Quality and Performance Kotlin 1.4 in IntelliJ IDEs Anton - - PowerPoint PPT Presentation

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Sep 03, 2023 129 likes •451 views

Kotlin 1.4 Online Event Quality and Performance Kotlin 1.4 in IntelliJ IDEs Anton Yalyshev @anton_yalyshev October 12, 2020 Activities and events Indexing 28% 5% Overall lost time Build 16% VCS events 3% VFS refresh 4% Project

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Kotlin 1.4 Online Event October 12, 2020 @anton_yalyshev

Quality and Performance – Kotlin 1.4 in IntelliJ IDEs Anton Yalyshev

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Activities and events

Indexing Build VCS events VFS refresh Project import UI lags 28% 16% 3% 4% 18% 31%

Active session 95% Overall lost time 5%

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Activities and events

Indexing Build VCS events VFS refresh Project import UI lags 28% 16% 3% 4% 18% 31%

Project import 18% UI lags 31% Indexing 28% Build 16% VCS events 3% VFS refresh 4%

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The most important devX components

Smooth typing
IDE responsiveness
Code completion
Code highlighting
Navigation and Find Usages
Indexing

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1.3.60

IDE Performance:

Smooth typing
IDE responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

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1.3.60 Fast completion

IDE Performance:

Smooth typing
IDE responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

0200 ms 0% 40% 20% 200500 ms 5001000 ms 1000 ms 60% 58.4% 34.0% 5.7% 1.8% 1.3.60

Percents of Users who have such Average Completion Time

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1.3.60 Fast completion 1.3.70 Faster Completion

IDE Performance:

Smooth typing
IDE responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

0200 ms 0% 40% 20% 200500 ms 5001000 ms 1000 ms 80% 60% 58.4% 70.3% 34.0% 25.1% 5.7% 3.2% 1.8%

Percents of Users who have such Average Completion Time

1.3% 1.3.60 1.3.70

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Perception of response times

100200 ms: instant
5001000 ms: immediate
25 sec: keeps attention
710 sec: keeps context

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IDE Performance:

Smooth typing
IDE responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

1.3.60 Fast completion 1.3.70 Faster completion

inc. caches

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1.3.60 Fast completion 1.3.70 Faster completion

inc. caches

J/K interop

IDE Performance:

Smooth typing
IDE responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

.kt .java

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Average completion times experienced by users in .gradle.kts

0500 ms 5001000 ms 10001500 ms 1500 ms 50% 0% 40% 30% 20% 10% 1.3.60 1.3.70

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1.3.60 Fast completion 1.3.70 Faster completion

inc. caches

J/K interop IJ 2020.1 Highlighting algorithm

IDE Performance:

Smooth typing
Responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

1.4% 40% 20% 60%

First-time file highlighting times in a large project

Previous Current 0% 80% 01 sec 15 sec 510 sec 10 sec 74.3% 59.5% 29.6% 20.3% 3.3% 3.9% 7.3%

Test Framework: github.com/JetBrains/kotlin/tree/master/idea/performanceTests

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18% 31% Project import UI lags Indexing 28% Build 16% VCS events 3% VFS refresh 4%

IDE Performance:

Smooth typing
Responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

1.3.60 Fast completion 1.3.70 Faster completion

inc. caches

J/K interop IJ 2020.1 Highlighting algorithm IJ 2020.2

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1.3.60 Fast completion 1.3.70 Faster completion

inc. caches

J/K interop IJ 2020.1 Highlighting algorithm IJ 2020.2 Shared Indexes

IDE Performance:

Smooth typing
Responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

How to: jetbrains.com/help/idea/shared-indexes.html

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1.3.60 Fast completion 1.3.70 Faster completion

inc. caches

J/K interop IJ 2020.1 Highlighting algorithm IJ 2020.2 Shared Indexes 1.4 Fixed lots of: Freezes Deadlocks Memory/CPU cons.

IDE Performance:

Smooth typing
Responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

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1.3.60 Fast completion 1.3.70 Faster completion

inc. caches

J/K interop IJ 2020.1 Highlighting algorithm IJ 2020.2 Shared Indexes 1.4 Fixed lots of: Freezes Deadlocks Memory/CPU cons.

IDE Performance:

Smooth typing
Responsiveness
Code completion
Code highlighting
Navigation and

Find Usages

Indexing

1. Issue tracker: kotl.in/issue 2. Attach diagnostic info: jb.gg/ij-perf-reporting 3. Tell us what you were doing at the time

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Quality

Reducing plugin exceptions 1.52 times with each release
Stability of the Debugger, Formatter, Move Refactoring and more
Debugger for coroutines

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New Project Wizard

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Light editing

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IntelliJ LightEdit mode

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What’s next?

Continue investing in the speed of:

○ Code completion and highlighting ○ Navigation and Find Usages

IDE stability and quality of features
Cross-language inline and change signature refactorings

in Java/Kotlin mixed projects

Integration with the new Compiler Frontend

Our roadmap: https://kotl.in/roadmap

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One important announcement

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IntelliJ IDEA and Kotlin are getting closer

Kotlin repository IJ plugin IntelliJ platform repository

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IntelliJ and Kotlin are getting closer

Better tooling parity
Single release cycle for Kotlin plugin and IntelliJ IDEA
More opportunities for contribution
Amplifies IntelliJ Kotlin plugin development

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Thanks! Have a nice Kotlin

@anton_yalyshev