Mining Massive Datasets

Core Animation in Practice, Part 1Graphics & MediaiOS
Core Animation in Practice, Part 1 Core Animation is the layer-based animation system that powers the dynamic user experience seen in iPhone OS. See Core Animation in action and learn about its architecture, capabilities, and best practices. Learn how to combine the familiar capabilities of UIKit, Quartz 2D, and OpenGL ES with the power of Core Animation layers and animation. Download: HD | SD    | PDF System Requirements
To watch the streaming version of this video, use the latest version of Safari on a Mac running OS X Lion or later. Alternatively, you can download this video in HD and SD.
Core Animation in Practice, Part 2Graphics & MediaiOS

WWDC 2010 Session 123 – Building Animation Driven Interfaces
WWDC 2010 Session 424 – Core Animation in Practice, Part 1
WWDC 2010 Session 425 – Core Animation in Practice, Part 2

https://developer.apple.com/videos/wwdc/2011/#421

• Core Animation Essentials
• Graphics, Media, & Games
• iOS, OS X

2011년 강의로 기초 공부

[CATransactionAnimation setDuration:2];

만으로도 animation을 실행한다.

CAAction protocol

implicit animation이 싫을 땐,

[CATransactionAnimation setDisableActions:YES];

hitTest screen value를 얻을 땐, presentationLayer를 이용하기

Bitmap cache 얘기 같은 것 듣고 싶었는데, 발표자가 시간이 모자랐는지 그냥 넘어가네..

Replicators라는 것도 있네. 변화를 여러 replicator instances에 조금씩 반영?

Particles는 ios5부터. CAEmitterLayer

이것도 쓸 일은 없겠다.

WWDC 2011 Video: Understanding UIKit rendering
WWDC 2012 Video: iOS App performance: Graphics and Animations

drawRect: layer.contents backing store

CA::Layer::layout_and_display_if_needed(CA::Transaction*)

https://developer.apple.com/videos/wwdc/2014/#419

• Advanced Graphics and Animations for iOS Apps
• Tools
• iOS

Layout --> Display --> Prepare --> Commit

layout: CPU, IO

display= drawRect, string drawing: CPU, memory

prepare= image decoding

commit= package up layers and send to render server

1. animateWithDuration 
2. layoutSubviews
3. Render each frame
   

Command buffer --> Tiler (vertex processing, tiling) --> Parameter buffer --> Render (pixel shader) --> Render buffer

를 연속적으로 pipelining

16.67ms

gpu context switch때문에 gpu idle time이 생기곤 한다.

shouldRasterize

extra offscreen passes when updating content -->> 정적인 content에 쓰기

cache size는 2.5x of screen size에 한정돼있으니까 overuse하지 말기.

rasterized images는 100ms 이상 동안 안쓰인다면 evicted from cache

Tools

performance issue가 있다면, 생각해 보자

1. frame rate = 60 frame/sec
2. CPU or GPU bounds
3. GPU desirable > CPU
4. fewer offscreen passes
5. less blending
6. Dont use strange image formats
7. visual effects costs
8. view hierarchy

Instruments

Core animation instrument, OpenGL ES drivier instrument

color blended layers에 check하면, 얼마나 겹쳐 있는지 알 수 있다.

color hit green and ... red: cache 안돼있을 때 빨갛게 표시

color copied images: 지원 안하는 color format 때문에 시간 걸릴 때

color misaligned image

color offscreen yellow

2012, 2013 년에는 mac os x Cocoa Animation

• Best Practices for Cocoa Animation
• Frameworks
• OS X

https://developer.apple.com/videos/wwdc/2012/

Layer-Backed Views: AppKit + Core Animation Essentials OS X
Layer-Backed Views: AppKit + Core AnimationPlay Learn how to effectively use layer-backed views in AppKit to...

한편, 그리기 video가 너무 없네.

https://developer.apple.com/videos/wwdc/2011/#129

Practical Drawing for iOS DevelopersApp FrameworksiOS

coursera에

https://www.coursera.org/course/pythonlearn

University of Michigan
Programming for Everybody (Python)
This course aims to teach everyone to learn the basics of programming computers using Python. The course has no pre-requisites and avoids all but the simplest mathematics. Anyone with moderate computer experience should be able to master the materials in this course.


Watch Intro Video

그 외에도 4개 있는데, 지금은 안 열렸네.

University of Toronto
Learn to Program: The Fundamentals
with Jennifer Campbell & Paul Gries
There are no open sessions.

Rice University
An Introduction to Interactive Programming in Python
with Joe Warren, Scott Rixner, John Greiner &
There are no open sessions.

Stanford University & Universitat Pompeu Fabra of Barcelona
Audio Signal Processing for Music Applications
with Prof Xavier Serra & Prof Julius O Smith, III
There are no open sessions.

University of Washington
High Performance Scientific Computing
with Dr. Randall J. LeVeque
There are no open sessions.

itunes에는

Hands-On Python Tutorial - Chapter 1 Loyola University Chicago Hands-On Python Tutorial - Chapter http://deimos3.apple.com/WebObjects/Core.woa/Feed/luc.edu-dz.8736070708.08736070710

https://www.edx.org/course?search_query=python

Introduction to Computer Science and Programming Using Python
VERIFIED
MITx
6.00.1x
Introduction to Computer Science and Programming Using Python

Current
Starts: January 7, 2015
Introduction to Big Data with Apache Spark
VERIFIED
UC BerkeleyX
CS100.1x
Introduction to Big Data with Apache Spark

Starting Soon
Starts: February 23, 2015
Data analysis to the MAX()
DelftX
EX101x
Data analysis to the MAX()

Upcoming
Starts: April 6, 2015
Introduction to Functional Programming
VERIFIED
DelftX
FP101x
Introduction to Functional Programming

Archived
Starts: October 15, 2014
Introduction to Computational Thinking and Data Science
VERIFIED
MITx
6.00.2x
Introduction to Computational Thinking and Data Science

Starting Soon
Starts: March 4, 2015
Autonomous Navigation for Flying Robots
TUMx
AUTONAVx
Autonomous Navigation for Flying Robots

Archived
Starts: May 6, 2014
Quantitative Biology Workshop
VERIFIED

7개나 있다.

그 외에도 udacity 등에서 찾아보기.

google 것

https://developers.google.com/edu/python/

• Python Course
• C++ Course

https://developer.apple.com/library/prerelease/ios/documentation/DeveloperTools/Conceptual/testing_with_xcode/Introduction/Introduction.html

Testing in Xcode 6
Tools
iOS, OS X
Testing in Xcode 6
Session 414
Play
 
Unit testing is an essential tool to consistently verify your code works correctly. Learn how Xcode 6 takes this to the next level with support for performance testing, baselining, and integration with Xcode bots to continually monitor your performance over time and devices.
Download: HD | SD | PDF

1. command u로 실행하거나
2. side bar에서 하나씩 버튼 눌러서 실행하거나
3. command로 실행

demo를 objective c로 보여주네. swift를 기대했는데..

OCUnit은 Xcode 5.1부터 deprecated됐다.

Asynchronous testing

test case 1개씩 profiling하는 것도 쓸만 하겠다.

measureBlock은 여러 번 실행하고 실행시간 평균과 standard deviation 등을 계산해 주나 보다.

Testing in Xcode 5ToolsiOS, OS X
Testing in Xcode 5Session 409Play Unit testing is an essential tool to consistently verify that your code works correctly. Learn how Xcode 5 makes it dramatically easier to create, edit, execute, and understand your tests. Download: HD | SD     | PDF

unit testing 얘기부터 시작

XCTest가 Xcode5부터 나왔나보네.

Test Navigator 등은 이 때 더 잘 설명해줬었다.

xcode server에서 test실행하는 것을 local xcode에서 할 수 있는 건가