paul91

#!/bin/bash

# Install build dependencies
yum install -y gcc libpng libjpeg libpng-devel libjpeg-devel ghostscript libtiff libtiff-devel freetype freetype-devel

# Get GraphicsMagick source
wget ftp://ftp.graphicsmagick.org/pub/GraphicsMagick/1.3/GraphicsMagick-1.3.9.tar.gz
tar zxvf GraphicsMagick-1.3.9.tar.gz

# Configure and compile

jboner

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

dstroot

#!/bin/bash
echo "*****************************************"
echo " Based on information from Google"
echo " http://dev.chromium.org/spdy/spdy-best-practices"
echo "*****************************************"
sudo su
yum –y update
echo "*****************************************"
echo " Changing initcwnd and initrwnd"
echo " Step 1: check route settings."