smalltalk perspectives, by arden thomas

7/28/2019 Smalltalk Perspectives, by Arden Thomas

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Smalltalk PerspectivesArden Thomas

Cincom Smalltalk Product manager


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Talks

Arden Thomas: Perspectives on SmalltalkMonday @ 4:30 PM

Arden Thomas: Cincom Smalltalk RoadmapWednesday @ 9:30 AM (Sachem East)

Dirk Verleysen and Andreas Hiltner:Cincom ObjectStudio: New Native GUIImplementation PreviewA Technical OverviewWednesday @ 10:45 AM (Sachem East)

Les Kooyman: Internationalization inCincom VisualWorks Wednesday @ 1:45 PM(Sachem East)


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Contents

The Smalltalk of:

Poly, MatriX and Green

Smalltalk Performance

Innovation

Afternoon Projects

Advocacy

Learn Something New!


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The Smalltalk of

What is a Smalltalk theme?

Less is more

Minimal needed, no fluff

Most done with least

Simple, robust and effective

Underappreciated


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The Smalltalk of

Knots?


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The Smalltalk of Knots

The Zeppelin Knot(actually a bend) Best in class bend used to

tie down airships

Almost forgotten!

Beautiful symmetrical

Simple (basically twooverhand bends)

Strong, secure,outstanding in use

Rediscovered!


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The Smalltalk of

Supercars


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The Smalltalk of Supercars

McClarenF1 Buggati Veyron 4 turbos

10 radiators

1000 bhp

7 spd DSG

All wheel drive No turbos

6 speed manual

Rear wheel drive

No ABS

Center seating!

1st carbon fiber

Careful air handling

Air brake


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Poly, MatriX, Green Threads

Simple concurrency


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Poly Approach to Using Multi-Cores

Coordinated Multiple

Headless images

Core 1 Core 2 Core 3 Core 4


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Example

Coordinated Multiple Headless images

loadNYSE

loadAMEX loadNasdaq loadFunds

loadETFs

Core 1 Core 2 Core 3 Core 4


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MatriX

Like Polycephaly but:

Uses Xtreams (X)

Uses sockets

Allows a Grid in addition to multi-cores


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Green Threads

Often thought as inferior to native threads

Becoming more relevant


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Sequence bottleneck


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Bottleneck Revisited Overlap SolutionWork done overlapping the wait


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Seven ideas to get more

performance in your Smalltalk

application


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1.) See the forest through the trees.


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2.) C

If there is a small time critical section, you

can write it in C and call it from Smalltalk.


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3.) Use what you have

. with Poly & MatriX


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4.) 64 bits

We have 64 bit VMs which let you utilize a

very large object space.


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5.) Use what you have V2

Use your GPU for parallel computation!

Modern GPUs can give supercomputer likespeed to number crunching.


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6.) Base Product performance improvements

VM

Image algorithms


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7.) Profile

Because guesses are just inaccurate


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Innovation

Smalltalk IS Innovation!


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Innovation

Skins


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Innovation

ValueInterface


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Innovation - ValueInterface

Three things it makes easy:

Connecting widgets to the domain

Reacting to domain changes Connecting/Reusing Applications


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Innovation - ValueInterface

it makes easy:

Connecting/Reusing Applications

initialize

stockListApp := StockListApp new.

stockDetailApp := StockDetailApp in: stockListApp.


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name Wal-Mart

symbol #WMT

exchange NYSE

ValueInterface

Interface

Domain

Model

Wal-Martname

selectionHolder

WMTsymbol

NYSEexchangeNavteq

CiscoBoeing

Alcoa

Wal-Mart


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Innovation

WhateverWhatever provides an efficient shapeless Object, much like a self object. Youcan set any slots you want on each instance, give it custom behavior and eveninherit that behavior with new sub-instances. Consider this 'classless' objects.

Whatever.Object new

name: 'My name';

age: 76;

gender: #happy;

lifeStory: (Whatever.Object new

title: 'My epic tale of classlessness';

content: 'It was a dark and stormy night...';

yourself);

methodAt: 'printString' put: '^self name, '', aged: '', self age printString';

yourself

This package implements these shapeless objects in one of the most efficient ways possible.


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Afternoon Projects


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Afternoon Projects

Tetris

Kmeans

Progress Grid Pulse

Stock Model


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Advocacy

Pearls of Smalltalk


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Learn Something New!

Challenge yourself

Do something you do all the time

differently


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Fastest Shoelace Knot


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Fastest Shoelace Knot


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Contact info

Star Team(Smalltalk Strategic Task Action Resources)

Arden Thomas ([email protected])

Smalltalk Product Manager

Suzanne Fortman ([email protected])

Smalltalk Director

http://www.cincomsmalltalk.com
http://www.cincomsmalltalk.com/http://www.cincomsmalltalk.com/

smalltalk perspectives, by arden thomas

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