VM v Physical Server Speeds Post: 302924533

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Top Forums UNIX for Dummies Questions & Answers VM v Physical Server Speeds Post 302924533 by drl on Monday 10th of November 2014 11:06:46 AM

11-10-2014

Registered User

Hi.

The only benchmark that makes any sense to me is your normal workload.

Suppose IT gave you a VM that allowed twice as many CPUs and/or a worderful array of SSD disks as you have on your physical machine, and that it allowed your workload to be processed in far less time on the VM. That would be a definite plus.

At a university computer center, whenever we would make changes, we would run a sample of user applications. If we saw a large increase or decrease in real time, we would look closely to try to determine the cause (it was almost always a failure of new code, many cases would crash, decreasing the real time, etc.).

Running benchmarks for a few megabytes would not be meaningful for me. I have run bonnie++ on different configurations (various RAID combinations, for example), so that might be useful if you let it run long enough -- 20-60 minutes on your physical machine, then compare it to runs on the VM.

Synthetic benchmarks are useful if they are similar to your day-to-day work, otherwise, they are perhaps better suited for water-cooler discussions.

While working at an NSF-funded lab, one book I referred to was The Art of Computer Systems Performance Analysis: Techniques for Experimental Design, Measurement, Simulation, and Modeling: Raj Jain: 9780471503361: Amazon.com: Books
See especially chapter 4, techniques and tools, but note that this is quite an old book.

Best wishes ... cheers, drl

drl

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LEARN ABOUT DEBIAN

mojomojo::formatter::amazon

MojoMojo::Formatter::Amazon(3pm)			User Contributed Perl Documentation			  MojoMojo::Formatter::Amazon(3pm)

   module_loaded
       Return true if the module is loaded.

NAME

       MojoMojo::Formatter::Amazon - Include Amazon objects on your page.

DESCRIPTION

       This is an url formatter. it takes urls containing amazon and /-/ or /ASIN/ and make a pretty formatted link to that object in the amazon
       web store.

       It automatically handles books/movies/dvds and formats them as apropriate. You can also pass 'small' as a parameter after the url, and it
       will make a thumb link instead of a blurb.

METHODS

   format_content_order
       Format order can be 1-99. The Amazon formatter runs on 5.

   format_content
       calls the formatter. Takes a ref to the content as well as the context object.

   get <asin>
       Connects to amazon and retrieves a Net::Amazon object based on the supplied ASIN number.

   small <property>
       Renders a small version of the formatter.

   blurb <property>
       renders a full width blurb of the product, suitable for reviews and such.

   DVD <property>
       Product information suitable for DVD movies.

   Book <property>
       Product information suitable for books.

   Music <property>
       Product information suitable for music CDs.

SEE ALSO

       MojoMojo, Module::Pluggable::Ordered, Net::Amazon.

AUTHORS

       Marcus Ramberg <mramberg@cpan.org

LICENSE

       This library is free software. You can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2011-02-12					  MojoMojo::Formatter::Amazon(3pm)

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