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Tune drop_excess_capacity

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bjorn3
2022-08-24 12:22:01 +02:00
parent f71c545746
commit 293223d0cf
1 changed files with 8 additions and 8 deletions
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src/concurrency_limiter.rs
+8 -8
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@@ -152,14 +152,14 @@ pub(super) fn job_already_done(&mut self) {
fn drop_excess_capacity(&mut self) {
self.assert_invariants();
if self.active_jobs == self.pending_jobs {
// Drop all excess tokens
self.tokens.truncate(std::cmp::max(self.active_jobs, 1));
} else {
// Keep some excess tokens to satisfy requests faster
const MAX_EXTRA_CAPACITY: usize = 2;
self.tokens.truncate(std::cmp::max(self.active_jobs + MAX_EXTRA_CAPACITY, 1));
}
// Drop all tokens that can never be used anymore
self.tokens.truncate(std::cmp::max(self.pending_jobs, 1));
// Keep some excess tokens to satisfy requests faster
const MAX_EXTRA_CAPACITY: usize = 2;
self.tokens.truncate(std::cmp::max(self.active_jobs + MAX_EXTRA_CAPACITY, 1));
self.assert_invariants();
}
}