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Optimize rayon iterator usage to avoid allocation

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This commit is contained in:
Pascal Kuthe 2023-08-08 00:07:42 +02:00
parent 3abe7b4c02
commit 1756e47f44
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GPG Key ID: D715E8655AE166A6
1 changed files with 13 additions and 10 deletions
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23
src/worker.rs
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@ -81,7 +81,7 @@ impl<T: Sync + Send + 'static> Worker<T> {
(pool, worker)
}
unsafe fn process_new_items(&mut self) {
unsafe fn process_new_items(&mut self, unmatched: &AtomicU32) {
let matchers = &self.matchers;
let pattern = &self.pattern;
self.matches.reserve(self.in_flight.len());
@ -99,17 +99,20 @@ impl<T: Sync + Send + 'static> Worker<T> {
if new_snapshot.end() != self.last_snapshot {
let end = new_snapshot.end();
let in_flight = Mutex::new(&mut self.in_flight);
let items = new_snapshot.filter_map(|(idx, item)| {
let items = new_snapshot.map(|(idx, item)| {
let Some(item) = item else {
in_flight.lock().push(idx);
return None;
unmatched.fetch_add(1, atomic::Ordering::Relaxed);
return Match { score: 0, idx: u32::MAX };
};
let score = if self.canceled.load(atomic::Ordering::Relaxed) {
0
} else {
pattern.score(item.matcher_columns, matchers.get())?
if self.canceled.load(atomic::Ordering::Relaxed) {
return Match { score: 0, idx };
}
let Some(score) = pattern.score(item.matcher_columns, matchers.get()) else {
unmatched.fetch_add(1, atomic::Ordering::Relaxed);
return Match { score: 0, idx: u32::MAX };
};
Some(Match { score, idx })
Match { score, idx }
});
self.matches.par_extend(items);
self.last_snapshot = end;
@ -167,7 +170,8 @@ impl<T: Sync + Send + 'static> Worker<T> {
return;
}
self.process_new_items();
let mut unmatched = AtomicU32::new(0);
self.process_new_items(&unmatched);
if pattern_status == pattern::Status::Rescore {
self.matches.clear();
self.matches
@ -175,7 +179,6 @@ impl<T: Sync + Send + 'static> Worker<T> {
self.remove_in_flight_matches();
}
let mut unmatched = AtomicU32::new(0);
let matchers = &self.matchers;
let pattern = &self.pattern;
if pattern_status != pattern::Status::Unchanged && !self.matches.is_empty() {