Deconstructing Amazon EC2 Spot Instance Pricing, Orna Agmon Ben-Yehuda, Muli Ben-Yehuda, Assaf Schuster, Dan Tsafrir. ACM Transactions on Economics and Computation
TEAC), vol 1, No. 3, Article 16, September 2013.
This is an extended version of an earlier conference paper by the same name, including cloud trace driven simulations and a postmortem section, showing that Amazon's prices are no longer random.
The nonkernel: A Kernel Designed for the Cloud Muli Ben-Yehuda, Omer Peleg, Orna Agmon Ben-Yehuda, Igor Smolyar, and Dan Tsafrir. In proceedings of the 4th Asia-Pacific Workshop on Systems (APSYS), 2013.
The nonkernel: A Kernel Designed for the Cloud Muli Ben-Yehuda, Omer Peleg, Orna Agmon Ben-Yehuda, Igor Smolyar, and Dan Tsafrir. In proceedings of the 4th Asia-Pacific Workshop on Systems (APSYS), 2013.
The Resource-as-a-Service (RaaS) Cloud, Orna Agmon Ben-Yehuda, Muli Ben-Yehuda, Assaf Schuster, Dan Tsafrir. In proceedings of the 4th USENIX Workshop on Hot Topics in Cloud Computing (HotCloud) 2012. (Acceptance ratio 32%=24/75). bibtex.
The paper was covered by the press: Interview with Neil Savage in Communications of the ACM, August 2012.
"ExPERT: Pareto-Efficient Task Replication on Grids and Clouds", Orna Agmon Ben-Yehuda, Assaf Schuster, Artyom Sharov, Mark Silberstein, Alexandru Iosup. IEEE International Parallel and Distributed Processing Symposium (IPDPS) 2012. (acceptance ratio 21%=118/569).
Keywords: Scheduling; Cloud computing; Provisioning policies; Pareto scheduling; bags of tasks; Empirical performance analysis; Simulation-based scheduling.
Deconstructing Amazon EC2 Spot Instance Pricing, Orna Agmon Ben-Yehuda, Muli Ben-Yehuda, Assaf Schuster, Dan Tsafrir. The 3rd IEEE International Conference on Cloud Computing Technology and Science (CloudCom 2011), Athens, Greece. Acceptance ratio: 24%. bibtex. An extended version appeared in ACM Transactions on Economics and Computation (TEAC).
This paper builds on data from two websites which are no longer active. Their data, however, is still available from SpotWatch and CloudExchange. Caveat emptor: since Amazon introduced a second Linux instance type, the SpotWatch data holds the two price histories together, and they appear like two price bands (or like a wider band, in some cases).
Also, since this work first appeared, Amazon radically changed their pricing mechanism,
as can be seen on the last slide of the presentation,
so prices no longer change according to the mechanism described int he paper.
A 3D Collision Scheme for Compressible Media in a General Connectivity Lagrangian Formulation, Nir Bar-Gill, Orna Agmon, Nadav Har'el and Jonathan Nemirovski, Eighth International Conference on Structures Under Shock and Impact, 2004. Presented at the 7th International Conference on Computational Modelling of Free and Moving Boundary Problems, Albuquerque NM, November 2003.
Reviewer for NSDI 2021, HOTCLOUD 2015, ACM TEAC, IEEE Transactions on Parallel and Distributed Systems (TPDS), and IEEE Transactions on Cloud Computing (TCC).
Spotprice: A matlab simulator that creates price traces according to our understanding of Amazon EC2's algorithm in the past and present.
A dynamic memory memcached: memcached that can kill memory slabs to free memory, and change its target memory on the fly. On Github.
make_site: A package for creating static web pages with menu, using css and tables. Used by haifux.org.
syscalltrack where I contributed some perl scripting and webmastering.
Community Activity
I prefer programming, using and administrating Linux.
I used to be a proud Haifux member.
I am one of Hamakor's founding members. I served on the board in 2005-2006, but I am no longer a member.