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https://issues.apache.org/jira/browse/BEAM-4070?focusedWorklogId=91525&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-91525
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ASF GitHub Bot logged work on BEAM-4070:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 16/Apr/18 22:22
            Start Date: 16/Apr/18 22:22
    Worklog Time Spent: 10m 
      Work Description: aaltay commented on issue #5134: [BEAM-4070]: Make 
cython: profile=False by default
URL: https://github.com/apache/beam/pull/5134#issuecomment-381768898
 
 
   I am a bit conflicted. 
   
   There is a clear value of being able to profile by default. (Is this 
something we can control by a config file instead of this pragma comments?)
   Micro benchmarks show some gains, although I do not want to base our 
decision purely on micro benchmarks.
   
   Another thing I learnt by reading 
http://cython.readthedocs.io/en/latest/src/tutorial/profiling_tutorial.html is 
that, cython profilin may effectively disable inlining, and it is possilbe to 
use `@cython.profile(False)` to disable only in those cases. Perhaps we can 
give that I try.
   
   I think, based on the given information it is premature to make this change.
   
   

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 91525)
    Time Spent: 1h 40m  (was: 1.5h)

> Disable cython profiling by default
> -----------------------------------
>
>                 Key: BEAM-4070
>                 URL: https://issues.apache.org/jira/browse/BEAM-4070
>             Project: Beam
>          Issue Type: Task
>          Components: sdk-py-core
>            Reporter: Boyuan Zhang
>            Assignee: Boyuan Zhang
>            Priority: Major
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> Enabling cython profiling adds some overhead.
> http://cython.readthedocs.io/en/latest/src/tutorial/profiling_tutorial.html



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