Roassal presentation

Roassalturn your programming environment into a

beauty center for objects

Vanessa PeñaCamilo Gomez

Alexandre Bergel

Object Profile & University of Chile

Roassal

Advanced visualization engine

Useful to draw pictures of your data

Well modularized Easily portable (Pharo, VisualWorks, Amber, ...)

Few external dependencies

Open source (MIT)

view nodes: Collection withAllSubclasses.

view nodes: Collection withAllSubclasses.

view nodes: Collection withAllSubclasses.view edgesFrom: #superclass.

view nodes: Collection withAllSubclasses.view edgesFrom: #superclass.view treeLayout

view shape rectangle ! width: #numberOfVariables;! height: #numberOfMethods.view nodes: Collection withAllSubclasses.view edgesFrom: #superclass.view treeLayout

DEMO

Roassal architecture & model

Pharo, VW, Amber

Roassal

Mondrian

Your application

GraphicalElement

shape1 shape2 shape3

interactiondictionary

#executions

execution time

gray = side effectyellow = no side effect

A

B

D

C

E

F

1

2

3Method 1 calls Method 2.Method 3 calls Method 1

Profiling blueprint

10

Profiling blueprint

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#executions

execution time

gray = side effectyellow = no side effect

A

B

D

C

E

F

1

2

3Method 1 calls Method 2.Method 3 calls Method 1

methods that takes times, are executed many times,

and without significant side effect

Adding a memoization

ROElement>>bounds! "Return the bounds of the element"

! boundsCache ifNotNil: [ ^ boundsCache ].

! ^ boundsCache := self position extent: (shape extentFor: self)

Adding a memoization

ROElement>>bounds! "Return the bounds of the element"

! boundsCache ifNotNil: [ ^ boundsCache ].

! ^ boundsCache := self position extent: (shape extentFor: self)

Effect of the memoization

14

AB C D

cached

absoluteBoundsmake display:on:

call absoluteBoundsinstead of absoluteBoundsFor:

A'

C'

B'

C'

15

16

Execution profiling blueprints. So!ware: Practices and Experience, 2012Visualizing Dynamic Metrics with Profiling Blueprints. Proceedings of the TOOLS, 2010Counting Messages as a Proxy for Average Execution Time in Pharo. Proceedings of ECOOP, 2011Identifying Optimization Opportunities by Visualizing So!ware Execution. To be submitted to CACM

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VisuAuleVisual code inspector

By Camilo during the ‘show us your project’ session

Join us!

We have positions Interships

Engineering

Master

PhD

Deadline is the end of this month

Santiago is a cool city! no mosquitos!

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Spy @ Cincom StoreSpy @ SqueakSourceSpy @ ...

Thanks to all of you guys!