Optimize Server Hard Disk for Performance to MySQL but not safe

sudo tune2fs -o journal_data_writeback /dev/sda1 (use the right partition)

vim /etc/fstab

ext4 errors=remount-ro,noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,nouser_xattr 0 1

vim /etc/my.cnf

innodb_flush_log_at_trx_commit = 2

Script for optimizing images in a directory (recursive) in Linux


#!/bin/sh

# script for optimizing images in a directory (recursive)
# pngcrush & jpegtran settings from:
# http://developer.yahoo.com/performance/rules.html#opt_images

# pngcrush
for png in `find $1 -iname "*.png"`; do
echo "crushing $png ..."
pngcrush -rem alla -reduce -brute "$png" temp.png

# preserve original on error
if [ $? = 0 ]; then
mv -f temp.png $png
else
rm temp.png
fi
done

# jpegtran
for jpg in `find $1 -iname "*.jpg"`; do
echo "crushing $jpg ..."
jpegtran -copy none -optimize -perfect "$jpg" > temp.jpg

# preserve original on error
if [ $? = 0 ]; then
mv -f temp.jpg $jpg
else
rm temp.jpg
fi
done

The first post on Juzhax.com

The first post on Juzhax.com

My previous personal blog, Justin.my isn’t a personal blog anymore. It is most like a game walkthrough, solution sites more than a personal blog. And there is no place to let me share some technology related post there.

What am I going to share in here

I would like to share a lot of technology in here and I could blog down some linux command or some raspberry pi related testing, then will be some Arduino related article in here too. Sometimes I will share some of my personal photos in here too. I will update the blog in here often after this Chinese New Year. Happy Chinese New Year to everyone visit in here.