solana/bucket_map/tests/bucket_map.rs

49 lines
1.6 KiB
Rust

use {
rayon::prelude::*,
solana_bucket_map::bucket_map::{BucketMap, BucketMapConfig},
solana_measure::measure::Measure,
solana_sdk::pubkey::Pubkey,
std::path::PathBuf,
};
#[test]
#[ignore]
fn bucket_map_test_mt() {
let threads = 4096;
let items = 4096;
let tmpdir1 = std::env::temp_dir().join("bucket_map_test_mt");
let tmpdir2 = PathBuf::from("/mnt/data/0").join("bucket_map_test_mt");
let paths: Vec<PathBuf> = [tmpdir1, tmpdir2]
.iter()
.filter(|x| std::fs::create_dir_all(x).is_ok())
.cloned()
.collect();
assert!(!paths.is_empty());
let index = BucketMap::new(BucketMapConfig {
max_buckets: 1 << 12,
drives: Some(paths.clone()),
..BucketMapConfig::default()
});
(0..threads).into_par_iter().for_each(|_| {
let key = Pubkey::new_unique();
index.update(&key, |_| Some((vec![0u64], 0)));
});
let mut timer = Measure::start("bucket_map_test_mt");
(0..threads).into_par_iter().for_each(|_| {
for _ in 0..items {
let key = Pubkey::new_unique();
let ix: u64 = index.bucket_ix(&key) as u64;
index.update(&key, |_| Some((vec![ix], 0)));
assert_eq!(index.read_value(&key), Some((vec![ix], 0)));
}
});
timer.stop();
println!("time: {}ns per item", timer.as_ns() / (threads * items));
let mut total = 0;
for tmpdir in paths.iter() {
let folder_size = fs_extra::dir::get_size(tmpdir).unwrap();
total += folder_size;
std::fs::remove_dir_all(tmpdir).unwrap();
}
println!("overhead: {}bytes per item", total / (threads * items));
}