High Performance Android (Google Developer Group Los Angeles, August 20, 2015)

Talk given at General Assembly in Santa Monica, CA by Mark Scheel

Transcript

1. H I G H P E R F O R M A N C E A N D R O I D M A R K S C H E E L ( @ 5 2 8 0 M A R K ) #highperfandroid Los Angeles, USA - August 20, 2015
2. B E A U T I F U L S N O W F L A K E S
3. P E R F O R M A N C E • Merriam Webster - “the execution of an action” • So what is “High Performance”? #highperformance
5. P E R F O R M A N C E S U M M A RY • Build Systems • Size matters • First impressions • Tools from Google #highperfandroid
6. B U I L D S Y S T E M S • Consistent • Repeatable • Consistable #consistable
7. B U I L D S Y S T E M S #consistable
9. VA G R A N T • Vagrant is software that creates and configures virtual development environments • Virtual Box, and now VmWare, KVM and Amazon EC2 • Written in Ruby by Mitchell Mashimoto • November 2014 added Docker support #consistable
10. VA G R A N T • Recipe is called “Vagrantfile” • You can create reproducible and portable environments, excellent for experimentation AND sharing • A single file defines the machine, can be checked into source control • No more “works on my machine” #consistable
11. VA G R A N T • Learn more at vagrantup.com • $ vagrant up • $ vagrant ssh • $ vagrant halt • $vagrant destroy #consistable
13. J E N K I N S • Java based, forked from Hudson after Oracle drama • Continuous Integration software • Monitors execution of builds • Makes it easy for anyone to make a build, turn source into product #consistable
15. J E N K I N S • Pro Tip: Install in a container, avoid service sludge • Pro Tip: Name your jobs consistently • Pro Tip: Clean your workspace! • Pro Tip: Have a process for broken builds #consistable
17. J E N K I N S • Jenkins builds can be triggered by a commit or many other triggers (cron, etc) • Consistently and repeatedly build your project the same way • Started by Kohsuke Kawaguchi #consistable
18. J E N K I N S • Plugin Support • Publish to Play Store (Google Publish) • Git • Gradle • Credentials Binding (secrets) • Findbugs • Android emulator • Android Lint • Checkstyle • DRY • PMD - like findbugs, analyzes byte code for potential glitches • Warnings - Displays compiler warnings • Static Code Analysis - Compiles many of above and puts into a graph #consistable
19. J E N K I N S • Slaves - can be docker instances • Master Slave model allows many builds from one master • Slaves can be local, remote, containers etc #consistable
21. D O C K E R • Initially written in Go by Solomon Hykes • Docker automates the deployment of applications inside software containers, by providing an additional layer of abstraction and automation of operating-system-level virtualization on Linux. • Docker uses resource isolation features of the Linux kernel such ascgroups and kernel namespaces to allow independent "containers" to run within a single Linux instance, avoiding the overhead of starting and maintaining virtual machines #consistable
22. D O C K E R • Build, Ship, Run • Make your SysAdmin or Ops guy happy • Great for apps with distributed resources
23. D O C K E R #consistable
24. #consistable
25. D O C K E R • Won’t run on Mac out of the box, OS X doesn’t support system-level virtualization even though BSD has jails • boot2docker or run inside vagrant Ubuntu • Google still supports, even though Kubernetes • Learn more - docker.com #consistable
26. VA G R A N T A N D D O C K E R • Mac is host • It has Vagrant inside of it • inside of Vagrant /vagrant maps to host folder where Vagrantfile is • Can map from inside Docker to /vagrant with commands like: • docker run -v $WORKSPACE:/host:rw android_test_image bash -c "sh ./create-orders-json.sh && cp /usr/src/app/ order.json /host" #consistable
27. M O R E T O O L S • Espresso for integration testing • Google Cloud Test Lab and AWS Device Farm • TestFairy • Alpha and Beta Release channels #consistable
28. #consistable
29. E N D T O E N D • Consistent repeatable systems • Building software regularly • Saving artifacts of build process for postmortems • Regular testing reports, unit and integration • And regularly deploy to testers #consistable
30. P E R F O R M A N C E S U M M A RY • Build Systems • Size matters • First impressions • Tools from Google #highperfandroid
31. S I Z E M AT T E R S #highperfandroid
32. S I Z E M AT T E R S • https://code.facebook.com/posts/991252547593574 • re-imagination of JPEG headers • August 6, 2015 #highperfandroid
33. S I Z E M AT T E R S #highperfandroid
34. S I Z E M AT T E R S #highperfandroid
35. S I Z E M AT T E R S #highperfandroid
36. P E R F O R M A N C E S U M M A RY • Build Systems • Size matters • First impressions • Tools from Google #highperfandroid
37. F I R S T I M P R E S S I O N S #highperfandroid
38. F I R S T I M P R E S S I O N S #highperfandroid
39. F I R S T I M P R E S S I O N S • compare against other apps (benchmark) • does not work on native code yet (many games) • nimbledroid.com — currently free #highperfandroid
40. P E R F O R M A N C E S U M M A RY • Build Systems • Size matters • First impressions • Tools from Google #highperfandroid
41. T O O L S F R O M G O O G L E • View Hierarchy Profiling (using Hierarchy Viewer) • Profile GPU Rendering • Overdraw Visualization • Systrace • Memory Monitor • Heap Viewer • Allocation Tracker #highperfandroid
42. V I E W H I E R A R C H Y P R O F I L I N G #highperfandroid
43. P R O F I L E G P U R E N D E R I N G #highperfandroid
44. O V E R D R A W V I S U A L I Z AT I O N #highperfandroid
45. S Y S T R A C E #highperfandroid
46. M E M O RY M O N I T O R #highperfandroid
47. H E A P V I E W E R #highperfandroid
48. A L L O C AT I O N T R A C K E R #highperfandroid
49. P E R F O R M A N C E S U M M A RY • Build Systems • Size matters • First impressions • Tools from Google #highperfandroid
50. B E A U T I F U L S N O W F L A K E S
51. P E R F O R M A N C E • Merriam Webster - “the execution of an action” • So what is “High Performance”? #highperformance
52. H I G H P E R F O R M A N C E
53. H I G H P E R F O R M A N C E A N D R O I D M A R K S C H E E L ( @ 5 2 8 0 M A R K ) #highperfandroid Los Angeles, USA - August 20, 2015
54. M A R K S C H E E L • @5280mark on Twitter • Open Source Contributions to google-glass and square • Colorado • digitalconstruction.com
55. U P C O M I N G TA L K S • Big Android BBQ • 10/22-10/23, Dallas, TX • Denver Startup Week • 9/28 - 10/2 Denver, CO • Paris • November 2015 #highperfandroid
56. F O L L O W M E O N T W I T T E R • @5280mark • let’s continue the conversation #highperfandroid