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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) (pool, worker)
} }
unsafe fn process_new_items(&mut self) { unsafe fn process_new_items(&mut self, unmatched: &AtomicU32) {
let matchers = &self.matchers; let matchers = &self.matchers;
let pattern = &self.pattern; let pattern = &self.pattern;
self.matches.reserve(self.in_flight.len()); 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 { if new_snapshot.end() != self.last_snapshot {
let end = new_snapshot.end(); let end = new_snapshot.end();
let in_flight = Mutex::new(&mut self.in_flight); 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 { let Some(item) = item else {
in_flight.lock().push(idx); 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) { if self.canceled.load(atomic::Ordering::Relaxed) {
0 return Match { score: 0, idx };
} else { }
pattern.score(item.matcher_columns, matchers.get())? 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.matches.par_extend(items);
self.last_snapshot = end; self.last_snapshot = end;
@ -167,7 +170,8 @@ impl<T: Sync + Send + 'static> Worker<T> {
return; return;
} }
self.process_new_items(); let mut unmatched = AtomicU32::new(0);
self.process_new_items(&unmatched);
if pattern_status == pattern::Status::Rescore { if pattern_status == pattern::Status::Rescore {
self.matches.clear(); self.matches.clear();
self.matches self.matches
@ -175,7 +179,6 @@ impl<T: Sync + Send + 'static> Worker<T> {
self.remove_in_flight_matches(); self.remove_in_flight_matches();
} }
let mut unmatched = AtomicU32::new(0);
let matchers = &self.matchers; let matchers = &self.matchers;
let pattern = &self.pattern; let pattern = &self.pattern;
if pattern_status != pattern::Status::Unchanged && !self.matches.is_empty() { if pattern_status != pattern::Status::Unchanged && !self.matches.is_empty() {