Linux 6.12 Released With Real-Time Capabilities, Sched_Ext, More AMD RDNA4 & More

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  • F.Ultra
    Senior Member
    • Feb 2010
    • 2052

    #61
    Originally posted by dimko View Post

    Thanks for interesting perspective.
    Can't help but wonder why do I have a performance drop by using ctrl-z. Even though CPU and RAM usage did not change and CPU usage was significantly lower?
    I agree that it is an interesting problem that makes me a bit puzzled. One idea would be to see if ctrl-z really paused all the steps in the build, aka if the compiler or make forked other processes to do various things they are not paused if the parent is paused, aka I would bring up top and see if it really is only the game taking up cpu at that point as the first step.

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    • dimko
      Senior Member
      • Dec 2009
      • 932

      #62
      Originally posted by F.Ultra View Post

      I agree that it is an interesting problem that makes me a bit puzzled. One idea would be to see if ctrl-z really paused all the steps in the build, aka if the compiler or make forked other processes to do various things they are not paused if the parent is paused, aka I would bring up top and see if it really is only the game taking up cpu at that point as the first step.
      First thing I did - launched HTOP. Nope, CPU activity was reduced. Which is why I think issue is with polluted CPU cache. As it's only thing I can not see with usual OS tools.

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      • F.Ultra
        Senior Member
        • Feb 2010
        • 2052

        #63
        Originally posted by dimko View Post

        First thing I did - launched HTOP. Nope, CPU activity was reduced. Which is why I think issue is with polluted CPU cache. As it's only thing I can not see with usual OS tools.
        reduced is one thing but did it show that everything else was really paused (aka taking 0% cpu)?

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        • dimko
          Senior Member
          • Dec 2009
          • 932

          #64
          Originally posted by F.Ultra View Post

          reduced is one thing but did it show that everything else was really paused (aka taking 0% cpu)?
          Yes, before and after the game.

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          • F.Ultra
            Senior Member
            • Feb 2010
            • 2052

            #65
            Originally posted by dimko View Post

            Yes, before and after the game.
            well then I have no more ideas, this should normally be either a cpu or memory related issue and it is really strange that rt_sched changes this.

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