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MIPS Loongson 3A Benchmarks On Debian

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  • Originally posted by ldesnogu View Post
    And Loongson doesn't have anything like that.
    Loongson do have 4mb cache instead of 1mb cache and loongson do have a second HT link instead of 1 HT link this means it can communicate with a second core this means the second core can hold the double RAM this means its a NUMA system the second core can assist with there cache this means a dualsocket loongson system do have 8mb cache and you do have the double ram speed than only 1 cpu and you do have the half parallelized ram latency.

    and you don't understand what thread level speculation (TLS) is this is not a CPU feature.
    you can do this on ALL cpus with "out-of-order execution"!
    http://en.wikipedia.org/wiki/Speculative_multithreading

    Originally posted by ldesnogu View Post
    Then your application is not single threaded any more.
    This is wrong because all other tasks do only assistance helping jobs.
    Technically the original task is single-threaded.

    Originally posted by ldesnogu View Post
    We were talking about very simple benchmarks.
    No you dream about simple useless benchmarks and I talk about real world usage of the CPU in the reality the result is different compared to your dream world.

    Originally posted by ldesnogu View Post
    Go re-read the article you linked yourself. And lookup with Google what these benchmarks are. Instead of talking, read and learn.
    I already did it these benchmarks are useless synthetically benchmarks no real world useful application will be that stupid than these syntactical tests.

    Originally posted by ldesnogu View Post
    I'm close to think you are just a troll: as soon as you can't answer something, you derail the discussion. That's a real pain and makes me sad for you because you could learn a lot of things by thinking and reading what others have to say instead of wanting to be right at any cost.
    You don't understand my arguments your arguments do not match my proposals.
    example: I talk about thread level speculation/speculative multithreading and you talk about Loongson do not have these features but the loongson do have the "out-of-order execution" feature
    Wikipedia about LTS:"(TLS), is a dynamic parallelization technique that depends on out-of-order execution to achieve speedup on multiprocessor CPUs."
    Wikipedia about Loongson feature list:"out-of-order execution"
    your babbling makes no sense ! you can write software for the loongson who do use the "out-of-order execution" feature of the loongson cpu to use the multicore cpu to speed up single-thread execution with Speculative multithreading.

    This is the prove I just know more than you about the tropic: Speed up single-thread-tasks on multicore systems. because of this my answers do not fit into your expectations.

    My answer is technically correct and I can prove it!

    "out-of-order execution"+"speculative multithreading" break your neck!

    Comment


    • Originally posted by maldorordiscord View Post
      your babbling makes no sense !
      You made my day

      I was being naive thinking you could learn something, I'll just ignore you. Plonk!

      Comment


      • Originally posted by ldesnogu View Post
        You made my day

        I was being naive thinking you could learn something, I'll just ignore you. Plonk!
        I thought the same about you
        My argument is technically based on Gustafson's law
        http://en.wikipedia.org/wiki/Gustafson%27s_law
        "which says that computations involving arbitrarily large data sets can be efficiently parallelized. "
        Your single thread argument is bullshit on large data sets. and in reality you always do have large data sets.

        And the Loongson cpu do have "out-of-order execution" because of this to speed up single-thread tasks by multicore tricks.

        Comment


        • "Some rejects a good idea from the only reason, because it is not of him" Luis Bu?uel Portol?s

          Comment


          • How about that real world "benchmark":
            Code:
            echo 'define f(x){r=1;while(x>1){r*=x;x-=1};return r};f(50000)'|time bc

            Comment


            • Originally posted by Kano View Post
              How about that real world "benchmark":
              Code:
              echo 'define f(x){r=1;while(x>1){r*=x;x-=1};return r};f(50000)'|time bc
              where is the utility value? you need this every day ? like browsing Internet ?

              you need this to watch porn ?

              Comment


              • Very simple way to compare single core speed. Your opterons will be slow as hell. Intel i7-3770S with Dragonfire/wheezy:
                Code:
                35.11user 0.26system 0:35.40elapsed 99PU (0avgtext+0avgdata 1496maxresident)k
                Single core speed matters for most apps, what you always want to compare are things that scale well with more cores like compiling with more threads or so. You can be sure even webrowsing is faster when you have got 2 fast cores against 4-16 slow cores.

                Comment


                • Originally posted by Kano View Post
                  Very simple way to compare single core speed. Your opterons will be slow as hell. Intel i7-3770S with Dragonfire/wheezy:
                  Code:
                  35.11user 0.26system 0:35.40elapsed 99PU (0avgtext+0avgdata 1496maxresident)k
                  Single core speed matters for most apps, what you always want to compare are things that scale well with more cores like compiling with more threads or so.
                  I do not have a Opteron system ?
                  my system do with that test:
                  57.26user 0.29system 0:57.74elapsed 99%CPU (0avgtext+0avgdata 5904maxresident)k
                  your system:
                  35.11user 0.26system 0:35.40elapsed 99PU (0avgtext+0avgdata 1496maxresident)k
                  lower result is better? then your system is only 38,69% faster i call it expensive because my cpu cost me 50?(80? normal) 2 years ago. And your cpu costs you 285 ? right now.
                  LOL really LOL (irony)i call this competence(/irony)

                  Originally posted by Kano View Post
                  You can be sure even webrowsing is faster when you have got 2 fast cores against 4-16 slow cores.
                  Not in my browsing style with more than 60pages open at the same time LOL
                  But thats also not the question the tropic is 1core versus 2 cores or more.
                  I already said the effect do have the biggest impact on 1 vs 2 core comparison.

                  Be sure on modern OS systems like windows7 and Kubuntu a dualcore perform better at singlecore tasks than a singlecore. A modern OS can use the second core with so many threads that the speedup for the main tread is bigger than the speed lost because of the shared resources.
                  I can benchmark this on my system by just turn of 3 cores and then turn the other cores on again.
                  1 core lose thats for sure.

                  Comment


                  • Usually Pentium G860 are faster than your cpu in that test. And whats your cpu? Btw you paid 50? more than i did

                    Comment


                    • Originally posted by Kano View Post
                      Usually Pentium G860 are faster than your cpu in that test. And whats your cpu? Btw you paid 50? more than i did
                      I run the test with a running aMule,bitcoinp2pclind,pdfreaders if i turn this stuff of my result is even better.
                      Originally posted by Kano View Post
                      Btw you paid 50? more than i did
                      wow nice thats really nice for you.
                      Originally posted by Kano View Post
                      And whats your cpu?
                      Its a B50 CPU @3,8ghz with only 1 ram dimm means only 64bit interface and the other 64bit interface is not used.

                      Comment

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