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<p style="margin-bottom: 0cm; margin-top: 0pt;">On Monday, September
26th
(TOMORROW), at
18:30, Haifux will gather to hear Orna Agmon Ben-Yehuda talk about</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;"><br>
</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;"> Deconstructing
Amazon EC2 Spot Instance Pricing</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;"><br>
</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;">Abstract</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;"><br>
</p>
Cloud providers possessing large quantities of spare capacity must
either incentivize clients to purchase it or suffer losses. Amazon is
the first cloud provider to address this challenge, by allowing clients
to bid on spare capacity and by granting resources to bidders while
their bids exceed a periodically changing spot price. Amazon publicizes
the spot price but does not disclose how it is determined.
<br>
By analyzing the spot price histories of Amazon's EC2 cloud, we reverse
engineer how prices are set and construct a model that generates prices
consistent with existing price traces. We find that prices are usually
not market-driven as sometimes previously assumed. Rather, they are
typically generated at random from within a tight price interval via a
dynamic hidden reserve price. Our model could help clients make
informed bids, cloud providers design profitable systems, and
researchers design pricing algorithms.
<br>
Joint work with Muli Ben-Yehuda, Assaf Schuster, Dan Tsafrir: <a
href="http://www.cs.technion.ac.il/users/wwwb/cgi-bin/tr-info.cgi/2011/CS/CS-2011-09">Technion
CS Tech Report CS-2011-09</a>.
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<br>
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bidimailui-generated="true">We meet in Taub (CS Faculty) building,
room 6. For instructions see: <a class="moz-txt-link-freetext"
href="http://www.haifux.org/where.html">http://www.haifux.org/where.html</a>
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<br>
Attendance is free, and you are all
invited!
<br>
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Future Haifux talks include:<br>
<p style="margin-bottom: 0cm; margin-top: 0pt;"><br>
</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;">10/10/2011 How to
Participate in the Linux Kernel Development (and Why) by Baruch Siach</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;"></p>
<p style="margin-bottom: 0cm; margin-top: 0pt;">31/10/2011 Better
Performance in Virtualization by Abel Gordon<br>
</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;">14/11/2011 GPGPU -
Motivation and Architecture by Ofer Rosenberg</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;">28/11/2011 GPGPU -
OpenCL by Ofer Rosenberg</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;">12/12/2011 GPGPU - Case
studies, Do's and Dont's by Ofer Rosenberg</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;">26/12/2011 GPGPU -
Tools and profiling for performance by Ofer Rosenberg</p>
<p style="margin-bottom: 0cm; margin-top: 0pt;"><br>
</p>
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<br>
<div bidimailui-direction-uniformity="ltr" style="direction: ltr;"
bidimailui-generated="true">We are always interested in hearing your
talks and ideas. If you wish to give a talk, hold a discussion, or just
plan some event Haifux might be interested in, please contact us at <a
class="moz-txt-link-abbreviated" href="mailto:webmaster@haifux.org">webmaster@haifux.org</a>
</div>
<pre class="moz-signature" cols="72">--
Web: <a class="moz-txt-link-freetext" href="http://www.billauer.co.il">http://www.billauer.co.il</a>
</pre>
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