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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
//! Benchmarking support
//!
//! Benchmarks are split up into two parts: the functions to be benchmarked live here, which the benchmarking code itself lives in `benches/bench.rs`.
//! It's easier to write benchmarking code inside the main crate, where we have access to private items.
//! However, it's easier to integrate with Cargo and criterion if benchmarks live in a separate crate.
//!
//! All benchmarks are defined as structs that implement either the [Benchmark] or [BenchmarkWithInput]
use std::{
path::PathBuf,
sync::{
atomic::{AtomicU32, Ordering},
OnceLock,
},
};
use tempfile::TempDir;
use crate::{SuggestIngestionConstraints, SuggestStore};
pub mod client;
pub mod geoname;
pub mod ingest;
pub mod query;
/// Trait for simple benchmarks
///
/// This supports simple benchmarks that don't require any input. Note: global setup can be done
/// in the `new()` method for the struct.
pub trait Benchmark {
/// Perform the operations that we're benchmarking.
fn benchmarked_code(&self);
}
/// Trait for benchmarks that require input
///
/// This will run using Criterion's `iter_batched` function. Criterion will create a batch of
/// inputs, then pass each one to the benchmark's iterations.
///
/// This supports simple benchmarks that don't require any input.
pub trait BenchmarkWithInput {
/// Input that will be created once and then passed by reference to each
/// of the benchmark's iterations.
type GlobalInput;
/// Input that will be created for each of the benchmark's iterations.
type IterationInput;
/// Generate the global input (not included in the benchmark time)
fn global_input(&self) -> Self::GlobalInput;
/// Generate the per-iteration input (not included in the benchmark time)
fn iteration_input(&self) -> Self::IterationInput;
/// Perform the operations that we're benchmarking.
fn benchmarked_code(&self, g_input: &Self::GlobalInput, i_input: Self::IterationInput);
}
fn unique_db_filename() -> String {
static COUNTER: AtomicU32 = AtomicU32::new(0);
format!("db{}.sqlite", COUNTER.fetch_add(1, Ordering::Relaxed))
}
/// Creates a new store that will contain all provider data currently in remote
/// settings.
fn new_store() -> SuggestStore {
// Create a "starter" store that will do an initial ingest, and then
// initialize every returned store with a copy of its DB so that each one
// doesn't need to reingest.
static STARTER: OnceLock<(TempDir, PathBuf)> = OnceLock::new();
let (starter_dir, starter_db_path) = STARTER.get_or_init(|| {
let temp_dir = tempfile::tempdir().unwrap();
let db_path = temp_dir.path().join(unique_db_filename());
let store =
SuggestStore::new(&db_path.to_string_lossy(), None).expect("Error building store");
store
.ingest(SuggestIngestionConstraints::all_providers())
.expect("Error during ingestion");
store.checkpoint();
(temp_dir, db_path)
});
let db_path = starter_dir.path().join(unique_db_filename());
std::fs::copy(starter_db_path, &db_path).expect("Error copying starter DB file");
SuggestStore::new(&db_path.to_string_lossy(), None).expect("Error building store")
}