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Make global queue and event polling intervals configurable #4671

Merged
merged 4 commits into from May 18, 2022
Merged

Make global queue and event polling intervals configurable #4671

merged 4 commits into from May 18, 2022

Commits on May 17, 2022

  1. Make global queue and event polling intervals configurable 

    Adds knobs to the runtime builder to control the number of ticks
between polling the global task queue (fairness) and the event driver
(I/O prioritization).

Both varieties of scheduler already supported these intervals, but they
were defined by private constants. Some workloads benefit from
customizing these values.

Closes tokio-rs#4651
    @aturon
    aturon committed May 17, 2022
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  2. Revisions from reviewing 

    * Update tick and interval types from `u8` to `u32`.
* Expand documentation for the interval knobs to explain why different settings are useful.
    @aturon
    aturon committed May 17, 2022
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  3. Remove extraneous blank lines in doc comments

    @aturon
    aturon committed May 17, 2022
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  4. Further improve docs around defaults

    @aturon
    aturon committed May 17, 2022
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