Moiradb

A deterministic database.

Dependencies

On Debian / Ubuntu the following packages are needed:

sudo apt install gnuplot build-essential pkg-config clang

gnuplot is only necessary for graph generation for benchmarks, it's optional.

Benchmarks

You can run benchmarks using cargo bench. We're using Criterion for this, so benchmarks work in Rust stable.

Benchmarks generate HTML report pages, output is in target/criterion/<reportname>/report.

Running perf

In order to do perf stats collection, run

cargo build --release
perf record --call-graph=dwarf ./target/release/moiradb

You may need to run the following commands to enable stats collection by non-root users:

sudo sh -c 'echo 1 >/proc/sys/kernel/perf_event_paranoid'
sudo sysctl -w kernel.perf_event_paranoid=1

What's with the name?

In Greek mythology, Moira (or the Moirai) are the entities that control our fates - perfect for a deterministic database.