[TriLUG] [Novalug] Comparing Clouds; A trivial test. (fwd)

[Warren Myers]

Hey, Maxwell - I think I spotted a bug on line 43 .. 1%1000000000 will
never be true :)


On Mon, Oct 28, 2013 at 3:02 AM, Maxwell Spangler <
maxlists at maxwellspangler.com> wrote:

> Sorry!
>
> While I did actually setup an instance on Google Compute Engine, I
> didn't remember to run my little test on it.  Then, due to the cost of
> GCE, I shut my instance down pretty fast.  Porting was my objective, not
> benching.
>
> The code for my simple little C program is here:
>
> https://github.com/maxwax/cpu-looper
>
> As you can see, there really isn't much to it and its more comments than
> actual code which is just *eight* lines.  The only point of this program
> is to generate constant user space CPU activity and it does that
> perfectly.  I dressed up the code with comments so others (including
> novices) can experiment with it.
>
> But the real point of this truly exploratory experiment was just to see
> if cloud providers are heavily over committing resources and how
> multi-tenancy would impact a user who simply wants to run long
> CPU-focused jobs.  Measuring storage, network, etc, is too complicated
> for me right now but definitely an area I expect to be working in more.
>
> I liked GCE while just using it for a few hours.  It was nice to see KVM
> being used instead of Xen, performance was snappy, and there are some
> clever things like gcutil being used on the client.  I'd like to work
> with it more, but it's too expensive for pet projects right now :(.
>
> Cheers,
>
>
> --
> Maxwell Spangler
> ========================================================================
> Linux System Administration / Virtualization / Development / Computing
> Services
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> Fort Collins, Colorado
> http://www.maxwellspangler.com
> --
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*Warren Myers*
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