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Optimize offchain worker memory usage a bit. (#11454)

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* add missing events to elections fallback

* Merged

* add some logs and stuff

* undo a bunch of things

* undo lock file

* remove unused err

* fix build
This commit is contained in:
Kian Paimani
2022-05-24 07:23:05 +01:00
committed by GitHub
parent 4f393171d7
commit 494167a05b
7 changed files with 58 additions and 41 deletions
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substrate/primitives/npos-elections/src/assignments.rs
+11 -12
View File
@@ -120,18 +120,17 @@ impl<AccountId> StakedAssignment<AccountId> {
AccountId: IdentifierT,
{
let stake = self.total();
let distribution = self
.distribution
.into_iter()
.filter_map(|(target, w)| {
let per_thing = P::from_rational(w, stake);
if per_thing == Bounded::min_value() {
None
} else {
Some((target, per_thing))
}
})
.collect::<Vec<(AccountId, P)>>();
// most likely, the size of the staked assignment and normal assignments will be the same,
// so we pre-allocate it to prevent a sudden 2x allocation. `filter_map` starts with a size
// of 0 by default.
// https://www.reddit.com/r/rust/comments/3spfh1/does_collect_allocate_more_than_once_while/
let mut distribution = Vec::<(AccountId, P)>::with_capacity(self.distribution.len());
self.distribution.into_iter().for_each(|(target, w)| {
let per_thing = P::from_rational(w, stake);
if per_thing != Bounded::min_value() {
distribution.push((target, per_thing));
}
});
Assignment { who: self.who, distribution }
}