I want to write software that helps kill people.
Please, before you call the police and get my github account put on lockdown, allow me a moment to explain. What I really want to do is work on projects that advance the human condition and improve people's lives. I've been in a mad dash to learn how to program for the past four or five years exactly because I realized how much good I could do for the world with a computer.
| //imports | |
| appjs : import = js/app.js | |
| core: import = light/core.js | |
| html: import = light/html.js | |
| easeljs : import = js/easel.js | |
| //references | |
| application:@ = core.application | |
| event:@ = core.listener | |
| hc:@ = html.canvas |
| /** | |
| * To compile: | |
| * scalac -optimize ByteBufferPerf.scala | |
| * | |
| * JAVA_OPTS="-Xmx2g" scala IntArrayPerf 10 | |
| * 49 62 48 45 48 45 48 50 47 45 | |
| * | |
| * JAVA_OPTS="-Xmx2g" scala ByteBufferPerf 10 | |
| * 479 491 484 480 484 481 477 477 472 473 |
| #ifndef MERGE_NODE_ALGORITHM_HPP | |
| #define MERGE_NODE_ALGORITHM_HPP | |
| template <class T> | |
| class MergeNodeAlgorithm { | |
| public: | |
| virtual bool empty() const = 0; | |
| virtual void pop() = 0; | |
| virtual T get() const = 0; |
| deps: | |
| brew install md5sha1sum automake snappy hadoop | |
| tweak OS X: | |
| # export JAVA_HOME=$(/usr/libexec/java_home) | |
| hack jvm: | |
| # sudo mkdir -p ${JAVA_HOME}/lib/{i386,x86_64}/server | |
| # sudo ln -s ${JAVA_HOME}/{../Libraries,lib/i386/server}/libjvm.dylib | |
| # sudo ln -s ${JAVA_HOME}/{../Libraries,lib/x86_64/server}/libjvm.dylib |
| set pc, kernel_start | |
| :clock | |
| dat 0xffff | |
| :get_hardware; () -> void | |
| hwn i | |
| .loop | |
| sub i, 1 | |
| hwq i |
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns
Compress 1K bytes with Zippy ............. 3,000 ns = 3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns = 20 µs
SSD random read ........................ 150,000 ns = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs
| package sync | |
| import ( | |
| "sync" | |
| "sync/atomic" | |
| ) | |
| type nullLocker struct {} | |
| func (n *nullLocker) Lock() {} |
| #include <stdio.h> | |
| #define CONFIG_FOO 1 | |
| #define CONFIG_NOO 0 | |
| #define is_set(macro) is_set_(macro) | |
| #define macrotest_1 , | |
| #define is_set_(value) is_set__(macrotest_##value) | |
| #define is_set__(comma) is_set___(comma 1, 0) | |
| #define is_set___(_, v, ...) v |