Development PC Upgrade?

Discussion in 'Indie Related Chat' started by higgipoker, Sep 23, 2015.

  1. higgipoker

    higgipoker New Member

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    So, I was all ready to order my shiny new i5 4690 3.5 GHz with 16Gb RAM to replace my 7 year old Core 2 Quad with 4Gb.

    Then I did a wee test... My dev PC runs Linux Mint but I also have an iMac for video editing etc, specs:

    2.8 GHz Intel Core i7 (mid 2011)
    8 GB 1333 MHz DDR3

    I use eclipse for development so was able to set up the same environment on both machines. Guess what. The old Core 2 Quad compiled my projects faster than the i7! I have solid state drives in both machines.

    So, to any hardware buffs out there, would I really experience a big difference on my dev machine by upgrading to a new i5? My unscientific test seems to suggest it might not really be worth it, though it seems really hard to believe. I had expected a CPU intensive task like compiling to receive a big shot in the arm with the i7, but for it to actually take longer puzzles me to say the least!
     
  2. bantamcitygames

    Administrator Original Member Indie Author Greenlit

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    That does seem hard to believe. Might there be other factors at play (e.g. iMac running iTunes in the background sucking up memory)?
     
  3. higgipoker

    higgipoker New Member

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    That's possible, I'm gonna try again later with a fresh boot on both machines. Though, I'd like to think the mac would still blow the older machine away even then!
     
  4. higgipoker

    higgipoker New Member

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    46 seconds on the i7, 50 seconds on the core 2 quad... not exactly a massive boost...
     
  5. higgipoker

    higgipoker New Member

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    Mystery solved, and I do feel a little silly : of course you have to specify the number of parallel jobs for the compiler.

    Now, with 7 parallel jobs, the i7 clocks in at 12 seconds vs core 2 (3 jobs) at 28 seconds.

    I have just ordered an i7 skylake kit and shall be collecting it later today :D
     
  6. bantamcitygames

    Administrator Original Member Indie Author Greenlit

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    How do they compare with the same number of threads?
     
  7. higgipoker

    higgipoker New Member

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    The 46 seconds vs 50 seconds was with both running a single process. I've actually just picked up and assembled the new i7 system, will report shortly :p
     
  8. higgipoker

    higgipoker New Member

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    lol 4.7 seconds using 8 threads :D
     
  9. higgipoker

    higgipoker New Member

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    Here's some figures for the new i7:

    Single job: 18.9 seconds
    2 jobs: 10.1 seconds
    4 jobs: 5.8 seconds
    8 jobs: 4.7 seconds

    So it seems the hyperthreading doesn't really give much benefit; an i5 would have been fine.
     

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