http://commons.oreilly.com/wiki/index.php?title=Talk:Cloud_computing_perspectives_and_questions&action=history&feed=atom 2013-05-24T20:14:44Z Revision history for this page on the wiki MediaWiki 1.11.0 http://commons.oreilly.com/wiki/index.php?title=Talk:Cloud_computing_perspectives_and_questions&diff=24820&oldid=prev 2009-07-13T03:12:10Z

<p>New page: Re: Universal Compute Unit (UcU) This is probably a useful unit, but it should be some form of &quot;balanced&quot; composite, like the old IBM &quot;a mip. a meg, a gig&quot;, meaning 1 MIP of CPU, 1 MB of...</p> <p><b>New page</b></p><div>Re: Universal Compute Unit (UcU) <br /> <br /> This is probably a useful unit, but it should be some form<br /> of &quot;balanced&quot; composite, like the old IBM &quot;a mip. a meg, a gig&quot;,<br /> meaning 1 MIP of CPU, 1 MB of memory and 1 GB of disk.<br /> I suspect this is what you were thinking of...<br /> <br /> If it were just a CPU unit, I could easily have a 10 UcU<br /> system which gave me half the performance of a 5 UcU system<br /> because the first one was low on I/O bandwidth and the<br /> second wasn't.<br /> <br /> It doesn't have to be a perfect balance: estimating quanta<br /> based on TPC benchmarks works surprisingly well, even though<br /> everyone games the benchmarks. Perhaps '''because''' they all<br /> game the benchmarks.<br /> <br /> --dave</div>

Davecb