qwfys

常用镜像仓库

• DockerHub镜像仓库

• google镜像仓库

  https://gcr.io/google-containers/

  https://gcr.io/kubernetes-helm/

tossmilestone

#!/bin/sh

install_v2ray(){
echo "Install v2ray..."
if [[ ! -f /usr/bin/v2ray/v2ray ]]
then
curl -Ls https://install.direct/go.sh | bash
fi

mkdir -p /etc/v2ray

nnathan

Linux Kernel Resources

Kernel

Compiling a Kernel

• https://kernelnewbies.org/KernelBuild
• https://kernelnewbies.org/FAQ/KernelCompilation

Kernel Module Compilation

mmitou

   BYTE UNIX Benchmarks (Version 5.1.3)

   System: localhost.localdomain: GNU/Linux
   OS: GNU/Linux -- 4.4.5-200.fc22.x86_64 -- #1 SMP Thu Mar 10 17:54:17 UTC 2016
   Machine: x86_64 (x86_64)
   Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
   CPU 0: Intel(R) Core(TM)2 Duo CPU P8700 @ 2.53GHz (5054.1 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
   CPU 1: Intel(R) Core(TM)2 Duo CPU P8700 @ 2.53GHz (5054.1 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization

squarism

Tabs and Windows

Function	Shortcut
New Tab	⌘ + T
Close Tab or Window	⌘ + W (same as many mac apps)
Go to Tab	⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction	⌘ + Option + Arrow Key
Cycle iTerm Windows	⌘ + backtick (true of all mac apps and works with desktops/mission control)

jsturgis

var mediaJSON = { "categories" : [ { "name" : "Movies",
        "videos" : [ 
		    { "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org",
              "sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ],
              "subtitle" : "By Blender Foundation",
              "thumb" : "images/BigBuckBunny.jpg",
              "title" : "Big Buck Bunny"
            },
            { "description" : "The first Blender Open Movie from 2006",
              "sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ],

jayjanssen

this is a sample of output:

root@percona-db-2:~# iperf -s -u -B 226.94.1.1 -i 1
------------------------------------------------------------
Server listening on UDP port 5001
Binding to local address 226.94.1.1
Joining multicast group  226.94.1.1
Receiving 1470 byte datagrams
UDP buffer size:   122 KByte (default)
------------------------------------------------------------

newhouseb

The basic idea here is to substantiate the claims made by this square post:
http://corner.squareup.com/2011/06/postgresql-data-is-important.html

In PostgreSQL, and MySQL (MyISAM and InnoDB) I create millions of rows and then add 
and remove columns and add and remove indexes.  For columns without defaults this is
basically free in PostgreSQL and O(n) in MySQL.  For adding indexes its at best O(n) 
everywhere, but with PostgreSQL it claims not to do any locking that would otherwise
prevent table interaction.

Also, PostgreSQL has _awsome_ documentation (it has real examples!). I always get