• Nighed@sffa.community
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    10 months ago

    There is only so much that can be multi-threaded, beyond that the overhead just slows things down (and can cause bugs)

    More simulation type games (city skylines etc) can multithread more (generally) while your standard shooter has much less that it can do (unless you have AI bots etc)

    • deleted@lemmy.world
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      10 months ago

      My point here is the developer managed to split the load evenly between 8 threads. How come they cannot do it for 16?

      The keyword, evenly, means all 8 threads are at 100% while other 8 threads are at 1-2%.

      • throwwyacc@lemmy.world
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        10 months ago

        You’d need to look at the actual implementation, it’s hard to speculate from a tiny amount of data. What game are you referencing?

        And as someone who has done multi threaded programming I can tell you that for games it is unlikely that they can just add more cores. You need work that truly can be split up, meaning that each core doesn’t needs work to do that doesn’t rely on the results from another core

        Graphics rendering is easy for this and it’s why gpus have a crazy number of cores. But you aren’t going to do graphics compute on the cpu

        • Justin@lemmy.jlh.name
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          10 months ago

          For that number to be 8 though suggests that there’s just a “number of workers” variable hard-coded somewhere.

          • throwwyacc@lemmy.world
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            10 months ago

            Potentially suggests, but does not prove And I’m quite skeptical they they truly have an example of a game that is running 100% on all 8 cores, high maybe but 100%?

        • deleted@lemmy.world
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          10 months ago

          That was long time ago. I believe the game was BF1.

          I know it’s hard to speculate but 100% cpu usage for solid 5~7 seconds only for 8 cores cannot be separate workload (single threaded). A spike is understandable tho.

          The game play wasn’t impacted to be honest.