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Reduce contention in broadcast channel #5465
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A-tokio
Area: The main tokio crate
E-hard
Call for participation: Experience needed to fix: Hard / a lot
E-help-wanted
Call for participation: Help is requested to fix this issue.
M-sync
Module: tokio/sync
T-performance
Topic: performance and benchmarks
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Call for participation: Help is requested to fix this issue.
A-tokio
Area: The main tokio crate
M-sync
Module: tokio/sync
E-hard
Call for participation: Experience needed to fix: Hard / a lot
T-performance
Topic: performance and benchmarks
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Feb 17, 2023
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Implement atomic linked list that allows pushing waiters concurrently, which reduces contention. Fixes: tokio-rs#5465
vnetserg
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Implement atomic linked list that allows pushing waiters concurrently, which reduces contention. Fixes: tokio-rs#5465
vnetserg
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Implement atomic linked list that allows pushing waiters concurrently, which reduces contention. Fixes: tokio-rs#5465
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Labels
A-tokio
Area: The main tokio crate
E-hard
Call for participation: Experience needed to fix: Hard / a lot
E-help-wanted
Call for participation: Help is requested to fix this issue.
M-sync
Module: tokio/sync
T-performance
Topic: performance and benchmarks
The PR #5464 reduced the contention in the watch channel by storing waiters in several buckets. We should investigate if this is also possible for the broadcast channel.
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