Compiling with gcc

A more real world benchmark to test the integer processing power of our Xeon servers is a Linux kernel compile. Although few people compile their own kernel, compiling other software on servers is a common task and this will give us a good idea of how the CPUs handle a complex build.

To do this we have downloaded the 3.11 kernel from kernel.org. We then compiled the kernel with the "time make -jx" command, where x is the maximum number of threads that the platform is capable of using. To make the graph more readable, the number of seconds in wall time was converted into the number of builds per hour.

Linux Kernel Compile

The Xeon D delivers at least 65% better performance than the Xeon E3s. Considering the low TDP, that is pretty amazing. The Xeon E5 delivers 30% more with 50% more cores - as the Xeon E5 is twice as expensive, the Xeon D holds a massive performance per dollar advantage. The brawny Broadwell cores of the Xeon D compile no less than 3.7 times faster than the small Silvermont cores of the Atom, meaning that compiling definitely favors the more sophisticated cores. 

If you regularly compile large projects, the Xeon D is one of the best choices you have - even compared to a highly clocked Core i7 solutions. The cheaper quad core i7s will perform like the Xeon E3-1240, the equally priced ($583) i7-5930k will do about 50% better, still below the Xeon D. The Xeon D offers you integrated dual 10 Gb Ethernet, SATA, USB, which should offer lower latency. The Xeon D can also support twice as much memory (128 GB vs 64 GB) and offer you a much lower power bill (45W vs 140W TDP), making hardware decisions around compilation based projects an easy choice to make.

Multi-Threaded Integer Performance HPC: Fluid Dynamics
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  • Krysto - Tuesday, June 23, 2015 - link

    Betteridge law.
  • Metaluna - Tuesday, June 23, 2015 - link

    ...fails in this case. Did you read the review?
  • CajunArson - Tuesday, June 23, 2015 - link

    While desktop Broadwell isn't all that great, these server parts really show off Intel's accomplishments in improving power efficiency and performance-per-watt with 14nm.

    ARM has a huge hill to climb to really compete with these parts, and we've already seen AMD effectively skip its first iteration of an ARM product because they probably got wind of the Xeon D and decided they would have to do both a die-shrink and completely customized ARM core just to keep up.
  • The_Assimilator - Tuesday, June 23, 2015 - link

    I very much doubt whether we'll ever see another server CPU from AMD, regardless of ARM cores or not. If they even manage to get Zen out the door, *and* it's not another massive flop, I will be impressed.
  • Refuge - Tuesday, June 23, 2015 - link

    I root for them everyday, but lets not give them too big of a hill to climb with a broken leg now. lol
  • extide - Tuesday, June 23, 2015 - link

    Take it easy man, AMD is not going down the drain any time soon, and we WILL see some future server oriented parts come from them. But how fast will they be? That's the question and we wont know for a while...
  • Kjella - Tuesday, June 23, 2015 - link

    Really? Last quarter they had a $187 million total comprehensive loss on $1030 million in revenue, even if you exclude the restructuring cost they lost $100 million for a -10% deficit. The stockholder's equity is almost gone with $17 million left, after that getting funding or a credit limit will become much harder.

    And Q2 is probably going to be another bloody quarter with no major CPU or GPU launches and firesales of old Win8 stock in preparation for Win10. The console ramp-up is usually in Q3 in preparation for Christmas, not before the summer. Last quarter's loss they took almost entirely from their cash reserves, they're now in the lower end of what they need to operate, if they lose this quarter too they must cut where it hurts bad.
  • Guspaz - Tuesday, June 23, 2015 - link

    When we needed a low-power and low-cost server solution, we went with a desktop i3, because for some reason Intel supports ECC RAM on the i3 and lower, but not in the i5 and higher.
  • julianb - Tuesday, June 23, 2015 - link

    Very interested in this SOC.

    If possible could we see how the Xeon D deal with Cinebench Multithreaded test?
    I am into 3D CPU rendering and would like to know how does the Xeon D-1540 compare to say i7-3930K or i7-4790K.
    I realize the purpose of Xeon D-1540's existence is different but still...
    Thank you.
  • MrSpadge - Saturday, June 27, 2015 - link

    An eco-tuned 5820K seem better. I don't suppose you're going to render 24/7 all the time, so the electricity savings from the 14 nm Broadwell will have a hard time making up for the massive difference in initial cost.

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