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JuliaFolds / Transducers.jl / 1421
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DEFAULT BRANCH: master
Ran 09 Mar 2020 07:50AM UTC
Jobs 3
Files 21
Run time 2min
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Improve `Reduced` performance by serializing task scheduling (#183)

This PR implements more control over the order of the tasks to be
scheduled.  It is built on top a simpler threaded `reduce` I posted
elsewhere [1,2].  It guarantees that tasks are executed from left to
right while allowing load balancing with uneven workload per element.
It improves parallel findfirst performance [3] by avoiding to process
elements that appear after the one marked by `Reduced`.

[1] The initial implementation of threaded reduce with serialized
scheduling.
https://github.com/JuliaLang/julia/issues/34470#issuecomment-576920729

[2] The simplified version on which this PR depends.
https://github.com/JuliaLang/julia/issues/34470#issuecomment-577024341

[3] https://github.com/tkf/Transducers.jl/pull/183#issuecomment-577040873

1102 of 1284 relevant lines covered (85.83%)

3644456.32 hits per line

Jobs
ID Job ID Ran Files Coverage
1 1421.1 (JULIA_NUM_THREADS=2 COVERALLS_PARALLEL=true) 09 Mar 2020 07:50AM UTC 0
87.45
Travis Job 1421.1
2 1421.2 (JULIA_NUM_THREADS=2 COVERALLS_PARALLEL=true) 09 Mar 2020 07:52AM UTC 0
71.64
Travis Job 1421.2
3 1421.3 (JULIA_NUM_THREADS=2 COVERALLS_PARALLEL=true) 09 Mar 2020 07:50AM UTC 0
85.83
Travis Job 1421.3
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