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Feedback Burst job schedule overhead
#5
(23-02-2026, 01:00 PM)josemendez Wrote: That's 22 arrays and a few integers/floats, which totals around a bit more than 176 bytes (22*2*4 bytes), let's say 200. Copying 200 bytes is basically instant, should not even show up in a profiler. If your job is copying around larger structs (even if it looks smaller code-wise) then it will be slower to schedule. Note that schedule overhead also depends on other factors, not just struct size.

Yes, there are other factors and this what I tried to find out. Just for reference my struct below.
Obviously with debugger disabled this difference is not so huge, but still it's interesting what factors cause those gaps.

Code:
            [ReadOnly] public NativeArray<int> indices;
            [NativeDisableParallelForRestriction] public NativeArray<float4> positions;
            [WriteOnly] public NativeArray<float4> endPositions;
            [NativeDisableParallelForRestriction] public NativeArray<quaternion> orientations;
            [NativeDisableParallelForRestriction] public NativeArray<float> invMasses;
            [WriteOnly] public NativeArray<float4> deltas;
            public int2 constrainedRange;
            public float segmentLength;
            public float oOffset;
            public float dt;
            [ReadOnly, NativeDisableParallelForRestriction] public NativeArray<int> targetIndices;
            public float targetTotalLength;
            public int targetCount;

(23-02-2026, 01:00 PM)josemendez Wrote: There's a button for this: you can find it in either Jobs->Jobs debugger or in Preferences->Jobs->Enable Jobs Debugger.
I think Jobs->Jobs debugger is available only with entities package, but prefereces works, thanks!

(23-02-2026, 01:00 PM)josemendez Wrote: Not currently, since other jobs depend on it (including, but not limited to fluids). For Obi 8 I'm aiming to remove all Complete() calls mid-step.
Got it, great!
Thank you, have a great day!
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Messages In This Thread
Burst job schedule overhead - by Qriva0 - 20-02-2026, 04:00 PM
RE: Burst job schedule overhead - by josemendez - 20-02-2026, 10:55 PM
RE: Burst job schedule overhead - by Qriva0 - 23-02-2026, 12:05 PM
RE: Burst job schedule overhead - by josemendez - 23-02-2026, 01:00 PM
RE: Burst job schedule overhead - by Qriva0 - 23-02-2026, 02:23 PM