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package main

import (
	"log"
	"log/syslog"
	"encoding/json"
	"fmt"

)

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To limit a CPU to a certain C-state, you can pass the processor.max_cstate=X option in the kernel line of /boot/grub/grub.conf.

Here we limit the system to only C-State 1:

    kernel /vmlinuz-2.6.18-371.1.2.el5 ... processor.max_cstate=1

On some systems, the kernel can override the BIOS setting, and the parameter intel_idle.max_cstate=0 may be required to ensure sleep states are not entered:

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Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

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Step 0
Find the Bus and Device ID:

$ lsusb
...
Bus 001 Device 008: ID 0781:5151 SanDisk Corp. Cruzer Micro Flash Drive
...
Step 1
Boot with QEMU:

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Create the directory for the new instance

$ sudo install -o redis -g redis -d /var/lib/redis2

Create a new configuration file

$ sudo cp -p /etc/redis/redis.conf /etc/redis/redis2.conf

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Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

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1:30:23.895612 IP 100.100.1.2 > 200.200.1.2: ICMP echo request, id 26762, seq 7443, length 64
11:30:23.896175 IP 200.200.1.2 > 100.100.1.2: ICMP echo reply, id 26762, seq 7443, length 64
11:30:23.999616 IP 100.100.1.2 > 200.200.1.2: ICMP echo request, id 26762, seq 7444, length 64
11:30:24.000043 IP 200.200.1.2 > 100.100.1.2: ICMP echo reply, id 26762, seq 7444, length 64
11:30:24.103623 IP 100.100.1.2 > 200.200.1.2: ICMP echo request, id 26762, seq 7445, length 64
11:30:24.104053 IP 200.200.1.2 > 100.100.1.2: ICMP echo reply, id 26762, seq 7445, length 64
11:30:24.207621 IP 100.100.1.2 > 200.200.1.2: ICMP echo request, id 26762, seq 7446, length 64
11:30:24.208094 IP 200.200.1.2 > 100.100.1.2: ICMP echo reply, id 26762, seq 7446, length 64
11:30:24.311626 IP 100.100.1.2 > 200.200.1.2: ICMP echo request, id 26762, seq 7447, length 64
11:30:24.312091 IP 200.200.1.2 > 100.100.1.2: ICMP echo reply, id 26762, seq 7447, length 64

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rrdtool create latency_db.rrd \
--step 180 \
DS:pl:GAUGE:540:0:100 \
DS:rtt:GAUGE:540:0:10000000 \
RRA:MAX:0.5:1:500\

#!/bin/bash
#
### set the paths
command="/bin/ping -q -n -c 3"

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### quagga

dpdk-pktj# show running-config  
Building configuration...

Current configuration:
!
hostname Router
hostname bgpd
log stdout

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# use polipo to connect to ss server locally, and support polipo listen under 8123.
git config --global http.proxy http://127.0.0.1:8123
HTTP_PROXY=http://127.0.0.1:8123 go get X
git config --global --unset http.proxy

# Encap this to override the issue because fucking GFW block google sites...