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;; The macros | |
;; most macros here alias names from select.cljs | |
;; they will get used in regular calls | |
(ns lib.select | |
(:require | |
[clojure.string :as str])) | |
;; selector syntax | |
(defn intersection [preds] |
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#!perl | |
# Display a bubble chart of DB tables, with rows and relationships to other tables | |
# Either run directly: perl bubble.pl | |
# Or with Plack: plackup bubble.pl | |
use strict; use warnings; | |
# cpanm Dancer Template DBIx::Class::Schema::Loader Data::Google::Visualization::DataTable | |
use Dancer; |
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class HealthCheck | |
class Middleware | |
def initialize(application) | |
@application = application | |
end | |
def call(environment) | |
if environment['PATH_INFO'] == '/health-check' | |
if HealthCheck.healthy? |
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# Install MacTex: http://mirror.ctan.org/systems/mac/mactex/mactex-basic.pkg | |
$ sudo chown -R `whoami` /usr/local/texlive | |
$ tlmgr update --self | |
$ tlmgr install ucs | |
$ tlmgr install etoolbox | |
# Install pandoc view homebrew |
This benchmark has been misleading for a while. It was originally made to demonstrate how JIT compilers can do all sorts of crazy stuff to your code - especially LuaJIT - and was meant to be a starting point of discussion about what exactly LuaJIT does and how.
As a result, its not indicative of what its performance may be on more realistic data. Differences can be expected because
- the text will not consist of hard-coded constants
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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 |
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#!/bin/bash | |
function actual_path() { | |
if [ [ -z "$1" ] -a [ -d $1 ] ]; then | |
echo $(cd $1 && test `pwd` = `pwd -P`) | |
return 0 | |
else | |
return 1 | |
fi | |
} |
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require 'action_dispatch/middleware/static' | |
module Middleware | |
class FileHandler < ActionDispatch::FileHandler | |
def initialize(root, assets_path, cache_control) | |
@assets_path = assets_path.chomp('/') + '/' | |
super(root, cache_control) | |
end | |
def match?(path) |