[
https://issues.apache.org/jira/browse/BEAM-8151?focusedWorklogId=343828&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-343828
]
ASF GitHub Bot logged work on BEAM-8151:
----------------------------------------
Author: ASF GitHub Bot
Created on: 14/Nov/19 23:10
Start Date: 14/Nov/19 23:10
Worklog Time Spent: 10m
Work Description: lukecwik commented on issue #10091: [BEAM-8151] Create
1000 SdkWorker objects instead of the current limit of 12.
URL: https://github.com/apache/beam/pull/10091#issuecomment-554127098
Updated perf numbers:
```
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 1 of 10,
per element time cost: 2.8493 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 2 of 10,
per element time cost: 0.0399395 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 3 of 10,
per element time cost: 0.0252568 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 4 of 10,
per element time cost: 0.0163703 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 5 of 10,
per element time cost: 0.0129816 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 6 of 10,
per element time cost: 0.0109879 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 7 of 10,
per element time cost: 0.0098083 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 8 of 10,
per element time cost: 0.00878269 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 9 of 10,
per element time cost: 0.00803661 sec
run_single_pipeline, 1 element(s) at start, 100 growth per run: run 10 of
10, per element time cost: 0.00757915 sec
Fixed cost 3.6176186113357542
Per-element 0.0037115805365822525
R^2 0.9044127183436924
```
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Issue Time Tracking
-------------------
Worklog Id: (was: 343828)
Time Spent: 12.5h (was: 12h 20m)
> Allow the Python SDK to use many many threads
> ---------------------------------------------
>
> Key: BEAM-8151
> URL: https://issues.apache.org/jira/browse/BEAM-8151
> Project: Beam
> Issue Type: Improvement
> Components: sdk-py-core, sdk-py-harness
> Reporter: Luke Cwik
> Assignee: Luke Cwik
> Priority: Major
> Time Spent: 12.5h
> Remaining Estimate: 0h
>
> We need to use a thread pool which shrinks the number of active threads when
> they are not being used.
>
> This is to prevent any stuckness issues related to a runner scheduling more
> work items then there are "work" threads inside the SDK harness.
>
> By default the control plane should have all "requests" being processed in
> parallel and the runner is responsible for not overloading the SDK with too
> much work.
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