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Productivity is
Messing Around
and Having Fun
Trisha Gee, Gradle
Holly Cummins, Red Hat
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hi!
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@holly_cummins
developer productivity engineering
developer joy
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@holly_cummins
are these opposites, or the same?
is development supposed to be fun?
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@holly_cummins
As usual, Fred Brooks has the answer.
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#Gradle #RedHat
@trisha_gee @holly_cummins
“The Joys of the Craft”
1. The sheer joy of making things
2. The pleasure of making things that are
useful to other people.
3. The fascination of fashioning complex
puzzle-like objects of interlocking moving
parts and watching them work
4. The joy of always learning
5. The delight of working in such a tractable
medium
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No content
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#Gradle #RedHat
@trisha_gee @holly_cummins
ok, so why aren't
our jobs fun?
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Toil
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#Gradle #RedHat
@trisha_gee @holly_cummins
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#Gradle #RedHat
@trisha_gee @holly_cummins
Let's Write More Code
solution
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#Gradle #RedHat
@trisha_gee @holly_cummins
“a developer writes 10
lines of code per day”
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#Gradle #RedHat
@trisha_gee @holly_cummins
10 lines per day
…really?
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#Gradle #RedHat
@trisha_gee @holly_cummins
12 lines per day
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#Gradle #RedHat
@trisha_gee @holly_cummins
29 lines per day
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#Gradle #RedHat
@trisha_gee @holly_cummins
can we
fi
x that?
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#Gradle #RedHat
@trisha_gee @holly_cummins
incentives?
solution
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#Gradle #RedHat
@trisha_gee @holly_cummins
true story (from the internet):
paying the team bonuses for lines of code
for (var i = 0; i < 10; i++)
{
// code
}
for
(
var i = 0;
i < 10;
i++
)
{
// code
}
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#Gradle #RedHat
@trisha_gee @holly_cummins
__ .__ .__ .__ __
_/ |_| |__ |__| ______ |__| ______ _____ ____ ____ _____ _____ ____ _____/ |_
\ __\ | \| |/ ___/ | |/ ___/ \__ \ _/ ___\/ _ \ / \ / \_/ __ \ / \ __\
| | | Y \ |\___ \ | |\___ \ / __ \_ \ \__( <_> ) Y Y \ Y Y \ ___/| | \ |
|__| |___| /__/____ > |__/____ > (____ / \___ >____/|__|_| /__|_| /\___ >___| /__|
\/ \/ \/ \/ \/ \/ \/ \/ \/
the team made comments
prettier
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#Gradle #RedHat
@trisha_gee @holly_cummins
the experiment lasted one day
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#Gradle #RedHat
@trisha_gee @holly_cummins
Can AI help us write more code?
solution
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#Gradle #RedHat
@trisha_gee @holly_cummins
70%
unnecessary
code
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#Gradle #RedHat
@trisha_gee @holly_cummins
LLMs are much
better at writing code
than deleting it.
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#Gradle #RedHat
@trisha_gee @holly_cummins
is this the equivalent of
ascii art comments?
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#Gradle #RedHat
@trisha_gee @holly_cummins
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#Gradle #RedHat
@trisha_gee @holly_cummins
even old-school code
assistance produces bloat
/**
* @return Returns the xyz.
*/
public String getXyz() {
return xyz;
}
/**
* @param xyz
* The xyz to set.
*/
public void setXyz(String xyz) {
this.xyz = xyz;
}
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#Gradle #RedHat
@trisha_gee @holly_cummins
comments and commit
messages should have a why
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#Gradle #RedHat
@trisha_gee @holly_cummins
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#Gradle #RedHat
@trisha_gee @holly_cummins
should we be trying to create
more lines of code?
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#Gradle #RedHat
@trisha_gee @holly_cummins
Is a developer’s job
writing code?
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#Gradle #RedHat
@trisha_gee @holly_cummins
“lines of code” is not a good
productivity metric for people.
or machines.
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#Gradle #RedHat
@trisha_gee @holly_cummins
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#Gradle #RedHat
@trisha_gee @holly_cummins
“41% of all code right
now is AI generated”
– Emad Mostaque, Stability CEO
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#Gradle #RedHat
@trisha_gee @holly_cummins
“41% of all code [that is
being written using Copilot]
right now is AI generated”
– Emad Mostaque, Stability CEO
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#Gradle #RedHat
@trisha_gee @holly_cummins
copilot users accepted
30% of its suggestions
copilot produced
40% of the codebase
uh oh, what does that say about
the information density?
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#Gradle #RedHat
@trisha_gee @holly_cummins
“negative lines of code”
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#Gradle #RedHat
@trisha_gee @holly_cummins
you pay your junior developers to write code
you pay your senior developers to delete code
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#Gradle #RedHat
@trisha_gee @holly_cummins
if code is so boring a machine can
predict it, maybe it shouldn’t be there?
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enter … developer joy
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@trisha_gee @holly_cummins
#Gradle #RedHat
package com.example;
import org.jboss.logging.Logger;
public class MyService {
private static final Logger log = Logger.getLogger(MyService.class);
public void doSomething() {
log.info("It works!");
}
}
example: logging
import io.quarkus.logging.Log;
Log
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@trisha_gee @holly_cummins
#Gradle #RedHat
package org.acme;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringDemo {
public static void main(String[] args) {
SpringApplication.run(SpringDemo.class, args);
}
}
example: declaring an application
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@holly_cummins
what if…
you could inherit boilerplate Hibernate
queries from a superclass, instead of
having to write them all?
example: hibernate
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@trisha_gee @holly_cummins
#Gradle #RedHat
@ApplicationScoped
public class GreetingRepository {
public Entity findByName(int name) {
return find("name", name).firstResult();
}
void persist(Entity entity) {}
void delete(Entity entity) {}
Entity findById(Id id) {}
List list(String query, Sort sort, Object... params) {
return null;
}
Stream stream(String query, Object... params) {
return null;
}
long count() {
return 0;
}
long count(String query, Object... params) {
return 0;
}
}
example: hibernate with panache
@ApplicationScoped
public class GreetingRepository implements PanacheRepository {
public Entity findByName(int name) {
return find("name", name).firstResult();
}
}
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@holly_cummins #RedHat
@TestConfiguration(proxyBeanMethods = false)
public class ContainersConfig {
@Bean
@ServiceConnection
public PostgreSQLContainer> postgres() {
return new PostgreSQLContainer<>(DockerImageName.parse("postgres:14"));
}
}
public class TestApplication {
public static void main(String[] args) {
SpringApplication
.from(MySpringDataApplication::main)
.with(ContainersConfig.class)
.run(args);
}
}
@Import(ContainersConfig.class)
example: testcontainers
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@holly_cummins #RedHat
the only thing you need to do to make
testcontainers work is not con
fi
gure a datasource
quarkus also auto-invokes
fl
yway and liquibase
example: testcontainers
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@holly_cummins #RedHat
but …
… the reason Fred Brooks’s
developers wrote 10 lines of code
a day wasn’t because they were
busy writing boilerplate
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#Gradle #RedHat
@trisha_gee @holly_cummins
What else are
developers doing?
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The 2019 Tidelift survey
https://bit.ly/3MOEpK3
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#Gradle #RedHat
@trisha_gee @holly_cummins
Measure, don’t guess.
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measure local build and test times
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#Gradle #RedHat
@trisha_gee @holly_cummins
What gets measured is what gets optimised,
make sure to measure the right thing
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@holly_cummins #RedHat
SPACE
• Satisfaction & Well-being
• Performance
• Activity
• Communication & Collaboration
• Ef
fi
ciency & Flow
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#Gradle #RedHat
@trisha_gee @holly_cummins
McKinsey productivity is so wrong.
Because it is.
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“E
ffi
ciency means to do things in the right way
(repeatable, controllable, scalable).
E
ff
ectiveness means to do the right thing
(trial and error, risk taking, adaptability). "
Lex Sisney - Organizational Physics: The Science of Growing a Business”
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Lex Sisney - Organizational Physics: The Science of Growing a Business”
“E
ffi
ciency means to do things in the right way
(repeatable, controllable, scalable).
E
ff
ectiveness means to do the right thing
(trial and error, risk taking, adaptability).
Unless you design against it, ef
fi
ciency will tend to
overpower and snuff out effectiveness."
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#Gradle #RedHat
@trisha_gee @holly_cummins
Dave Farley
Trisha
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#Gradle #RedHat
@trisha_gee @holly_cummins
Creating boredom
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#Gradle #RedHat
@trisha_gee @holly_cummins
“Creating space”
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#Gradle #RedHat
@trisha_gee @holly_cummins
toil is bad
idleness is … good?
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#Gradle #RedHat
@trisha_gee @holly_cummins
Default Mode Network
science con
fi
rms it:
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#Gradle #RedHat
@trisha_gee @holly_cummins
14% took showers
speci
fi
cally for the purpose
of coming up with ideas
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#Gradle #RedHat
@trisha_gee @holly_cummins
Holly is most productive while
• Showering
• Running
Trisha is most productive while
• Knitting
this slide was
written while running
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#Gradle #RedHat
@trisha_gee @holly_cummins
tip:
use voice memo to capture all
the work you do while running
* the text on this slide was originally a voice memo
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Activities to help your DMN
- knitting
- running
- walking
- showers
- gardening
- unloading the dishwasher
- colouring
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#Gradle #RedHat
@trisha_gee @holly_cummins
double-win
knitting makes you productive
… and you get new clothes
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#Gradle #RedHat
@trisha_gee @holly_cummins
knitting is useful for a
wide range of
fi
elds
aside
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#Gradle #RedHat
@trisha_gee @holly_cummins
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#Gradle #RedHat
@trisha_gee @holly_cummins
Embrace the dead time
Use it well:
- problem solving
- thinking
- staring into space
- play
Do not just move e
ffi
ciently
from task to task
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#Gradle #RedHat
@trisha_gee @holly_cummins
Make time for boredom
Also make time for play
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#Gradle #RedHat
@trisha_gee @holly_cummins
Fun has business value.
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@holly_cummins #RedHat
piglet litters grow faster
if they play more
https://www.
fl
ickr.com/photos/tambako/8746156155
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@holly_cummins #RedHat
“Your brain at positive is 31%
more productive than your
brain at negative, neutral or
stressed. "
https://hbr.org/2012/01/positive-intelligence
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@holly_cummins #RedHat
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@holly_cummins #RedHat
"Individuals [who just watched a
comedy video] have
approximately
12%
greater
https://www2.warwick.ac.uk/fac/soc/economics/staff/eproto/workingpapers/happinessproductivity.pdf
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@holly_cummins #RedHat
Research shows:
Fun is good for business.
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job satisfaction is
the no. 1
predictor of
organizational
performance
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@holly_cummins #RedHat
play helps creativity
we work in a creative
industry
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#Gradle #RedHat
@trisha_gee @holly_cummins
creativity makes us happy
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#Gradle #RedHat
@trisha_gee @holly_cummins
Remember SPACE?
The S is developer Satisfaction
An important metric in SPACE
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«τελειοῖ δὲ
τὴν ἐνέργειαν ἡἡδονή»
ΑΡΙΣΤΟΤΈΛΗΣ
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«Η ευχαρίστηση στην
δουλειά βάζει την
τελειότητα στην εργασία»
Αριστοτέλης
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“Pleasure in the job puts
perfection in the work.”
Aristotle
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@holly_cummins
it’s not a trade-off.
productivity
happiness
it’s a double-win.
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@holly_cummins
#RedHat
the double win
co-benefits
win-win
twofer
überwinden
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#Gradle #RedHat
@trisha_gee @holly_cummins
zero-sum is not enough
“The only initiatives that will positively
impact performance are ones which
increase throughput while
simultaneously decreasing cost.”
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@holly_cummins
#RedHat
using AI to generate code
that shouldn’t even be there
the double-lose
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@holly_cummins
#RedHat
- be careful how you measure productivity
(not LOC!)
- get rid of drugdery that stops you being
effective at your job
- being happier makes you better at your
job
- having down time (and showers, or knitting
jumpers) makes you better at your job
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@holly_cummins
thank you
hollycummins.com/productivity-
messing-around-devoxx/
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