287 lines
10 KiB
Rust
287 lines
10 KiB
Rust
//! Indexing-path microbenchmarks.
|
|
//!
|
|
//! Same convention as `benches/search.rs`: each group pairs two ways of
|
|
//! doing the same work, measured together.
|
|
//!
|
|
//! ```text
|
|
//! cargo bench -p quicksearch-core --bench index
|
|
//! ```
|
|
|
|
mod corpus;
|
|
|
|
use divan::Bencher;
|
|
use quicksearch_core::{mime, textenc};
|
|
|
|
fn main() {
|
|
divan::main();
|
|
}
|
|
|
|
/// Compressing an extracted document: pure CPU, done before the writer takes
|
|
/// the connection. `batch_*` measures a whole chunk, as `Bodies::fill`
|
|
/// compresses one.
|
|
mod zstd_encode {
|
|
use super::*;
|
|
|
|
/// Level 3, matching `db/repo.rs`'s `ZSTD_LEVEL`.
|
|
const LEVEL: i32 = 3;
|
|
|
|
#[divan::bench(args = corpus::SIZES)]
|
|
fn encode_all(bencher: Bencher, size: usize) {
|
|
let text = corpus::text(size, 4).as_bytes();
|
|
bencher.bench(|| zstd::encode_all(divan::black_box(text), LEVEL).unwrap());
|
|
}
|
|
|
|
#[divan::bench(args = corpus::SIZES)]
|
|
fn bulk_reused(bencher: Bencher, size: usize) {
|
|
let text = corpus::text(size, 4).as_bytes();
|
|
let mut enc = zstd::bulk::Compressor::new(LEVEL).unwrap();
|
|
bencher.bench_local(move || enc.compress(divan::black_box(text)).unwrap());
|
|
}
|
|
|
|
/// One writer chunk of typical documents. A contention figure, not a
|
|
/// throughput one: the lock serializes the indexer against itself, and
|
|
/// all compression together is under 1% of a cold run.
|
|
const BATCH: usize = 500;
|
|
|
|
#[divan::bench]
|
|
fn batch_encode_all(bencher: Bencher) {
|
|
let text = corpus::text(1 << 10, 4).as_bytes();
|
|
bencher.bench(|| {
|
|
(0..BATCH)
|
|
.map(|_| {
|
|
zstd::encode_all(divan::black_box(text), LEVEL)
|
|
.unwrap()
|
|
.len()
|
|
})
|
|
.sum::<usize>()
|
|
});
|
|
}
|
|
|
|
#[divan::bench]
|
|
fn batch_bulk_reused(bencher: Bencher) {
|
|
let text = corpus::text(1 << 10, 4).as_bytes();
|
|
let mut enc = zstd::bulk::Compressor::new(LEVEL).unwrap();
|
|
bencher.bench_local(move || {
|
|
(0..BATCH)
|
|
.map(|_| enc.compress(divan::black_box(text)).unwrap().len())
|
|
.sum::<usize>()
|
|
});
|
|
}
|
|
}
|
|
|
|
/// What a small text file costs between the MIME sniff and the decode:
|
|
/// `classify` runs twice on identical bytes, and stays that way. The calls
|
|
/// pass different `truncated` flags and disagree at a mid-sequence EOF, and
|
|
/// the redundancy is under 1% of a cold run; re-measure here before coupling
|
|
/// the layers to share a verdict.
|
|
mod text_pipeline {
|
|
use super::*;
|
|
use std::path::Path;
|
|
|
|
#[divan::bench]
|
|
fn sniff_then_decode(bencher: Bencher) {
|
|
let head = corpus::text_head();
|
|
let path = Path::new("/tmp/bench/notes.txt");
|
|
bencher.bench(|| {
|
|
let looks = textenc::looks_like_text(divan::black_box(head));
|
|
let text = textenc::decode_text(head.to_vec(), path, false).unwrap();
|
|
(looks, text.len())
|
|
});
|
|
}
|
|
|
|
#[divan::bench]
|
|
fn sniff_only(bencher: Bencher) {
|
|
let head = corpus::text_head();
|
|
bencher.bench(|| textenc::looks_like_text(divan::black_box(head)));
|
|
}
|
|
|
|
/// Includes the `head.to_vec()` made only because `decode_text` takes
|
|
/// ownership.
|
|
#[divan::bench]
|
|
fn decode_only(bencher: Bencher) {
|
|
let head = corpus::text_head();
|
|
let path = Path::new("/tmp/bench/notes.txt");
|
|
bencher.bench(|| textenc::decode_text(divan::black_box(head).to_vec(), path, false));
|
|
}
|
|
}
|
|
|
|
/// The MIME sniff, once per new or changed file: ~180 ns on a text head
|
|
/// against ~2.2 µs for the `classify` next to it, so its allocations are not
|
|
/// worth removing. This group keeps that ratio visible.
|
|
mod mime_sniff {
|
|
use super::*;
|
|
use std::path::Path;
|
|
|
|
#[divan::bench]
|
|
fn text_head(bencher: Bencher) {
|
|
let head = corpus::text_head();
|
|
let path = Path::new("/tmp/bench/notes.txt");
|
|
bencher.bench(|| mime::guess_mime_from_head(path, divan::black_box(head)));
|
|
}
|
|
|
|
#[divan::bench]
|
|
fn binary_head(bencher: Bencher) {
|
|
let head = corpus::binary_head();
|
|
let path = Path::new("/tmp/bench/blob.bin");
|
|
bencher.bench(|| mime::guess_mime_from_head(path, divan::black_box(head)));
|
|
}
|
|
|
|
/// No extension, so the sniff falls through to magic bytes and the text
|
|
/// classifier.
|
|
#[divan::bench]
|
|
fn no_extension(bencher: Bencher) {
|
|
let head = corpus::text_head();
|
|
let path = Path::new("/tmp/bench/LICENSE");
|
|
bencher.bench(|| mime::guess_mime_from_head(path, divan::black_box(head)));
|
|
}
|
|
}
|
|
|
|
/// `repo::update_file_basic`'s state narrowing: an NA→NA update, the whole
|
|
/// of a re-run over a text-free tree, pays one statement instead of four.
|
|
/// `clear_always` clears unconditionally, the control that must not move
|
|
/// between builds; `narrowed` is the shipped function. NA→NA is idempotent,
|
|
/// so iterations are stable without re-seeding. DONE→PENDING is not benched:
|
|
/// it clears in both shapes, so there is nothing to regress.
|
|
mod update_narrowing {
|
|
use super::*;
|
|
use quicksearch_core::db::repo::{self, NewFile};
|
|
use quicksearch_core::mime::FileType;
|
|
use quicksearch_core::testutil::Scratch;
|
|
use rusqlite::{params, Connection, OptionalExtension};
|
|
|
|
const ROWS: usize = 1000;
|
|
|
|
fn new_file(name: &str) -> NewFile<'_> {
|
|
NewFile {
|
|
name,
|
|
parent: "/b/",
|
|
size: 7,
|
|
mtime: 7,
|
|
mime: None,
|
|
ftype: FileType::EMPTY,
|
|
hash: None,
|
|
needs_content: false,
|
|
}
|
|
}
|
|
|
|
fn seeded_na(tag: &str) -> (Scratch, Connection) {
|
|
let (dir, p) = Scratch::db(tag);
|
|
let mut conn =
|
|
quicksearch_core::db::open_or_recreate(p.to_str().unwrap(), &Default::default())
|
|
.unwrap();
|
|
let tx = conn.transaction().unwrap();
|
|
let names: Vec<String> = (0..ROWS).map(|i| format!("f{:04}.txt", i)).collect();
|
|
for name in &names {
|
|
repo::insert_file(&tx, &new_file(name)).unwrap().unwrap();
|
|
}
|
|
tx.commit().unwrap();
|
|
(dir, conn)
|
|
}
|
|
|
|
#[divan::bench]
|
|
fn clear_always(bencher: Bencher) {
|
|
let (_dir, mut conn) = seeded_na("bench-update-old");
|
|
let names: Vec<String> = (0..ROWS).map(|i| format!("f{:04}.txt", i)).collect();
|
|
bencher.bench_local(move || {
|
|
let tx = conn.transaction().unwrap();
|
|
for name in &names {
|
|
let f = new_file(name);
|
|
let id: i64 = tx
|
|
.prepare_cached(
|
|
"UPDATE files
|
|
SET size = ?1, mtime = ?2, hash = ?3, mime = ?4, type = ?5,
|
|
content_state = ?6
|
|
WHERE parent = ?7 AND name = ?8
|
|
RETURNING id",
|
|
)
|
|
.unwrap()
|
|
.query_row(
|
|
params![
|
|
f.size as i64,
|
|
f.mtime as i64,
|
|
f.hash,
|
|
f.mime,
|
|
f.ftype.bits() as i64,
|
|
repo::STATE_NA,
|
|
f.parent,
|
|
f.name,
|
|
],
|
|
|r| r.get(0),
|
|
)
|
|
.optional()
|
|
.unwrap()
|
|
.unwrap();
|
|
repo::remove_content_for_id(&tx, id).unwrap();
|
|
tx.prepare_cached("DELETE FROM failed_files WHERE file_id = ?1")
|
|
.unwrap()
|
|
.execute([id])
|
|
.unwrap();
|
|
}
|
|
tx.commit().unwrap();
|
|
});
|
|
}
|
|
|
|
#[divan::bench]
|
|
fn narrowed(bencher: Bencher) {
|
|
let (_dir, mut conn) = seeded_na("bench-update-new");
|
|
let names: Vec<String> = (0..ROWS).map(|i| format!("f{:04}.txt", i)).collect();
|
|
bencher.bench_local(move || {
|
|
let tx = conn.transaction().unwrap();
|
|
for name in &names {
|
|
repo::update_file_basic(&tx, &new_file(name)).unwrap().unwrap();
|
|
}
|
|
tx.commit().unwrap();
|
|
});
|
|
}
|
|
}
|
|
|
|
/// A watcher event for a directory whose files are all indexed and unchanged:
|
|
/// a re-sent `Create`, a `chmod -R`, the live view re-checking what it shows.
|
|
/// Nothing is written, so the cost is whatever it reads to learn that; the
|
|
/// full walk's answer is one `stat` per file.
|
|
mod unchanged_event {
|
|
use super::*;
|
|
use quicksearch_core::config::{Config, IgnoreSet};
|
|
use quicksearch_core::extract::Registry;
|
|
use quicksearch_core::incremental::{apply_fs_event, Budget};
|
|
use quicksearch_core::testutil::Scratch;
|
|
use quicksearch_core::watcher::FsEvent;
|
|
use std::sync::atomic::AtomicBool;
|
|
use std::time::{Duration, Instant};
|
|
|
|
const FILES: usize = 500;
|
|
|
|
#[divan::bench]
|
|
fn directory_create(bencher: Bencher) {
|
|
let (dir, db) = Scratch::db("bench-unchanged-event");
|
|
let tree = db.with_file_name("tree");
|
|
std::fs::create_dir_all(&tree).unwrap();
|
|
for i in 0..FILES {
|
|
std::fs::write(
|
|
tree.join(format!("f{:04}.txt", i)),
|
|
corpus::text(1 << 10, 4),
|
|
)
|
|
.unwrap();
|
|
}
|
|
let mut conn =
|
|
quicksearch_core::db::open_or_recreate(db.to_str().unwrap(), &Default::default())
|
|
.unwrap();
|
|
let config = Config::default();
|
|
let ignore = IgnoreSet::compile(&config.indexing.ignore_patterns).unwrap();
|
|
let registry = Registry::default_set();
|
|
let event = FsEvent::Create(tree.clone());
|
|
let cancel = AtomicBool::new(false);
|
|
let mut apply = move || {
|
|
let budget = Budget {
|
|
deadline: Instant::now() + Duration::from_secs(3600),
|
|
cancel: &cancel,
|
|
resume_from: 0,
|
|
};
|
|
apply_fs_event(&mut conn, &event, &config, &ignore, ®istry, &budget).unwrap()
|
|
};
|
|
// Indexed once; every timed run finds it unchanged.
|
|
apply();
|
|
bencher.bench_local(apply);
|
|
drop(dir);
|
|
}
|
|
}
|