EasyEngine: WordPress made easy

So, newbies out there, for those that have a root server access or VPS, and you want to create a blog. There is a tool called EasyEngine that could help you (automate) setup Nginx (not Apache), PHP (or PHP7/HHVM), MariaDB/MySQL database, Postfix mail transfer agent, WordPress, WP Super Cache (or W3 Total Cache, Nginx Cache, WP Redis) on Ubuntu or Debian operating system.

There's a lot more it can offer:

• WP-CLI: Command line interface for WordPress
• Redis: in-memory database
• Adminer: single php file database (not just MySQL) manager (formerly called PhpMinAdmin)
• PhpRedisAdmin: Redis web manager 
• phpMemcachedAdmin
• FastCGI cleanup script
• OPcache: precompile php into in-memory bytecode
• Webgrind: XDebug frontend
• Anemometer: MySql slow query analyser
• RoundCube: webmail software
• Amavis: mail virus scanner
• SpamAssassin: mail spam filter
• ClamAV: antivirus

How to install EasyEngine?

wget -qO ee rt.cx/ee && sudo bash ee

What's we must use this? it saves time (automated install, automatic update), best practice (Nginx instead of Apache, HHVM/PHP7 instead of PHP5, caching), configuration backup (using Git)

For more information you can visit their website https://easyengine.io/

But wait kiz, you hate PHP right? why you endorse this?
at least this IS far better than poor performance/neglected/insecure/lousy crap configuration/choice that I always see in the past.

Prime Number Generator Benchmark

Today we're gonna benchmark about prime number generator (without sieve and prime library). The spec is generating all prime number below 10 million and outputting every 100k-th prime found. As usual, the source can be found on my dropbox (folder: prime). The benchmark performed on 64-bit Linux, i3-4150, 16GB RAM and non-SSD disk.

# desired output:
1299721
2750161
4256249
5800139
7368791
8960467

$ g++ --version
g++ (GCC) 4.9.2 20150204 (prerelease)
$ time g++ -std=c++11 prime.cpp
CPU: 0.20s      Real: 0.23s     RAM: 50232KB
$ time ./a.out
CPU: 2.94s      Real: 2.95s     RAM: 6592KB
$ time g++ -O2 -std=c++11 prime.cpp
CPU: 0.21s      Real: 0.23s     RAM: 51912KB
$ time ./a.out
CPU: 0.85s      Real: 0.85s     RAM: 6616KB

$ clang++ --version
clang version 3.5.1 (tags/RELEASE_351/final)
$ time clang++ -std=c++11 prime.cpp
CPU: 0.19s      Real: 0.23s     RAM: 46792KB
$ time ./a.out
CPU: 2.93s      Real: 2.94s     RAM: 6488KB
$ time clang++ -O2 -std=c++11 prime.cpp
CPU: 0.20s      Real: 0.22s     RAM: 50484KB
$ time ./a.out
CPU: 0.84s      Real: 0.84s     RAM: 6636KB

$ go version
go version go1.4.1 linux/amd64
$ time go build prime.go
CPU: 0.11s      Real: 0.12s     RAM: 30364KB
$ time ./prime
CPU: 2.48s      Real: 2.49s     RAM: 20412KB

$ javac -version
javac 1.7.0_75
$ time javac prime.java
CPU: 0.73s      Real: 0.44s     RAM: 47464KB
$ time java prime
CPU: 1.21s      Real: 1.18s     RAM: 104580KB

$ javac -version
javac 1.8.0_40
$ time javac prime.java
CPU: 0.96s      Real: 0.45s     RAM: 59860KB
$ time java prime
CPU: 1.23s      Real: 1.19s     RAM: 104716KB

$ ruby --version
ruby 2.1.5p273 (2014-11-13 revision 48405) [x86_64-linux]
$ time ruby prime.rb
CPU: 20.97s     Real: 20.99s    RAM: 14388KB

$ rbx --version
rubinius 2.5.2.c85 (2.1.0 e8a24276 2015-02-23 3.5.1 JI) [x86_64-linux-gnu]
$ time rbx prime.rb
CPU: 14.20s     Real: 14.15s    RAM: 54004KB

$ jruby --version
jruby 9.0.0.0-SNAPSHOT (2.2.0p0) 2015-02-24 2a3dc1f OpenJDK 64-Bit Server VM 24.75-b04 on 1.7.0_75-b13 +jit [linux-amd64]
$ time jruby prime.rb
CPU: 38.79s     Real: 36.41s    RAM: 298688KB

$ node --version
v0.10.36
$ time node prime.js
CPU: 1.61s      Real: 1.62s     RAM: 24796KB

$ pacman -Qo `which jsc-3`
/usr/bin/jsc-3 is owned by webkitgtk 2.4.8-1
$ time jsc-3 prime.js
CPU: 2.30s      Real: 2.31s     RAM: 22008KB

$ js24 --help| grep Version
Version: JavaScript-C24.2.0
$ time js24 prime.js
CPU: 1.19s      Real: 1.24s     RAM: 15488KB

$ echo | rhino
Rhino 1.7 release 4 2014 07 01
$ time rhino prime.js
CPU: 56.23s     Real: 55.72s    RAM: 873048KB

$ echo | jjs -version
nashorn 1.8.0_40
$ time jjs prime.js
CPU: 23.36s     Real: 22.28s    RAM: 448144KB

$ php --version
PHP 5.6.5 (cli) (built: Jan 22 2015 18:29:09) 
$ time php prime.php
CPU: 36.70s     Real: 36.77s    RAM: 111488KB

$ hhvm --version
HipHop VM 3.5.0 (rel) Compiler: 1422366928_067131079
$ time hhvm -v Eval.Jit=true prime.php 
CPU: 5.92s      Real: 11.14s    RAM: 98288KB

$ python --version
Python 3.4.2
$ time python prime.py
CPU: 78.33s     Real: 78.51s    RAM: 33476KB

$ pypy --version 
Python 2.7.8 (10f1b29a2bd2, Feb 05 2015, 16:50:17) [PyPy 2.5.0 with GCC 4.9.2 20141224 (prerelease)]
$ time pypy prime.py
CPU: 3.66s      Real: 4.14s     RAM: 84180KB

$ lua -v
Lua 5.2.3  Copyright (C) 1994-2013 Lua.org, PUC-Rio
$ time lua prime.lua
CPU: 22.16s     Real: 22.19s    RAM: 18628KB

$ luajit -v
LuaJIT 2.0.3 -- Copyright (C) 2005-2014 Mike Pall. http://luajit.org/
$ time luajit prime.lua
CPU: 6.64s      Real: 6.65s     RAM: 10360KB

$ mcs --version
Mono C# compiler version 3.12.0.0
$ time mcs prime.cs
CPU: 0.35s      Real: 0.36s     RAM: 39704KB
$ time mono prime.exe 
CPU: 1.78s      Real: 1.79s     RAM: 16368KB

$ dart --version
Dart VM version: 1.8.5 (Tue Jan 13 12:44:14 2015) on "linux_x64"
$ time dart prime.dart
CPU: 1.37s      Real: 1.38s     RAM: 31604KB

$ crystal --version
Crystal 0.6.1 [0162f84] (Mon Mar 16 15:22:20 UTC 2015)
$ time crystal prime.cr
CPU: 2.53s      Real: 2.62s     RAM: 28552KB
$ time crystal prime.cr --release
CPU: 1.18s      Real: 1.23s     RAM: 36784KB

$ julia --version
julia version 0.3.6
$ time julia prime.jl
CPU: 3.09s      Real: 3.12s     RAM: 71576KB

$ nim --version
Nim Compiler Version 0.10.2 (2014-12-31) [Linux: amd64]
$ time nim c prime.nim
CPU: 0.66s      Real: 0.69s     RAM: 44728KB
$ time ./prime
CPU: 7.65s      Real: 7.67s     RAM: 12224KB
$ time nim c -d:release prime.nim
CPU: 1.36s      Real: 1.36s     RAM: 55376KB
$ time ./prime
CPU: 2.44s      Real: 2.45s     RAM: 12160KB

$ rustc --version
rustc 1.0.0-dev (built 2015-02-23)
$ time rustc prime.rs
CPU: 0.36s      Real: 1.76s     RAM: 95960KB
$ time ./prime 
CPU: 3.75s      Real: 3.76s     RAM: 6196KB
$ time rustc -O prime.rs
CPU: 0.34s      Real: 0.38s     RAM: 96764KB

$ time ./prime 

CPU: 1.03s      Real: 1.04s     RAM: 6224KB

$ gnatmake --version
GNATMAKE 4.9.2 20150304 (prerelease)
$ time gnatmake prime.adb
CPU: 0.40s      Real: 0.44s     RAM: 51540KB
$ time ./prime
CPU: 5.85s      Real: 5.86s     RAM: 5488KB
$ rm prime prime.o prime.ali; time gnatmake -O2 prime.adb
CPU: 0.86s      Real: 0.91s     RAM: 57084KB
$ time ./prime
CPU: 1.27s      Real: 1.27s     RAM: 5348KB

$ fpc -version
Free Pascal Compiler version 2.6.4 [2014/03/12] for x86_64
$ time fpc prime.pas
CPU: 0.01s      Real: 0.02s     RAM: 10636KB
$ time ./prime
CPU: 3.42s      Real: 3.42s     RAM: 6688KB
$ time fpc -O2 prime.pas
CPU: 0.01s      Real: 0.02s     RAM: 10568KB
$ time ./prime
CPU: 3.00s      Real: 3.02s     RAM: 6688KB

And the summary:

Compiler / Interpreter	Language	Compile Duration	Compile RAM	Runtime Duration	Runtime RAM	Total Duration
g++	C++	200	50232	2940	6592	3140
g++ (-O2)	C++	210	51912	850	6616	1060
clang++	C++	190	46792	2930	6488	3120
clang++ (-O2)	C++	200	50484	840	6636	1040
go	Go	110	30364	2480	20412	2590
javac, java	Java	730	47464	1210	104580	1940
ruby	Ruby			20970	14388	20970
rbx	Ruby			14200	54004	14200
jruby	Ruby			38790	298688	38790
node	JavaScript			1610	24796	1610
jsc-3	JavaScript			2300	22008	2300
js24	JavaScript			1190	15488	1190
rhino	JavaScript			56230	873048	56230
jjs	JavaScript			23360	448144	23360
php	PHP			36700	111488	36700
hhvm	PHP			5920	98288	5920
python3	Python 3			78330	33476	78330
pypy	Python 2			3660	84180	3660
lua	Lua			22160	18628	22160
luajit	Lua			6640	10360	6640
mcs	C#	350	39704	1780	16368	2130
dart	Dart			1370	31604	1370
crystal	Crystal			2530	28552	2530
crystal (--release)	Crystal			1180	36784	1180
julia	Julia			3090	71576	3090
nim	Nimrod	660	44728	7650	12224	8310
nim (-d:release)	Nimrod	1360	55376	2440	12160	3800
rustc	Rust	360	95960	3750	6196	4110
rustc (-O)	Rust	340	96764	1030	6224	1370
gnatmake	Ada	400	51540	5850	5488	6250
gnatmake (-O2)	Ada	860	57084	1270	5348	2130
fpc	ObjectPascal	10	10636	3420	6688	3430
fpc (-O2)	ObjectPascal	10	10568	3000	6688	3010

Note #1: PH7 failed to give any output within 1 minute.
Note #2: IO failed to give complete output within 2 minutes.
Note #3: Nimrod caches the compile process, so the second time compile are less than 100ms
Note #4: Potion failed to give complete output within 2 minutes.
Note #5: Gnatmake caches the compile process, so the second time compile are less than 10ms, but it doesn't overwrite when different flag used (-O2 for example).
Note #6: Some languages can be compiled, and some other can be executed directly using certain command, but I choose one that I learned first (but I will benchmark both method when I have much free time)
Note #7: Compile cache deleted before every (3) benchmark run, the value taken are the median.

Changelog:
2015-03-03: benchmark published
2015-03-xx: Lua, C# (mcs), and Dart added
2015-03-17: Crystal, Julia, and Nimrod (nim) added
2015-03-18: ObjectPascal (fpc), Ada (gnat), and Nashorn (jjs) added

Numeric CombSort Benchmark update!

As I've written before, CombSort are quite good sort algorithm. Let's compare this algorithm when implemented in various programming language. The benchmark should not use any other built-in function other than array generation and printing. The benchmark uses AMD A8-6600K, 16GB RAM with Non-SSD disk.

$ alias | grep 'alias time'
alias time='/usr/bin/time -f "\nCPU: %Us\tReal: %es\tRAM: %MKB"'
$ time --version
GNU time 1.7

$ g++ --version
g++ (GCC) 4.9.2 20141224 (prerelease)
$ time g++ comb.cpp
CPU: 0.05s      Real: 0.12s     RAM: 19428KB
$ time ./a.out
CPU: 1.94s      Real: 1.97s     RAM: 79804KB
$ time g++ -O2 comb.cpp
CPU: 0.07s      Real: 0.11s     RAM: 21260KB
$ time ./a.out
CPU: 0.88s      Real: 0.90s     RAM: 79804KB

$ clang --version
clang version 3.5.1 (tags/RELEASE_351/final)
$ time clang++ comb.cpp
CPU: 0.05s      Real: 0.08s     RAM: 33564KB
$ time ./a.out
CPU: 1.83s      Real: 1.86s     RAM: 79764KB
$ time clang++ -O2 comb.cpp
CPU: 0.08s      Real: 0.14s     RAM: 37860KB
$ time ./a.out
CPU: 0.89s      Real: 0.91s     RAM: 79804KB

$ java -version

java version "1.7.0_71" 

$ time javac comb.java
CPU: 1.05s      Real: 0.73s     RAM: 65952KB

$ time java comb

CPU: 1.32s      Real: 1.32s     RAM: 110488KB

$ php --version
PHP 5.6.4 (cli) (built: Dec 17 2014 21:45:04)
$ time php comb.php
CPU: 102.69s    Real: 104.20s   RAM: 2497508KB

$ hhvm --version
HipHop VM 3.5.0 (rel)

$ time hhvm -v Eval.Jit=true comb.php 

CPU: 12.56s     Real: 14.83s    RAM: 362488KB

$ ruby --version

ruby 2.2.0p0 (2014-12-25 revision 49005) [x86_64-linux]

$ time ruby comb.rb

CPU: 52.87s     Real: 53.02s    RAM: 87892KB

$ rbx --version
rubinius 2.5.2 (2.1.0 7a5b05b1 2015-01-30 3.5.1 JI) [x86_64-linux-gnu]
$ time rbx comb.rb
CPU: 74.89s     Real: 74.30s    RAM: 135320KB

$ node --version

v0.10.35

$ time node comb1.js

CPU: 2.64s      Real: 2.64s     RAM: 92240KB

$ time node comb2.js
CPU: 2.68s      Real: 2.72s     RAM: 140612KB

$ rhino < /dev/null 
Rhino 1.7 release 4 2014 07 01
$ rhino comb2.js
CPU: 87.39s     Real: 61.16s    RAM: 1993848KB

$ pacman -Qo `which jsc-3`
/usr/bin/jsc-3 is owned by webkitgtk 2.4.8-1
$ time jsc-3 comb1.js
CPU: 23.74s     Real: 23.93s    RAM: 93740KB
$ time jsc-3 comb2.js
CPU: 18.99s     Real: 19.16s    RAM: 181644KB

$ js24 --help | grep Version
Version: JavaScript-C24.2.0
$ time js24 --ion-eager comb1.js
CPU: 2.13s      Real: 2.15s     RAM: 89688KB
$ time js24 --ion-eager comb2.js
CPU: 1.53s      Real: 1.58s     RAM: 92384KB

$ go version

go version go1.4.1 linux/amd64

$ time go build comb.go 

CPU: 0.14s      Real: 0.17s     RAM: 31568KB

$ time ./comb

CPU: 1.10s      Real: 1.14s     RAM: 79824KB

$ rustc --version
rustc 1.0.0-dev
$ time rustc comb.rs
CPU: 0.39s      Real: 0.49s     RAM: 106844KB
$ time ./comb
CPU: 10.62s     Real: 10.71s    RAM: 86020KB
$ time rustc -O comb.rs
CPU: 0.41s      Real: 0.49s     RAM: 110204KB
$ time ./comb
CPU: 0.97s      Real: 0.99s     RAM: 86108KB

$ scala -version
Scala code runner version 2.11.5 -- Copyright 2002-2013, LAMP/EPFL
$ time scala comb.scala
CPU: 5.43s      Real: 6.30s     RAM: 206088KB
$ time scalac comb.scala
CPU: 10.62s     Real: 7.00s     RAM: 143460KB
$ time scala Comb
CPU: 5.49s      Real: 5.05s     RAM: 206300KB

$ python --version
Python 3.4.2
$ time python comb1.py
CPU: 90.47s     Real: 90.83s    RAM: 403192KB
$ time python comb2.py
CPU: 106.82s    Real: 107.26s   RAM: 87248KB

$ pypy --version
Python 2.7.8 (c6ad44ecf5d8, Nov 18 2014, 18:04:31) [PyPy 2.4.0 with GCC 4.9.2]
$ time pypy comb1.py
CPU: 5.34s      Real: 5.40s     RAM: 136764KB
$ time pypy comb2.py
CPU: 5.85s      Real: 6.04s     RAM: 204588KB

$ mcs --version
Mono C# compiler version 3.12.0.0
$ time mcs -o+ comb.cs
CPU: 0.44s      Real: 0.47s     RAM: 45908KB
$ time ./comb.exe
CPU: 1.38s      Real: 1.41s     RAM: 90472KB

$ lua -v
Lua 5.2.3  Copyright (C) 1994-2013 Lua.org, PUC-Rio
$ time lua comb.lua
CPU: 65.64s     Real: 65.81s    RAM: 264096KB

$ luajit -v
LuaJIT 2.0.3 -- Copyright (C) 2005-2014 Mike Pall.
$ time luajit comb.lua
CPU: 6.30s      Real: 6.34s     RAM: 132964KB

$ dart --version
Dart VM version: 1.8.5 (Tue Jan 13 12:44:14 2015) on "linux_x64"
$ time dart scomb.dart
CPU: 2.12s      Real: 2.24s     RAM: 93392KB

The code can be found on my dropbox (folder: num-comb), and here's the summary:

Compiler / Interpreter	Language	Compile Duration	Compile RAM	Runtime Duration	Runtime RAM	Total Duration
g++ (debug)	C++	50	19428	1940	79804	1990
g++ (-O2)	C++	70	21260	880	79804	950
clang++ (debug)	C++	50	33564	1830	79764	1880
clang++ (-O2)	C++	80	37860	890	79804	970
javac, java	Java	1050	65952	1320	110488	2370
php	PHP			102690	2497508	102690
hhvm	PHP			12560	362488	12560
ruby	Ruby			52870	87892	52870
rbx	Ruby			74890	135320	74890
node (typed array)	Javascript			2640	92240	2640
node (untyped array)	Javascript			2680	140612	2680
rhino (untyped array)	Javascript			87039	1993848	87039
jsc-3 (typed array)	Javascript			23740	93740	23740
jsc-3 (untyped array)	Javascript			18990	181644	18990
js24 (typed array)	Javascript			2130	89688	2130
js24 (untyped array)	Javascript			1530	92384	1530
go	Go	140	31568	1100	79824	1240
rustc (debug)	Rust	390	106844	10620	86020	11010
rustc (-O2)	Rust	410	110204	970	86108	1380
scala	Scala			5430	206088	5430
python3	Python 3			90470	403192	90470
python3 (array)	Python 3			106820	87248	106820
pypy	Python 2			5340	136764	5340
pypy (array)	Python 2			5850	204588	5850
mcs	C#	440	45908	1380	90472	1820
lua	Lua			65640	264096	65640
luajit	Lua			6300	132964	6300
dart	Dart			2120	93392	2120

Write down your opinion (or pastie if you found a bug on these source, or if you want to add more language implementation) on the comment section ^^)b

Note #1: Opal (0.6.8) and JRuby (both 1.7.18 and 9.0.0pre1) failed to run this benchmark (they exceed 300s runtime limit even when using -J-Xmx3000M -J-Djruby.compile.mode=FORCE flag).

Note #2: Yes, it's unfair to compare array of integer and array of double, life is unfair by design, get over it...