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Thread: Rift uses one Core vs multi-core CPU.

  1. #1
    Soulwalker Raelani's Avatar
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    Default Rift uses one Core vs multi-core CPU.

    I have a four core Intel I7 CPU. I'm watching my CPU utilization from the time I launch Rift and I notice that it only uses one core. Around 85% most of the time. If I open up task manager I see that Rift32.exe is the process consuming the CPU. Any reason why? The OS I'm running is Windows 7 64bit.

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    General of Telara Reciprocity's Avatar
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    Because Rift wasn't coded to take advantage of multi-cores, or 64 bit OS.
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    Shadowlander
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    I'm using a core 2 quad I haven't had any performance issues so I never looked ... I think I shall later now though.

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    General of Telara Pippington's Avatar
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    There's not that many games yet (still) that use more than 2 cores.

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    Sword of Telara Sagittis's Avatar
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    When Rift started development was back in 2004, show me some quad core processors back then.

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    Ascendant
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    Quote Originally Posted by Sagittis View Post
    When Rift started development was back in 2004, show me some quad core processors back then.
    No quad core but there were dual cores back in 2004.

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    Telaran FullMetalMonkey's Avatar
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    To be honest if Rift was to utilize all fours it wouldn't really make much of a difference anyway to be honest as the game is more depentant on GPU power and Bandwidth. The only game which i've played recently that having more cores drasticly affects performance is Supreme Commander 2 and which isnt unsuprising because of the amount of 'stuff' going on at the same time in that game.

    That being said, it would be nice if the game was encoded for 64bit as it would probably improve my gaming experience as i could use all of my RAM on my Computer (8gig onboard and 2gig on my GPU), the only thing which is currently letting my PC down is my graphics card (GeForce GT230 OEM) which i'm planning to replace within the next couple of months with a GeForce 560ti.

    EDIT: Don't get me wrong, using all four core WILL make a difference but not by as much as your expecting.
    Last edited by FullMetalMonkey; 03-18-2011 at 06:11 AM.

  8. #8
    Rift Disciple atso's Avatar
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    Rift is multicore. If you're not seeing CPU full use its probably because the processor is idle waiting for the graphic card.

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    Ascendant Machiko_Naguchi's Avatar
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    Do what I do. Put Rift on one Core, Ventrillo on another, and let your OS use the other two cores.
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    Champion of Telara
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    rift uses both cores on my system.

    Almost no games, even the newest ones out utilize more then 2 cores.
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    Rift Disciple Aranagon's Avatar
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    Quote Originally Posted by Machiko_Naguchi View Post
    Do what I do. Put Rift on one Core, Ventrillo on another, and let your OS use the other two cores.
    And let the other 4 idle ?

  12. #12
    Soulwalker Raelani's Avatar
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    I discovered how to spread the load across cpu's more evenly. Something I wanted to try. This is a new pc I just got a few weeks ago and noticed that Hyperthreading was turned on by default in the Bios since I was seeing eight cores listed in task manager and in the CPU Usage tool I'm using to watch my cpu's and memory. I just turned off hyperthreading in the bios to see how it would impact the game. I now see just four cores listed and the game is evenly spread across cpu's. or I should say utilization is more evenly spread. So the game either doesn't like hyperthreading or cpu utilization is misreporting the balance across cpu's.

  13. #13
    Ascendant Machiko_Naguchi's Avatar
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    Quote Originally Posted by Aranagon View Post
    And let the other 4 idle ?
    The i7 only has 4 cores.

    That you are talking about is what you see due to Hyper-threading. They aren't the same.
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  14. #14
    General of Telara
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    Quote Originally Posted by Aranagon View Post
    And let the other 4 idle ?
    Firefox. 4 hyperthreaded cores should barely be enough for you to run Flash. :P

  15. #15
    Telaran
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    Go to your rift folder, locate the file rift.cg and open with notepad.

    Under the [Client] settings, you will notice MainThreadCPU = 3

    Change this to 0, save and restart rift.

    This will give you nice FPS increase and should spread the load between the cores better.
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