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  1. Replies
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    I don't think that the difference between CMT and...

    I don't think that the difference between CMT and SMT is so important for Bulldozer/Piledriver. The reason is that each module has a single instruction decoder. So as far as performance is concerned,...
  2. SMAP

    Not related but thanks for the cpuinfo. I can see that it show SMAP support there. To the best of my knowledge no Haswell ever shipped with SMAP so this is a first. Here are the new flags compared to...
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    But the i5-4690K and i7-4790K do! :P Well,...

    But the i5-4690K and i7-4790K do! :P

    Well, they are rather the exception (apart from the LGA 2011 ones) so you are right. Intel have segmented their CPU lines like a minefield.

    BTW, I...
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    My understanding is that this is a KVM port of...

    My understanding is that this is a KVM port of the, currently under development, XenGT solution for mediated pass-through. AFAIKT, it doesn't require VT-d. They shadow some privileged resources (like...
  5. Thanks for the feedback! So no SMAP in Haswell-E...

    Thanks for the feedback! So no SMAP in Haswell-E then :(

    To be fair, I couldn't find anything official from Intel that claims it will be present in Haswell. But lots of articles suggested it so I...
  6. Is SMAP there?

    Hi Michael,

    Nice rig you got there! :) Could you please provide the "flags" section of /proc/cpuinfo of both processors? Please!

    I'm particularly interested in the presence of the SMAP feature....
  7. Sorry, I misunderstood your post. It is, of...

    Sorry, I misunderstood your post. It is, of course, curious that the non-RAID set is faster in some circumstances.

    It may be possible if there are simultaneous requests for different areas of the...
  8. Well, I guess it depends on how it is submitted...

    Well, I guess it depends on how it is submitted to the kernel. If the read requests are small in size and are submitted sequentially (i.e. next request is issued after the the previous one completes)...
  9. Core i3-3220 is Ivy Bridge. Pentium G3220 is...

    Core i3-3220 is Ivy Bridge. Pentium G3220 is Haswell. You should have specified the complete CPU model name to avoid confusion. But I assume you have Pentium G3220 which is unequivocally Haswell.
    ...
  10. Well, I cannot say anything about the package...

    Well, I cannot say anything about the package manager but there's no decent Fedora mirror in my country (I have looked for one several times). Whereas the Ubuntu mirror is 1ms away and I download...
  11. This doesn't seem to be the case. From the link...

    This doesn't seem to be the case. From the link above:



    I interpret this to mean that there are no changes to host or guest drivers. Sounds too good to be true. But I guess it has performance...
  12. Does anyone here thinks that even LTS releases...

    Does anyone here thinks that even LTS releases see production deployment the next day after release? It will take months if not years. So there should be no big harm in using the latest kernel if it...
  13. I don't think that's the case. From...

    I don't think that's the case. From https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt



    With VT-d there would be no need to emulate these things. For the pass-through...
  14. The article clearly states that it's different....

    The article clearly states that it's different. Whereas passthrough gives the GPU to a particular VM, XenGT allows for sharing of the GPU between several VMs.
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    Thank you Michael for using real "spinning rust"...

    Thank you Michael for using real "spinning rust" HDD for the tests. The Raptor is not your typical HDD but it should be much more representative for real world scenarios than pure SSD tests.
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    Dude, consider upgrading your Ubuntu to 13.04 or...

    Dude, consider upgrading your Ubuntu to 13.04 or even 13.10. 12.04 is from more than a year before the Haswell launch. You can run your server-related stuff in a virtual machine where you can keep...
  17. Game console effect?

    Maybe with the RaspberryPi we will witness the game console effect? When every device is (almost) exactly the same as every other a lot of optimizations can be done for that particular device.
  18. More specifically, I would like to get an...

    More specifically, I would like to get an Supermicro X9SCL-F main board. It has IPMI 2.0 compatible BMC module with its own graphics controller. It doesn't make use of the CPU-integrated GPU. Then...
  19. 1. VNC is insufficient. I want sth with...

    1. VNC is insufficient. I want sth with synchronized audio and USB redirection. Something along the lines of SPICE. I want to connect to the VM, not to some server inside it. Because I might need to...
  20. That would be great. I would really like to have...

    That would be great. I would really like to have a setup where I have a server hidden in the closet that runs a virtual machine for my desktop and have full GPU acceleration while being accessed...
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