kevinlee12

@setlocal enableextensions enabledelayedexpansion
@echo off

rem ===========================================================================
rem The following toggles the touch screen on the Lenovo Thinkpad Yoga 12 using
rem DevCon.exe. Please ensure that you have Devcon.exe installed before running 
rem this script. Please see Windows Device Console (Devcon.exe) page for Devcon
rem installation instructions.
rem This script must be run with admin privileges.
rem 

MadLittleMods

Realtek 8153

Download

Current version: 1.0.19 1.0.15 (as of 2018-12-10)

https://www.realtek.com/en/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-usb-3-0-software

http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=13&PFid=56&Level=5&Conn=4&DownTypeID=3&GetDown=false

sjenning

Linux Hugepages

Hugepages are a hardware feature designed to reduce pressure on the translation lookaside buffer (TLB) for applications that operate on large contiguous memory regions.

Take a program that operates on a large 2MB internal structure as an example. If the program accesses that space in such a way that one byte in each regular 4k page is accessed, 2M/4k = 512 TLB entries are needed. Each TLB miss at the hardware level requires and interrupt and kernel intervention to resolve. However, if the allocation is backed by a 2M hugepage by mmap()ing with MAP_HUGETLB, only 1 TLB entry is required.

On x86_64, there are two hugepage sizes: 2MB and 1G. 1G hugepages are also called gigantic pages. 1G must be enabled on kernel boot line with hugepagesz=1G. Hugeages, especially 1G ones, should to be allocated early before memory fragments (i.e. at/near boot time) to increase the likelihood that they can be allocated successfully with minimal memory migration (i.e. defreg) required

mcastelino

How to launch QEMU from command line without libvirt with macvtap and vhost support

This sets up a host local bridge with a macvlan interface for VM to host communication. The macvtap is setup with vhost support.

The command line options to note are

-netdev tap,fd=3,id=hostnet0,vhost=on,vhostfd=4 3<>$"$tapdev" 4<>/dev/vhost-net -device virtio-net-pci,netdev=hostnet0,id=net0,mac=$(< /sys/class/net/testtap/address)

This sets up two different fd's. The first for macvtap and the second for vhost-net.

kkweon

나만의 Docker Reference

• Docker 타겟유저
  • 빌드 문제
  • DB사용
  • 배포
  • Scalability
• Docker와 함께하는 개발 workflow
• Docker 연습 환경

mbinna

Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.

After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

raplin

# This card is pretty dope; gets hot at high MIMO tx power, needs cooling! Unclear if these listed TX powers are correct at the antenna port..

iw list
Wiphy phy1
        max # scan SSIDs: 10
        max scan IEs length: 2048 bytes
        max # sched scan SSIDs: 0
        max # match sets: 0
        max # scan plans: 1
        max scan plan interval: -1