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# Andy Tillandytill

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Last active Aug 29, 2015 — forked from cannedprimates/bench.erl
View bench.erl
 -module(bench). -compile(export_all). %% Luke Gorrie's favourite profiling macro. -define(TIME(Tag, Expr), (fun() -> %% NOTE: timer:tc/4 does an annoying 'catch' so we %% need to wrap the result in 'ok' to be able to %% detect an unhandled exception. {__TIME, __RESULT} =
Created Oct 1, 2014
DirtyLittlePhysics Engine.java
View Engine.java
 public class Engine { final static int MAX_NUM_OF_PARTICLES = 200000; Vect3D gravity; double drag; int NUM_OF_PARTICLES; Particle particles[];
Last active Aug 29, 2015
Probability of Project Success
View Probability of Project Success.md

# Quiz

There are ten tasks in a project and they all need to be completed within their estimate for the project to be delivered on time. Each task has a 10% chance that is mis-estimated and will take longer.

#### What is the probability that the project will be delivered on time?

If a task has a 10% chance of being late it has a 90% (0.9) probability of success. Probability of multiple events is calculated by multiplying all the probabilties: `0.9 * 0.9 * 0.9` etc. In the contrived example where all probabilites are the same we can do a simple power of:

`Eshell V5.10.2  (abort with ^G)`
Created Jun 15, 2015
.tmux.config
View .tmux.config
 # set prefix key to Ctrl-a unbind-key C-b set-option -g prefix C-a # set the window index to base 1 set -g base-index 1 setw -g pane-base-index 1 # Highlight active window
Last active Aug 29, 2015
Sublime Text Settings (OSX)
View Default (OSX).sublime-keymap
 [ { "keys": ["ctrl+forward_slash"], "command": "toggle_comment", "args": { "block": false } }, { "keys": ["ctrl+alt+forward_slash"], "command": "toggle_comment", "args": { "block": true } }, { "keys": ["f3"], "command": "goto_definition" }, { "keys": ["super+alt+r"], "command": "reveal_in_side_bar" } ]
Last active Aug 29, 2015
xref riak_object usage
View riak_object_usage.erl
 xref:start(lol). [xref:add_directory(lol, Dir) || Dir <- code:get_path()]. Exports = riak_object:module_info(exports). Analyze_fn = fun({F,A}) -> {ok, Use} = xref:analyze(lol, {use, {riak_object, F, A}}), Use end. [{{riak_object,F,A}, Analyze_fn(FA)} || {F,A} = FA <- Exports, F =/= module_info].
Created Jul 19, 2015
horsetheperfs output
View horsetheperfs output
 erlang_spawn_1:spawn_sleep_fun_on_one_proc in 1.057355s erlang_spawn_1:spawn_fun_on_one_proc in 0.246039s erlang_spawn_link_1:spawn_link_sleep_fun_on_one_proc in 1.132972s erlang_spawn_link_1:spawn_link_fun_on_one_proc in 0.421424s erlang_split_binary_2:split_binary_small_2 in 0.004270s erlang_split_binary_2:split_binary_large_2 in 0.004266s erlang_split_binary_2:split_binary_very_large_2 in 0.004171s erlang_split_binary_2:syntax_split_binary_small_2 in 0.016963s erlang_split_binary_2:syntax_split_binary_large_2 in 0.019240s erlang_split_binary_2:syntax_split_binary_very_large_2 in 0.018668s
Created Jul 22, 2015
proc pooling benchmarks
View proc pooling benchmarks.txt
 processing_in_pools options: ?ITERATIONS: 10000 ?KV_SIZE: 500 ?PRE_SIZED_HEAP: 4400 scheduler_bind_type: no_node_thread_spread schedulers_online: 4 processing_in_pools:temporary_workers in 10.226417s processing_in_pools:temporary_workers_with_pre_sized_heaps in 10.378222s
Created Sep 9, 2015
Erlang macro to run some eunit test code inside its own process and wait for that process to complete before returning. This is useful when testing resources which get cleaned up when the current process completes like ets tables.
View in_process_macro.erl
 %%% MACRO -define(in_process(TestCode), Self = self(), spawn_link( fun() -> TestCode, Self ! test_ok end), receive
Last active Sep 22, 2015 — forked from kuenishi/gen_fsm_visualizer.erl
View gen_fsm_visualizer.erl