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From kennknowles <>
Subject [GitHub] beam pull request #3843: [BEAM-2516] Add fast path to ParDoTranslation for k...
Date Tue, 12 Sep 2017 23:26:20 GMT
GitHub user kennknowles opened a pull request:

    [BEAM-2516] Add fast path to ParDoTranslation for known ParDo class

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    These hacked fast paths bring the time back down to the same as before the portability
stuff was put in place. The fast paths will not apply when the pipeline has gone through a
proto round-trip so when I re-enable that (currently behind experiment flag) I will tackle
a cached rehydration (aka RawParDo) with its own fast path.
    R: @tgroh 
    CC: @iemejia 

You can merge this pull request into a Git repository by running:

    $ git pull ParDoTranslation-shortcut

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3843
commit 9b30bcaa707738da46bd238d3823717e266a8056
Author: Kenneth Knowles <>
Date:   2017-09-12T23:22:18Z

    Add fast path to ParDoTranslation for known ParDo class



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