podcasts/hammond-data/benches/bench.rs
2017-11-14 17:56:28 +02:00

96 lines
2.6 KiB
Rust

#![feature(test)]
extern crate diesel;
extern crate hammond_data;
extern crate rand;
extern crate rayon;
extern crate rss;
extern crate tempdir;
extern crate test;
use diesel::prelude::*;
use rayon::prelude::*;
use rand::Rng;
use test::Bencher;
use hammond_data::run_migration_on;
use hammond_data::index_feed::{complete_index, insert_return_source, Database};
// use std::io::BufRead;
use std::path::PathBuf;
use std::sync::{Arc, Mutex};
struct TempDB(tempdir::TempDir, PathBuf, SqliteConnection);
// Big rss feed
const PCPER: &[u8] = include_bytes!("feeds/pcpermp3.xml");
const UNPLUGGED: &[u8] = include_bytes!("feeds/linuxunplugged.xml");
const RADIO: &[u8] = include_bytes!("feeds/coderradiomp3.xml");
const SNAP: &[u8] = include_bytes!("feeds/techsnapmp3.xml");
const LAS: &[u8] = include_bytes!("feeds/TheLinuxActionShow.xml");
static URLS: &[(&[u8], &str)] = &[
(PCPER, "https://www.pcper.com/rss/podcasts-mp3.rss"),
(UNPLUGGED, "http://feeds.feedburner.com/linuxunplugged"),
(RADIO, "https://feeds.feedburner.com/coderradiomp3"),
(SNAP, "https://feeds.feedburner.com/techsnapmp3"),
(LAS, "https://feeds2.feedburner.com/TheLinuxActionShow"),
];
/// Create and return a Temporary DB.
/// Will be destroed once the returned variable(s) is dropped.
fn get_temp_db() -> TempDB {
let mut rng = rand::thread_rng();
let tmp_dir = tempdir::TempDir::new("hammond_unit_test").unwrap();
let db_path = tmp_dir
.path()
.join(format!("hammonddb_{}.db", rng.gen::<usize>()));
let db = SqliteConnection::establish(db_path.to_str().unwrap()).unwrap();
::run_migration_on(&db).unwrap();
TempDB(tmp_dir, db_path, db)
}
fn index_urls(m: &Database) {
URLS.par_iter().for_each(|&(buff, url)| {
// Create and insert a Source into db
let s = {
let temp = m.lock().unwrap();
insert_return_source(&temp, url).unwrap()
};
// parse it into a channel
let chan = rss::Channel::read_from(buff).unwrap();
// Index the channel
complete_index(m, &chan, &s).unwrap();
});
}
#[bench]
fn bench_index_feeds(b: &mut Bencher) {
let TempDB(_tmp_dir, _db_path, db) = get_temp_db();
let m = Arc::new(Mutex::new(db));
b.iter(|| {
index_urls(&Arc::clone(&m));
});
}
#[bench]
fn bench_index_unchanged_feeds(b: &mut Bencher) {
let TempDB(_tmp_dir, _db_path, db) = get_temp_db();
let m = Arc::new(Mutex::new(db));
// Index first so it will only bench the comparison test case.
index_urls(&Arc::clone(&m));
b.iter(|| {
for _ in 0..10 {
index_urls(&Arc::clone(&m));
}
});
}