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  • Qualcomm Announces Four New Snapdragon Processors

    Phoronix: Qualcomm Announces Four New Snapdragon Processors

    Qualcomm announced yesterday the introduction of four new Snapdragon processors that the company says will "take 4G LTE and multimedia to new heights". These new processors are the Snapdragon 620, 618, 425, and 415...

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite

  • #2
    Will it work with Freedreno?

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    • #3
      Am I the only one thinking an octa-core on a mobile phone is dumb and useless ?
      Is an android phone really have 8 threads/programs/whatever that ALL need their own cpu at 100% ??

      This really smells the purest marketing sh*t...

      Oh sorry, of course it will beat all older cpu with 200% perf, because 2x more core = 2x more score in benchmarks

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      • #4
        This is more an anti-linux than linux news.

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        • #5
          Originally posted by Passso View Post
          Am I the only one thinking an octa-core on a mobile phone is dumb and useless ?
          big.LITTLE works via 4 high power cores and 4 low poer cores. You generally use the low power cores unless the extra oomph is temporarily needed, when the work is switched to the 4 high power cores.

          Now when you already have a design with 8 cores, being able to use them all if the workload can handle it seems sensible.

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          • #6
            Originally posted by You- View Post
            big.LITTLE works via 4 high power cores and 4 low poer cores. You generally use the low power cores unless the extra oomph is temporarily needed, when the work is switched to the 4 high power cores.
            And that is approximately done around 300ms after the phone already lagged and exactly 2ms before the load drops again.

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            • #7
              Hang it up and drive. Cell phones aren't the only use for cpu's. Sheesh.

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              • #8
                Originally posted by Passso View Post
                Am I the only one thinking an octa-core on a mobile phone is dumb and useless ?
                Is an android phone really have 8 threads/programs/whatever that ALL need their own cpu at 100% ??

                This really smells the purest marketing sh*t...

                Oh sorry, of course it will beat all older cpu with 200% perf, because 2x more core = 2x more score in benchmarks
                The cores can be ran at slower speeds with the load distributed better for more power savings (many things may be running at once). Also they are 64-bit, so virtual memory can be allocated more effectively. BIG.little should also benefit power consumption to an extent. Some background processes will benefit from increased speeds. Also, many of us play games or do something interesting with our phones, and many intensive programs are paralleled. The Ubuntu phones will be able to take advantage of the power for running the Ubuntu desktop when plugged into a dock. These cores may be used in servers and Chromebooks as well, or at least they are competing for that market, and these run highly parallel applications and need power savings.

                Last thing: You don't know what things could be made possible by making existing technology more powerful. Something that wasn't possible yesterday may become possible today.

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                • #9
                  Originally posted by Passso View Post
                  Am I the only one thinking an octa-core on a mobile phone is dumb and useless ?
                  Is an android phone really have 8 threads/programs/whatever that ALL need their own cpu at 100% ??

                  This really smells the purest marketing sh*t...

                  Oh sorry, of course it will beat all older cpu with 200% perf, because 2x more core = 2x more score in benchmarks
                  It depends. On the 610 (iirc), it really doesn't make sense as they are all little cores.
                  On a true big.LITTLE it can make sense, but the software (at the scheduler/cpufreq/cpuidle/policy level) isn't there yet. Anandtech has done some nice work in the last couple of weeks looking at various implementations of big.LITTLE. The most interesting thing they've found is how different each company's scheduler fails in different ways.
                  As for threads, keep in mind that at any given time even a phone is running more processes than there are cores, even in an eight core device. Multiplexing can work, and sometimes makes the most sense depending on the architecture and load, but if there are more processes than cores then there is always a tradeoff between reactivity and throughput. For intel, with their massive performance and clocks, multiplexing works well. However, for realtime applications, having pinned cores makes the most sense...not that android does this, but it's something that could be done.

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                  • #10
                    Originally posted by vadix View Post
                    DLast thing: You don't know what things could be made possible by making existing technology more powerful. Something that wasn't possible yesterday may become possible today.
                    Hear, hear. I fail to understand why whenever there's some advancement in technology -- like more mobile cores, or 4K screens on tablets and laptops -- someone always has to bitch about it. "No one ever needs..." predictions are always wrong. Maybe the nattering nabob of negativity would be happy with whale oil lamps and typewriters, fine. We'd prefer they keep their sourpussness to themselves!

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