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Get rid of unnecessary cloning and work. #6808
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eskimor
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A0-please_review
eskimor
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Mar 1, 2023
| // Must be called _after_ `fn cache_session_info_for_head` | ||
| // which guarantees that the session info is available | ||
| // for the current session. | ||
| let session_info: &SessionInfo = |
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By moving this cheap call into the loop, we can avoid the costly clone.
|
Very good catch! I'm curious to see how much this will improve the vote processing. |
tdimitrov
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Mar 1, 2023
BradleyOlson64
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Mar 1, 2023
mrcnski
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Mar 1, 2023
ghost
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Mar 1, 2023
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bot merge |
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Error: Statuses failed for ce59ad5 |
ordian
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Mar 7, 2023
* master: (27 commits) bump `zombienet` version to v1.3.37 (#6773) Bump `blake2b_simd` to 1.0.1 (#6829) changelog: update template for new label behavior (E3/E4) (#6804) Companion for paritytech/substrate#12828 (#6380) Don't send `ActiveLeaves` from leaves in db on startup in Overseer (#6727) Polkadot XCM Body constants (#6788) Decrease expected peer count in zombinenet tests (#6826) Additional tracing in `provisioner`, `vote_selection` and `dispute-coordinator` (#6775) Change node-key for bootnodes (#6772) Change handle_import_statements to FatalResult (#6820) Introduce XCM matcher for writing barriers (#6756) Freeze note on `SessionInfo`. (#6818) Bump parity-db (#6816) Removing Outdated References to Misbehavior Arbitration Subsystem (#6814) Forgotten re-export for `MatchedConvertedConcreteId` (#6815) Companion for substrate#13509: bump API versions of {Beefy,Mmr}Api (#6809) Migrate to `Weight::from_parts` (#6794) [XCM] Multiple `FungiblesAdapter`s support + `WeightTrader::buy_weight` more accurate error (#6739) Get rid of unnecessary cloning and work. (#6808) changelog: fix migration listing (#6806) ...
ordian
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Mar 7, 2023
* master: (27 commits) bump `zombienet` version to v1.3.37 (#6773) Bump `blake2b_simd` to 1.0.1 (#6829) changelog: update template for new label behavior (E3/E4) (#6804) Companion for paritytech/substrate#12828 (#6380) Don't send `ActiveLeaves` from leaves in db on startup in Overseer (#6727) Polkadot XCM Body constants (#6788) Decrease expected peer count in zombinenet tests (#6826) Additional tracing in `provisioner`, `vote_selection` and `dispute-coordinator` (#6775) Change node-key for bootnodes (#6772) Change handle_import_statements to FatalResult (#6820) Introduce XCM matcher for writing barriers (#6756) Freeze note on `SessionInfo`. (#6818) Bump parity-db (#6816) Removing Outdated References to Misbehavior Arbitration Subsystem (#6814) Forgotten re-export for `MatchedConvertedConcreteId` (#6815) Companion for substrate#13509: bump API versions of {Beefy,Mmr}Api (#6809) Migrate to `Weight::from_parts` (#6794) [XCM] Multiple `FungiblesAdapter`s support + `WeightTrader::buy_weight` more accurate error (#6739) Get rid of unnecessary cloning and work. (#6808) changelog: fix migration listing (#6806) ...
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Noticed when studying the logs that we do quite a bit of unnecessary work - studying the code, it was even worse than it looked like. Not only that we fetch the session info for each and every vote in a dispute, we also cloned the
SessionInfoeach time, while in reality no clone at all is necessary. This PR therefore gets rid of ~500SessionInfoclones per dispute (on Versi).This should be quite some speedup for vote import from chain. I also removed a costly debug assert - it served its purpose and is likely causing significant slowdown on testnets.