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Benchmarking The Ubuntu "Low-Jitter" Linux Kernel

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  • Paradox Ethereal
    replied
    edit: outdated links.
    Last edited by Paradox Ethereal; 10-27-2017, 06:37 PM.

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  • Paradox Ethereal
    replied
    And yeah, about disk i/o, I just had opera read a ton of mail, while watching low-jitter video in another window. So much for that "disk i/o".
    Last edited by Paradox Ethereal; 10-27-2017, 06:37 PM.

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  • Paradox Ethereal
    replied
    Videojitter on youtube now is very low, on my machine, btw. So not only is doom 3 running extremely well, but even unsynced videos. Ofcourse as I write, videos need to be synced to completely get rid of it.

    Peace Be With You.
    Last edited by Paradox Ethereal; 10-27-2017, 06:37 PM.

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  • NomadDemon
    replied
    enemy territory

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  • Kano
    replied
    Wow, how about some games that run with linux like dhewm3, doom 3 bfg (wine), rage (wine)?

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  • NomadDemon
    replied
    Originally posted by Kano View Post
    @Paradox Uncreated

    Which of your games runs with 60 fps and has got "jitter" on your systems?
    afterfall insanity...
    smite
    giant citizen kabuto and many other games from 2005 to 2012. [of cource under windows]

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  • Kano
    replied
    @Paradox Uncreated

    Which of your games runs with 60 fps and has got "jitter" on your systems?

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  • ninez
    replied
    Originally posted by liam View Post
    I love the substantive responses of four year olds.
    I truly hope you are a troll and not the zealot you seem to be (seriously, "Peace Be With You" and yet you make the most disgusting statements preceding it...I'd imagine God would be pissed, if not for hypocrisy but at least blatant inconsistency).
    Ugh, mixing OS discussions with religious imagery (and seeming statements about morality).
    He is both a zealot and a troll. ~ For one, he is Norwegian and a convert to Islam, and even has gone so far to now use an alias (islamic name) rather than the name he was given by his parents. He is the only person i know of that has "PRAISED BE GOD" written in the README's for his crappy plugins - which is odd to say the least. He's heretic even in his own faith (proven to be in another thread), he's just lucky he's a convert and not living in an islamic state.

    And by the way, Liam is most certainly correct -> RT can affect throughput negatively, this is a well documented FACT.

    I find it laughable that in the other thread (where PU and i got into an argument) he claimed that his 'low-jitter' kernel essentially made RT useless/not needed anymore, yet now a week or so later he plans to be his kernel using the RT patchset. lol. Even funnier, him posting on the rt-user-list;

    Originally posted by Paradox Uncreated on rt-linux-user-list
    I think it complains about not finding rootdevice. Anyway, I am getting a new machine, so it might not be much of an issue. If you still want to try and find the bug let me know. Also how do I compile without threadirqs, if I enable basic-rt, threadirqs are enabled in .config also.
    Hey dumbass, did it not occur to you that the reason it enables threadirqs is because RT requires it? (your fucking dumb). After all, threadirqs while (now) mainline were originally a part of the RT patchset (merged into mainline in 2.6.39) and are a requirement. You should also learn how to configure your system, your root device problem is likely human error / bad config - ie: you weren't paying attention... I've got 3.6.3-rt6 installed and running no problem (although i use 3.4-rt since 3.6.3-rt is buggy, for now). I for one wouldn't put any stock into this wannabe kernel developer, who doesn't seem to know what he is doing, at all. Another funny example of PU stupidity;

    Originally posted by from rt-linux-user-list
    PU: Yes, it works fine without basic-rt, or full-rt. Do you know if basic-rt can
    be compiled without threadirqs?

    Tglx: No. And that's not interesting at all. We really want to know what's going wrong when you have irq threading enabled. You can also try the following. Compile the kernel without RT and add "threadirqs" on the kernel command line. So that's just mainline + irq threading. Does that work? In any case it would be helpful if you provide the full dmesg output of a failing boot.

    PU: Ok, you really want to know. Well I can do anything to help you with that. Does dmseg contain info from last boot? Or can it be accessed from the console-thingy?
    So aside from not knowing all that much about the linux kernel, apparently PU doesn't even know about logging in linux either... Nor does he actually provide any of the information Tglx is asking for (just like he provides no metrics to support is kernel being as great as he says).

    I can only speak for myself - but I think you would have to be a complete moron to put any stock in PU's 'low-jitter' kernel. It's pretty obvious he is just an enthusiast, hacking (more like fumbling) around but not really knowing what he is doing. it's laughable shit really.

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  • Paradox Ethereal
    replied
    This is not about turning off Vsync. This is about accurate low-jitter FPS. Which apparently is real hard for many to understand. I am just happy God has graced me with intelligence, to pursue my own happiness in life. And that is what I will do.

    Now this subject has been talked through, so no further comment should be neccesary. I can update the thread when I get the new low-latency h/w though, and give my view on that.

    Peace Be With You.
    Last edited by Paradox Ethereal; 10-27-2017, 06:36 PM.

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  • Kano
    replied
    Your best optimized kernel does not help when the gfx card or the cpu is too slow. When you enable vsync and the the rate goes down from 60 to 30 then it is definitely no kernel problem. When you manage to get 60 fps then the kernel is really unimportant.

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