Kotgres Benchmarks

Benchmarks for to compare the performance of well-known ORMs for Kotlin and Java versus Kotgres.

The benchmarks have the goal to be as unbiased as possible and to follow the docs to implement the benchmark functions.

PRs are welcome to add more ORMs or improve the performance of the existing ones.

For Java it includes:

• Hibernate
• Ebean
• Jooq
• ORMLite

For Kotlin it includes:

• Exposed
• Ktorm
• Kotgres

How to run

Pre-requisites

Make sure you have Docker installed. If not, you can install it here.

Running the benchmarks

Follow the next steps:

1. Bring up the local Postgres database by running docker compose up -d
2. Open the file java/io/kotgres/benchmarks/runner/BenchmarkRunner.kt on your IDE
3. Right click on BenchmarkRunner.kt and select Run 'BenchmarkRunnerKt' (it can take up to 5 minutes with the default settings, be patient)
4. Wait for the benchmarks to finish and check the results in the console

Results

The current top 3 looks like this: 🥇 Kotgres 🥈 ORMLite 🥉 Ebean

This is the output of that run on my local set up:

Kotgres (K): 0.53s (23.66x speed-up)
ORMLite (J): 0.57s (22.12x speed-up)
Ebean (J): 0.63s (19.94x speed-up)
JOOQ (J): 0.65s (19.31x speed-up)
Hibernate (J): 0.68s (18.55x speed-up)
Exposed (K): 6.73s (1.87x speed-up)
Ktorm (K): 12.59s (1.0x speed-up)