Developer Joy == Developer Productivity (really!)

developer_productivity == developer_joy // (really!) Holly Cummins Senior Principal Software
Engineer Red Hat

@holly_cummins #RedHat

@holly_cummins #RedHat why are you smiling?

@holly_cummins #RedHat why are you smiling? work is not a
place to be happy!

#RedHat @holly_cummins ΑΡΙΣΤΟΤΈΛΗΣ

#RedHat @holly_cummins «τελειοῖ δὲ τὴν ἐνέργειαν ἡἡδονή» ΑΡΙΣΤΟΤΈΛΗΣ

#RedHat @holly_cummins «Η ευχαρίστηση στην δουλειά βάζει την τελειότητα στην
εργασία» ΑΡΙΣΤΟΤΈΛΗΣ

#RedHat @holly_cummins “Pleasure in the job puts perfection in the
work.” Aristotle

#RedHat @holly_cummins joy has business value.

#RedHat @holly_cummins the science bit

#RedHat @holly_cummins piglet litters grow faster if they play more
https://www.flickr.com/photos/tambako/8746156155

#RedHat @holly_cummins job satisfaction is the no. 1 predictor of
organizational performance

@holly_cummins #RedHat research shows: fun is good for business.

#RedHat @holly_cummins https:/ /hbr.org/2012/01/positive-intelligence

#RedHat @holly_cummins “Your brain at positive is 31% more productive
than your brain at negative, neutral or stressed. " https:/ /hbr.org/2012/01/positive-intelligence

#RedHat @holly_cummins

#RedHat @holly_cummins https:/ /www2.warwick.ac.uk/fac/soc/economics/staff/eproto/workingpapers/happinessproductivity.pdf

#RedHat @holly_cummins "Individuals [who just watched a comedy video] have
approximately 12% greater productivity." https:/ /www2.warwick.ac.uk/fac/soc/economics/staff/eproto/workingpapers/happinessproductivity.pdf

@holly_cummins #RedHat so how do developers become productive?

@holly_cummins #RedHat so how do developers become productive? joyful?

@holly_cummins #RedHat lack of joy creeps up on us productivity

@holly_cummins #RedHat lack of joy creeps up on us

@holly_cummins #RedHat → productivity tip for the lazy, happy, developer
get rid of boring stuff

it’s probably waste get rid of boring stuff

@holly_cummins #RedHat repetitive

@holly_cummins #RedHat meaningless repetitive

@holly_cummins #RedHat low-value meaningless repetitive

@holly_cummins #RedHat low-value meaningless repetitive repetitive

@holly_cummins #RedHat low-value meaningless repetitive repetitive repetitive

@holly_cummins #RedHat low-value meaningless repetitive repetitive repetitive redundant

@holly_cummins #RedHat low-value meaningless repetitive repetitive repetitive repetitive redundant

@holly_cummins #RedHat repetitive low-value meaningless repetitive repetitive repetitive repetitive redundant

@holly_cummins #RedHat manual handoffs

@holly_cummins #RedHat boilerplate code

@holly_cummins #RedHat manual status updates

@holly_cummins #RedHat meetings

#RedHat @holly_cummins “toil” SRE is a discipline dedicated to eliminating
toil from ops because toil isn’t worth it.

make computers do the hard work

make computers do the boring stuff

@holly_cummins #RedHat (yet) computers don’t expect to have fun

@holly_cummins #RedHat automation revenge! (yet) computers don’t expect to have
fun happy, lazy developer

@holly_cummins #RedHat bonus: making computers do stuff is really fun

automate all the things

@holly_cummins #RedHat what should be automated? - tasks that are
error-prone - tasks that people can do half-asleep

@holly_cummins #RedHat you can do better than bash

@holly_cummins #RedHat there are lots of ways you can do
better than bash

@holly_cummins #RedHat you can do a lot better

make stuff easy to find

@holly_cummins #RedHat adding developer experience improvements here is easy

@holly_cummins #RedHat bonus: templates automate all the bits needed to
start a new project (CI, build, boilerplate code …)

go beyond infrastructure automation automate knowledge

#RedHat @holly_cummins Guillaume, my CI was red. Is there a
known failure in the vertx suite?

known failure in the vertx suite? Guillaume, my CI was red. Is there a known failure in the gRPC suite?

known failure in the vertx suite? Guillaume, my CI was red. Is there a known failure in the kafka suite? Guillaume, my CI was red. Is there a known failure in the gRPC suite?

known failure in the vertx suite? Guillaume, my CI was red. Is there a known failure in the kafka suite? Guillaume, my CI was red. Is there a known failure in the gRPC suite? Guillaume

known failure in the vertx suite? Guillaume, my CI was red. Is there a known failure in the kafka suite? Guillaume, my CI was red. Is there a known failure in the gRPC suite? the solution? “auto-Guillaume” Guillaume

#RedHat @holly_cummins the solution? “auto-Guillaume” with develocity

go beyond infrastructure automation make coding better

@holly_cummins #RedHat let’s talk about quarkus

@holly_cummins #RedHat Java dynamism

@holly_cummins #RedHat build time Java dynamism

@holly_cummins #RedHat build time runtime Java dynamism

@holly_cummins #RedHat packaging (maven, gradle…) build time runtime Java dynamism

@holly_cummins #RedHat build time runtime Java dynamism

@holly_cummins #RedHat </> build time runtime load and parse •
config files • properties • yaml • xml • etc. Java dynamism

@holly_cummins #RedHat </> build time runtime Java dynamism

@holly_cummins #RedHat @ @ </> build time runtime • classpath
scanning and annotation discovery • attempt to load class to enable/disable features Java dynamism

@holly_cummins #RedHat @ @ </> build time runtime Java dynamism

@holly_cummins #RedHat @ @ </> build time runtime build a
metamodel of the world Java dynamism

@holly_cummins #RedHat @ @ </> build time runtime Java dynamism

@holly_cummins #RedHat @ @ </> build time runtime start •
thread pools • I/O • etc. Java dynamism

@holly_cummins #RedHat @ @ </> build time runtime ready to
do work! Java dynamism

@holly_cummins #RedHat what if we start the application more than
once? @ @ </>

once? @ @ </> @ @ </>

once? @ @ </> @ @ </> @ @ </>

once? @ @ </> @ @ </> @ @ </> @ @ </>

once? @ @ </> @ @ </> @ @ </> @ @ </> so much work gets redone every time

@holly_cummins #RedHat what if we initialize at build time? @
@ </> build time runtime

@ </> build time runtime start • thread pools • I/O • etc.

@ </> build time runtime ready to do work! start • thread pools • I/O • etc.

@holly_cummins #RedHat repeated starts are now efficient @ @ </>

@holly_cummins #RedHat repeated starts are now efficient @ @ </>
less wasted work

@holly_cummins #RedHat outcome

@holly_cummins #RedHat quarkus applications outcome

@holly_cummins #RedHat quarkus applications - start faster outcome

@holly_cummins #RedHat quarkus applications - start faster - use less
memory outcome

@holly_cummins #RedHat quarkus applications - start faster - use less
memory - have higher throughput outcome

@holly_cummins #RedHat adding developer experience improvements here is expensive

@holly_cummins #RedHat adding developer experience improvements here is expensive adding
developer experience improvements here is cheap

@holly_cummins #RedHat the dream

@holly_cummins #RedHat don’t make humans tell the computer what the
computer already knows the dream

@holly_cummins #RedHat don’t make humans tell the computer what the
computer already knows the dream is now achievable

@holly_cummins #RedHat package com.example; import org.jboss.logging.Logger; public class Thing {
private static final Logger log = Logger.getLogger(Thing.class); public void doSomething() { log.info("It works!"); } }

@holly_cummins #RedHat package com.example; import org.jboss.logging.Logger; public class Thing {
private static final Logger log = Logger.getLogger(Thing.class); public void doSomething() { log.info("It works!"); } } import io.quarkus.logging.Log; Log

@holly_cummins #RedHat public String hello(@QueryParam("name") String name) {

@holly_cummins #RedHat public String hello(@RestQuery String name) {

#RedHat @holly_cummins testcontainers integration … without quarkus @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)

#RedHat @holly_cummins testcontainers integration … without quarkus quarkus

@holly_cummins #RedHat what if… you could inherit boilerplate Hibernate queries
from a superclass, instead of having to write them all? example: hibernate

@holly_cummins #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<Entity> list(String query, Sort sort, Object... params) { return null; } Stream<Entity> stream(String query, Object... params) { return null; } long count() { return 0; } long count(String query, Object... params) { return 0; } } example: hibernate with panache

@holly_cummins #RedHat DAO @ApplicationScoped public class GreetingRepository implements PanacheRepository<Greeting> {
public Entity findByName(int name) { return find("name", name).firstResult(); } } example: hibernate with panache

@holly_cummins #RedHat machine efficiency unlocked human efficiency

@holly_cummins #RedHat machine efficiency unlocked human efficiency and human joy

@holly_cummins #RedHat this isn’t using gen AI to automate code
generation this is making the need for the code go away

@holly_cummins #RedHat 70% unnecessary code

@holly_cummins #RedHat 70% unnecessary code code isn’t an asset it’s
a liability

@holly_cummins #RedHat but if you do have to write boring
code … gen AI can help a lot.

@holly_cummins #RedHat but if you do have to write boring
code … gen AI can help a lot. gen AI can (sometimes) help a lot.

#RedHat @holly_cummins measurement

#RedHat @holly_cummins don’t just shift work from the measured pile
to the unmeasured pile

#RedHat @holly_cummins don’t just measure what is easiest to measure

#RedHat @holly_cummins we can measure “time at the computer!”

#RedHat @holly_cummins we can measure “time at the computer!” desks
are not the only place value is created

#RedHat @holly_cummins 14% took showers specifically for the purpose of
coming up with ideas

#RedHat @holly_cummins I am most productive while - showering -
running

#RedHat @holly_cummins I am most productive while - showering -
running this slide was written while running

use voice memo to capture all the work you do while running * the text on this slide was originally a voice memo

@holly_cummins #RedHat but what if you’re not debugging- in-your-head while
running?

running? what if you’re feeding chocolate

running? what if you’re feeding chocolate into the office fan, to see what happens?

@holly_cummins #RedHat we work in a creative industry

@holly_cummins #RedHat we work in a creative industry play helps
creativity

#RedHat @holly_cummins creativity brings us joy

@holly_cummins #RedHat productivity happiness

@holly_cummins #RedHat it’s not a trade-off. productivity happiness

@holly_cummins #RedHat it’s not a trade-off. productivity happiness it’s a
double-win.

@holly_cummins #RedHat ours is the only profession where “lazy” is
a compliment

@holly_cummins #RedHat we need to make it a profession where
“happy” is also a compliment

#RedHat @holly_cummins takeaways

#RedHat @holly_cummins takeaways - joy has business value

#RedHat @holly_cummins takeaways - joy has business value - get
rid of dumb work

rid of dumb work - if you can’t get rid of the work, make computers do the work

rid of dumb work - if you can’t get rid of the work, make computers do the work - don’t make humans tell the computer things the computer already knows

rid of dumb work - if you can’t get rid of the work, make computers do the work - don’t make humans tell the computer things the computer already knows - get rid of flab from the programming model (like quarkus does!)

rid of dumb work - if you can’t get rid of the work, make computers do the work - don’t make humans tell the computer things the computer already knows - get rid of flab from the programming model (like quarkus does!) - measure the important metric, not the one that’s easy to measure

@holly_cummins #RedHat thank you @[email protected] slides

Developer Joy == Developer Productivity (really!)

Developer Joy == Developer Productivity (really!)

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