OpenCV 3.1 on Ubuntu 16.04 with Cuda 8 support

This is a guide for installing OpenCV 3.1 on Ubuntu 16.04 with Cuda 8 support. This has been tested using a system with a GeForce GTX 1060 and on one with a GeForce GTX 1080.

Nvidia Drivers with Compiz

Install Nvidia drivers

# Start clean
sudo apt purge nvidia-*
# Add the PPA
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt update
@understeer
understeer / latency.txt
Created January 12, 2017 14:04 — forked from eshelman/latency.txt
HPC-oriented Latency Numbers Every Programmer Should Know
Latency Comparison Numbers
--------------------------
L1 cache reference/hit 1.5 ns 4 cycles
Floating-point add/mult/FMA operation 1.5 ns 4 cycles
L2 cache reference/hit 5 ns 12 ~ 17 cycles
Branch mispredict 6 ns 15 ~ 20 cycles
L3 cache hit (unshared cache line) 16 ns 42 cycles
L3 cache hit (shared line in another core) 25 ns 65 cycles
Mutex lock/unlock 25 ns
L3 cache hit (modified in another core) 29 ns 75 cycles
@0xjac
0xjac / private_fork.md
Last active July 17, 2026 06:26
Create a private fork of a public repository

The repository for the assignment is public and Github does not allow the creation of private forks for public repositories.

The correct way of creating a private frok by duplicating the repo is documented here.

For this assignment the commands are:

  1. Create a bare clone of the repository. (This is temporary and will be removed so just do it wherever.)

git clone --bare git@github.com:usi-systems/easytrace.git

@Tai7sy
Tai7sy / ss-redir 透明代理.md
Created July 25, 2016 06:25 — forked from wen-long/ss-redir 透明代理.md
ss-redir 透明代理.md

##ss-redir 的 iptables 配置(透明代理)

透明代理指对客户端透明,客户端不需要进行任何设置就使用了网管设置的代理规则

创建 /etc/ss-redir.json 本地监听 7777 运行ss-redir -v -c /etc/ss-redir.json

iptables -t nat -N SHADOWSOCKS
# 在 nat 表中创建新链
iptables -t nat -A SHADOWSOCKS -p tcp --dport 23596 -j RETURN
# 23596 是 ss 代理服务器的端口,即远程 shadowsocks 服务器提供服务的端口,如果你有多个 ip 可用,但端口一致,就设置这个
@erikzenker
erikzenker / CMakeLists.txt
Last active April 15, 2024 17:17
CMake CUDA + C++ in separate files
# CMAKE FILE to separatly compile cuda and c++ files
# with the c++11 standard
#
#
# Folder structure:
#
# |
# +--main.cpp (with C++11 content)
# +--include/
# | |
@ashrithr
ashrithr / FIleSystemOperations.java
Created February 26, 2015 01:27
HDFS FileSystems API example
package com.cloudwick.mapreduce.FileSystemAPI;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
git config --global https.proxy http://127.0.0.1:1080
git config --global https.proxy https://127.0.0.1:1080
git config --global --unset http.proxy
git config --global --unset https.proxy
npm config delete proxy
@ochinchina
ochinchina / EchoClient.java
Last active September 20, 2023 09:52
Async socket demo in java
package asyncsocket;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.AsynchronousSocketChannel;
import java.nio.channels.CompletionHandler;
import java.util.concurrent.atomic.AtomicInteger;