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Question IJobEntityBatch or IJobChunk

Discussion in 'Entity Component System' started by Deleted User, Feb 4, 2021.

  1. Deleted User

    Deleted User

    Guest

    Hi there folks,

    It has been a while since I last touched Unity ECS and many things have changed. In what cases do you use IJobEntityBatch over IJobChunk and vise versa? I see that in 0.17 changelog Unity.Transforms now uses IJobEntityBatch over IJobChunk doe to lower overhead of scheduling. Is it always the case?

    Thank you.
     
    Deleted User, Feb 4, 2021
    #1
    redwren likes this.

  2. Sarkahn

    Sarkahn

    Joined:
    Jan 9, 2013
    Posts:
    440
    You should use IJobEntityBatch in all cases
    Screenshot_20210204-085640.png
     
    Sarkahn, Feb 4, 2021
    #2
    andrew-lukasik and Timboc like this.

  3. Kmsxkuse

    Kmsxkuse

    Joined:
    Feb 15, 2019
    Posts:
    306
    Except for in cases where you're trying to BurstCompile ISystemBase OnUpdate() calls.

    Only IJobChunk works. The conversion between IJobChunk and IJobEntityBatch is pretty straightforward anyways.
     
    Kmsxkuse, Feb 4, 2021
    #3
    Timboc likes this.

  4. Antypodish

    Antypodish

    Joined:
    Apr 29, 2014
    Posts:
    10,778
    My today rather disappointing experience, playing with IJobChunk and 10k entities.
    Bad jobs utilization. Idle, Idle, Idle

    btw.
    IJobEntitiesBatch doc link is still broken.

     
    Antypodish, Feb 25, 2021
    #4