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QEMU 1.3.0 Picks Up Many New Features

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  • QEMU 1.3.0 Picks Up Many New Features

    Phoronix: QEMU 1.3.0 Picks Up Many New Features

    QEMU 1.3.0 was released on Monday afternoon and supports a large number of new features for this open-source package that's common to the Linux virtualization stack...

    http://www.phoronix.com/vr.php?view=MTI0MTg

  • #2
    Get faster

    I hope it gets faster.

    I run the Android emulator to emulate ARM on my x86 computer.
    It is slow as shit.

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    • #3
      Originally posted by uid313 View Post
      I hope it gets faster.

      I run the Android emulator to emulate ARM on my x86 computer.
      It is slow as shit.
      yea, performance is where qemu falls behind compared to pretty much every other vm out there. i find that weird because xen is qemu based and its one of the fastest.

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      • #4
        Originally posted by schmidtbag View Post
        yea, performance is where qemu falls behind compared to pretty much every other vm out there. i find that weird because xen is qemu based and its one of the fastest.
        I don,'t have performance problems with qemu (using kvm), but uid313 talks about emulating an ARM machine on an x86 or amd64 host, which necessarily adds the overhead of JIT-compiling ARM machine code to x86/amd64 machine code.

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        • #5
          Originally posted by schmidtbag View Post
          yea, performance is where qemu falls behind compared to pretty much every other vm out there. i find that weird because xen is qemu based and its one of the fastest.
          I assume you're talking about para-virtualized qemu and not qemu-kvm, right?
          DEV: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB + 2x3TB, GTX780, F21/x86_64, Dell U2711.
          SRV: Intel S5520SC, 2xX5680, 36GB, 4x2TB, GTX550, F21/x86_64, Dell U2412..
          BACK: Tyan Tempest i5400XT, 2xE5335, 8GB, 3x1.5TB, 9800GTX, F21/x86-64.
          LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F21/x86_64.

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          • #6
            Yeah exactly. Qemu is only part of a balanced breakfast. It can do full CPU emulation, but that will always be slow.


            These are really awesome updates, and I'm glad to see it improving. I've been using KVM a lot in the lab recently, and it's been working really well.

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