qinwf

挂SS吧，或者用香港的DNS 218.102.23.228

qinwf

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

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➜  deck.gl git:(master) ✗ npm run demo-build

> deck.gl@3.0.0 demo-build /Users/qinwf/git/deckr/deck.gl
> npm run demo-build-clean && npm run demo-build-copy && npm run demo-build-script


> deck.gl@3.0.0 demo-build-clean /Users/qinwf/git/deckr/deck.gl
> rm -fr dist-demo && mkdir -p dist-demo

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## Copy this file into config.site ##
CC="cc -xc99"
CPPFLAGS="-I/opt/csw/include"
CFLAGS="-I/opt/csw/include -O -xlibmieee"
LDFLAGS="-L/opt/csw/lib"
F77=f95
FFLAGS=-O
CXX="CC -library=stlport4"
CXXFLAGS=-O
FC=f95

qinwf

// create an IAM Lambda role with access to dynamodb
// Launch Lambda in the same region as your dynamodb region
// (here: us-east-1)
// dynamodb table with hash key = user and range key = datetime

console.log('Loading event');
var AWS = require('aws-sdk');
var dynamodb = new AWS.DynamoDB({apiVersion: '2012-08-10'});

exports.handler = function(event, context) {

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library(prof)

library(re2r)
library(stringi)
strs = rep(c("this is test",  "this is test, and this is not test", "they are tests"),1000000)
start_profiler("sample.log")
invisible(re2_match_all(input = strs, pattern = "(this)( is)"))
#invisible(stri_match_all(strs, regex = "(this)( is)"))
stop_profiler()
# google-pprof --text  /home/out/R/x86_64-pc-linux-gnu-library/3.2/re2r/libs/re2r.so  sample.lo

qinwf

Getting shit to work

Disclaimers

• No authority
• Official reference is writing r extentions (joke extentions)
• If you thought writing regular r packages was tricky, hold on

qinwf

IE 7/8/9/10/11 Virtual machines from Microsoft

Linux installation notes (tested under Ubuntu 14.04LTS/12.04LTS), assuming VirtualBox is already installed on host.

• Install notes
• Available images
  • IE7 - Vista Enterprise
  • IE8 - XP
  • IE9 - Win7
  • IE10 - Win7
  • IE10 - Win8

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How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev

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Code Reuse in Rust

• Basic features
• Function
• Major strategies
  • Monomorphization
  • Virtualization
  • Enumeration