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[Fwd: Re: [Xen-users] Differences in performance between file and LVMbased images]


  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Alex Iribarren <Alex.Iribarren@xxxxxxx>
  • Date: Thu, 24 Aug 2006 17:28:22 +0200
  • Delivery-date: Thu, 24 Aug 2006 08:29:21 -0700
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I always forget to reply to all, sorry :(
--- Begin Message ---
Hi Roger,

I totally agree with all your comments, I also thought several of the
results were very strange, which is why I redid the tests a couple of
times. Actually, the original test was simpler (and I didn't test as
many things). When I saw the results I was getting I changed a couple of
things, like the synchronous write and the random reads.

The reason why I didn't do a larger test was because I didn't have
enough space for a larger partition, but I'm going to make a few changes
and redo the test.

Anyway, I guess this serves as a reference point for what we can expect
when using relatively small files.

Roger Lucas wrote:
> As one final question, what is the scheduling configuration for Dom0 and
> DomU with these tests?  Have you tried different configurations
> (period/slice) for the DomU tests to see if it makes any difference?

I don't know anything about scheduling configurations, so I guess I used
whatever is the default.

Cheers,
Alex

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