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turso/PERF.md
2025-08-25 17:43:42 -07:00

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# Performance Testing
## Mobibench
1. Clone the source repository of Mobibench fork for Turso:
```console
git clone git@github.com:penberg/Mobibench.git
```
2. Build Mobibench:
```console
cd Mobibench/shell
LIBS="../../target/release/libturso_sqlite3.a -lm" make
mv mobibench mobibench-turso
```
3. Run Mobibench:
(easiest way is to `cd` into `target/release`)
```console
# with strace, from target/release
strace -f -c ../../Mobibench/shell/mobibench-turso -f 1024 -r 4 -a 0 -y 0 -t 1 -d 0 -n 10000 -j 3 -s 2 -T 3 -D 1
./mobibench -p <benchmark-directory> -n 1000 -d 0 -j 4
```
## Clickbench
We have a modified version of the Clickbench benchmark script that can be run with:
```shell
make clickbench
```
This will build Turso in release mode, create a database, and run the benchmarks with a small subset of the Clickbench dataset.
It will run the queries for both Turso and SQLite, and print the results.
## Comparing VFS's/IO Back-ends (io_uring | syscall)
```shell
make bench-vfs SQL="select * from users;" N=500
```
The naive script will build and run limbo in release mode and execute the given SQL (against a copy of the `testing/testing.db` file)
`N` times with each `vfs`. This is not meant to be a definitive or thorough performance benchmark but serves to compare the two.
## TPC-H
Run the benchmark script:
```shell
./perf/tpc-h/benchmark.sh
```