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Intel Haswell Linux Performance Improved A Lot In 2013

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  • CFWhitman
    replied
    The fact that some people actually need it to say "DO NOT USE IN OVEN" on the bottom of plastic dishes makes me hesitant to make posts like Mark's.

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  • mendieta
    replied
    I'm cracking up. Mark, what does it take to have you in my next party? I have some pretty decent wines in my cellar ... and I promise ample supply of dead lizards in case we run a lan party.

    Leave a comment:


  • mark45
    replied
    Originally posted by Calinou View Post
    Are you serious about the 220 volts part?

    And by pins, do you mean the power cable? If you removed 2 pins on the CPU itself, it would no longer work.
    Yes, the problem might be with the electricity, one can measure it with a special gadget but it's old fashioned since you can do it quickly by sticking your tongue into the wall outlet, if it causes a little rash on your tongue - the electricity is OK. Though it's better to do this test in your bathroom so that your feet are a little wet so that you have a more precise feeling about the quality of the electricity in your house.

    And yes, I mean the CPU pins. Intel's last gen chips use hyper threading which trickles down through many CPU pins to your motherboard - this wastes a lot of time and electricity, if you remove some pins it will run quicker and consume less power because the CPU becomes smaller. That's why some people use a little hammer to chop off some silicon from the CPU here and there to make it lighter and faster, but since they often end up splitting the CPU you should do it the safe way and hit it with a dead lizard instead because it's softer than a hammer.

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  • Luke_Wolf
    replied
    Originally posted by Calinou View Post
    Are you serious about the 220 volts part?

    And by pins, do you mean the power cable? If you removed 2 pins on the CPU itself, it would no longer work.
    for anyone who can't read the dripping mockery in mark45's post... no don't do that, it should be obvious but just... don't

    Leave a comment:


  • peppercats
    replied
    Can I assume that this is just for the on-dye graphics and the actual CPU performance remains the same?

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  • Calinou
    replied
    Originally posted by mark45 View Post
    It typically means that your CPU has too many pins. Make sure you remove 2 CPU pins and see if the spikes still occur, if so, it could be
    due to high power voltage which you can test by getting rid of the power sockets from the wall and stick in your tongue, if it feels like more
    than 220 Watts you should call an electrician.
    Are you serious about the 220 volts part?

    And by pins, do you mean the power cable? If you removed 2 pins on the CPU itself, it would no longer work.

    Leave a comment:


  • mark45
    replied
    Originally posted by rudregues View Post
    http://openbenchmarking.org/embed.ph...ha=c4e7511&p=2
    When I have a bunch of spikes it's a bad signal, but when I have just two spikes... what it means?
    It typically means that your CPU has too many pins. Make sure you remove 2 CPU pins and see if the spikes still occur, if so, it could be
    due to high power voltage which you can test by getting rid of the power sockets from the wall and stick in your tongue, if it feels like more
    than 220 Watts you should call an electrician.

    Leave a comment:


  • Ericg
    replied
    Originally posted by rudregues View Post
    http://openbenchmarking.org/embed.ph...ha=c4e7511&p=2
    When I have a bunch of spikes it's a bad signal, but when I have just two spikes... what it means?
    First spike... GPU was in low power state and it took it a half second to ramp up, causing that frame to take longer. The other spike... who knows. Maybe momentary GPU deadlock?

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  • rudregues
    replied

    When I have a bunch of spikes it's a bad signal, but when I have just two spikes... what it means?

    Leave a comment:


  • mendieta
    replied
    This wasn't shown in the plots. But i think most of the performance gain was reflected in Ubuntu 13.10 already. The dramatic change was in kernel 3.10 and Mesa 9. It would have been nice to have Ubuntu 13.10 in the mix, really. But there seem to be some (not nearly as dramatic) improvements in the newest kernel, which is exciting.

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