francoisjacques

How to use 'pci pass-through' to run Linux in Qemu accessing real Ath9k adapter
===============================================================================

# Boot kernel with 'intel_iommu=on'

# Unbind driver from the device and bind 'pci-stub' to it
echo "168c 0030" > /sys/bus/pci/drivers/pci-stub/new_id
echo 0000:0b:00.0 > /sys/bus/pci/devices/0000:0b:00.0/driver/unbind
echo 0000:0b:00.0 > /sys/bus/pci/drivers/pci-stub/bind

francoisjacques

module Where
  class <<self
    attr_accessor :editor
    
    def is_proc(proc)
      source_location(proc)
    end
    
    def is_method(klass, method_name)
      source_location(klass.method(method_name))

francoisjacques

#!/bin/bash

mkdir wordpress-site && cd wordpress-site

touch docker-compose.yml

cat > docker-compose.yml <<EOL
version: "2"
services:
  my-wpdb:

francoisjacques

/* How to calculate postgreSQL database size in disk ? */

SELECT pg_size_pretty(pg_database_size('thedbname'));

/* Calculate size of a table including or excluding the index */

SELECT pg_size_pretty(pg_total_relation_size('big_table'));
SELECT pg_size_pretty(pg_relation_size('big_table')); /* without index */

/* See indexes on a table with `\d tablename` */

francoisjacques

Types of index scans

Indexes

Sequential Scan:

• Read every row in the table
• No reading of index. Reading from indexes is also expensive.

francoisjacques

# Change Java Runtime:
sudo update-alternatives --config java

# Delete Open-JDK
sudo apt-get purge openjdk-\* icedtea-\* icedtea6-\*

# Change fonts - remove hinting:
http://askubuntu.com/questions/32624/ugly-fonts-in-netbeans-how-can-i-make-it-use-the-system-font

# Change RubyMine AntiAliasing first:

francoisjacques

# Put expressions that hit more files first.
/home/chroot/.*
/home/[^/]+/Workspaces?/.*/target/.*
/home/[^/]+/Workspaces?/.*/\.pants\.d.*
/home/[^/]+/\.m2/repository/.*
/home/[^/]+/\.ivy2/(?:cache|local|limiter)/.*
/home/[^/]+/.*(?:~|\.(?:log|tmp|bak|lock))
/home/[^/]+/S3/.*
/home/[^/]+/Virtualization/Machines/.*

francoisjacques

#!/bin/bash

#
# template script for generating CentOS container for LXC
#

#
# lxc: linux Container library

# Authors: