I am now a member of SAP's Virtualization and Cloud Management group.
Table of Contents
- Professional Functions & Memberships
- Awards and Recognitions
- Publications, Selected Presentations, and Reports
- Professional Activities
- Projects
- Supervised Theses
- Teaching
- Affiliations
Professional Functions & Memberships
SPEC - "Standard Performance Evaluation Corporation"
Representative of SAP to SPEC Research Group
Vice-Chair of SPEC Research Group
Association for Computing Machinery (ACM)
Member
Event Processing Technical Society
Member
Gesellschaft für Informatik e.V.
Member
Awards / Recognitions
-
SPEC Distinguished Dissertation Award 2011
Awarded on April 24, 2012 at ICPE 2012 in Boston.
-
SPECtacular Award 2009
Awarded by the SPEC President Walter Bays on January 30, 2010 at SPEC's Annual Meeting in San Jose, CA.
-
SPECtacular Performance Award 2007
Awarded by the SPEC President Walter Bays (Sun Microsystems) on January 27, 2008 at SPEC's Annual Meeting in San Francisco, CA.
-
SPECtacular Award 2006
for service as Lead Developer of the SPECjms2007 Benchmark developed by SPEC's Open Systems Group (OSG). Awarded by the SPEC President Walter Bays (Sun Microsystems) on January 24, 2007 at SPEC's Annual Meeting in Austin, TX.
Publications, Selected Presentations and Reports
| 2013 |
|---|
|
A Robust Optimization for Proactive Energy Management in Virtualized Data Centers Ibrahim Takouna, Wesam Dawoud, Kai Sachs, Christoph Meinel ACM/SPEC Internation Conference on Performance Engineering - Work in Progress Track, ICPE 2013, 2013 [BibTeX] |
|
Modeling Event-based Communication in Component-based Software Architectures for Performance Predictions Christoph Rathfelder, Benjamin Klatt, Kai Sachs, Samuel Kounev Journal of Software and Systems Modeling (SoSyM), Springer Verlag, 2013 accepted for publication [BibTeX] |
|
Cloud Usage Patterns: A Formalism for Description of Cloud Usage Scenarios Aleksandar Milenkoski, Alexandru Iosup, Samuel Kounev, Kai Sachs, Piotr Rygielski, Jason Ding, Walfredo Cirne, Florian Rosenberg Technical Report, SPEC Research Group, 2013 [PDF] [BibTeX] |
| 2012 |
|
Interactive Performance Monitoring of a Composite OLTP & OLAP Workload Anja Bog, Kai Sachs, Hasso Plattner Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2012, May 2012 [PDF] [BibTeX] |
|
Resilience Benchmarking Marco Vieira, Henrique Madeira, Kai Sachs, Samuel Kounev In Alberto Avritzer, Aad Moorsel van, Marco Vieira, Katinka Wolter: Resilience Assessment and Evaluation, Springer, 2012 [PDF] [BibTeX] |
|
Performance Modeling and Analysis of Message-oriented Event-driven Systems Kai Sachs, Samuel Kounev, Alejandro Buchmann Software and Systems Modeling, Springer, 2012 The final publication is available at http://www.springerlink.com/content/f1u77n8176q71860/ [PDF] [BibTeX] |
|
Performance Evaluation and Benchmarking of Event-Based Systems Kai Sachs ACM/SPEC International Conference on Performance Engineering (ICPE 2012) , 2012 Invited Abstract [PDF] [BibTeX] |
|
Normalization in a Mixed OLTP and OLAP Workload Scenario Anja Bog, Kai Sachs, Alexander Zeier, Hasso Plattner Third TPC Technology Conference on Performance Evaluation & Benchmarking (TPCTC), VLDB 2011 , Lecture Notes in Computer Science, No. 7144, 2012 [PDF] [BibTeX] |
|
Benchmarking in the Cloud: What it Should, Can, and Cannot Be Alexander Alexandrov, Enno Folkerts, Kai Sachs, Alexandru Iosup, Volker Markl, Cafer Tosun 4. TPC Technology Conference on Performance Evaluation & Benchmarking (TPCTC), VLDB 2012 , 2012 [PDF] [BibTeX] |
| 2011 |
|
COLUMN: Paper abstracts of the second international conference on performance engineering (ICPE 2011) David J. Lilja, Raffaela Mirandola, Kai Sachs SIGMETRICS Perform. Eval. Rev., Vol. 39, No. 3, ISSN 0163-5999, ACM, New York, NY, USA, December 2011 [BibTeX] |
|
Benchmarking Database Design for Mixed OLTP and OLAP Workloads Anja Bog, Kai Sachs, Alexander Zeier International Conference on Performance Engineering (ICPE 2011), 2011 [PDF] [BibTeX] |
|
ACM SIGSOFT Software Engineering Notes : Paper Abstracts of the 2nd International Conferernce on Performance Engineering (ICPE 2011) David J. Lilja, Raffaela Mirandola, Kai Sachs ISSN 0163-5948, ACM, New York, NY, USA, 2011 [BibTeX] |
|
ACM SIGMETRICS Performance Evaluation Review: Paper abstracts of the second international conference on performance engineering (ICPE 2011) David J. Lilja, Raffaela Mirandola, Kai Sachs ISSN 0163-5948, ACM, New York, NY, USA, 2011 [BibTeX] |
| 2010 |
|
A Logistics Workload for Event Notification Middleware Stefan Appel, Kai Sachs In Kai Sachs, Ilia Petrov, Pablo Guerrero: From Active Data Management to Event-Based Systems and More, Lecture Notes in Computer Science 6462, ISBN 978-3-642-17225-0, Springer, November 2010 [PDF] [BibTeX] |
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Towards Benchmarking of AMQP Stefan Appel, Kai Sachs, Alejandro Buchmann 4th ACM International Conference on Distributed Event-Based Systems (DEBS), July 2010 [PDF] [BibTeX] |
|
Quality of Service in Event-based Systems Stefan Appel, Kai Sachs, Alejandro Buchmann 22nd GI-Workshop on Foundations of Databases (GvD), Bad Helmstedt, Germany, May 2010 [PDF] [BibTeX] |
|
Benchmarking Publish/Subscribe-based Messaging Systems Kai Sachs, Stefan Appel, Samuel Kounev, Alejandro Buchmann Database Systems for Advanced Applications: DASFAA 2010 International Workshops: BenchmarX'10, LNCS, Berlin, Heidelberg, Springer-Verlag, 2010 [PDF] [BibTeX] |
|
Performance Modeling and Benchmarking of Event-Based Systems (PhD Thesis) Kai Sachs TU Darmstadt, ISBN 9783868443530, Sierke Verlag, 2010 SPEC Distinguished Dissertation Award 2011 [PDF] [BibTeX] |
|
Statistical Inference of Software Performance Models for Parametric Performance Completions Jens Happe, Dennis Westermann, Kai Sachs, Lucia Kapova 6th International Conference on the Quality of Software Architectures, QoSA, Lecture Notes in Computer Science, 2010 [PDF] [BibTeX] |
| 2009 |
|
Benchmarking and Performance Modeling of Event-Based Systems Samuel Kounev, Kai Sachs it - Information Technology , Vol. 51, No. 5 , Oldenbourg Wissenschaftsverlag, Munich, Germany, October 2009 [Journal] [PDF] [BibTeX] |
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Performance evaluation of message-oriented middleware using the SPECjms2007 benchmark Kai Sachs, Samuel Kounev, Jean Bacon, Alejandro Buchmann Performance Evaluation, Vol. 66, No. 8, Elsevier Science, August 2009 [PDF] [BibTeX] |
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Benchmarking of Message-Oriented Middleware Kai Sachs, Samuel Kounev, Stefan Appel, Alejandro Buchmann Proceedings of the International Conference on Distributed Event-Based Systems (DEBS 2009), Nashville, TN, USA, July 2009 [Conference] [PDF] [BibTeX] |
|
Event-Based Applications and Enabling Technologies Annika Hinze, Kai Sachs, Alejandro Buchmann Proceedings of the International Conference on Distributed Event-Based Systems (DEBS 2009), Nashville, TN, USA, July 2009 Keynote of A. Buchmann [Conference] [PDF] [BibTeX] |
|
A Performance Test Harness For Publish/Subscribe Middleware Kai Sachs, Samuel Kounev, Stefan Appel, Alejandro Buchmann SIGMETRICS/Performance 2009 Demo Competition, June 2009 [Conference] [PDF] [BibTeX] |
| 2008 |
|
Survey of Event-Based Applications and Enabling Technologies Annika Hinze, Kai Sachs, Alejandro P. Buchmann Technical Report, No. TUD-CS-2008-109, Technische Universität Darmstadt, Fachbereich Informatik, Darmstadt, Germany, September 2008 [BibTeX] |
|
Performance Evaluation of Embedded ECA Rule Engines: a Case Study Pablo E. Guerrero, Kai Sachs, Stephan Butterweck, Alejandro Buchmann Proceedings of the 5th European Performance Engineering Workshop (EPEW 2008), Lecture Notes in Computer Science, No. 5261, ISBN 978-3-540-87411-9, Springer LNCS, Heidelberg, Germany, September 2008 [PDF] [BibTeX] |
|
A Methodology for Performance Modeling of Distributed Event-Based Systems Samuel Kounev, Kai Sachs, Jean Bacon, Alejandro P. Buchmann Proceedings of 11th IEEE International Symposium on Object/component/service-oriented Real-time distributed Computing (ISORC 2008), IEEE, May 2008 [PDF] [BibTeX] |
|
SPECjms2007 - A novel benchmark and performance analysis framework for message-oriented middleware Samuel Kounev, Kai Sachs March 2008 DEV2DEV Article, O'Reilly Publishing Group [Website] [BibTeX] |
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Kaffeekunde - SPECjms2007 misst Message Oriented Middleware Kai Sachs, Samuel Kounev iX - Magazin für professionelle Informationstechnik, No. 2, Heise Zeitschriften Verlag, Hannover, Germany, February 2008 [BibTeX] |
| 2007 |
|
Workload Characterization of the SPECjms2007 Benchmark Kai Sachs, Samuel Kounev, Jean Bacon, Alejandro Buchmann Proceedings of the 4th European Performance Engineering Workshop (EPEW 2007), Springer LNCS, September 2007 [Conference] [PDF] [BibTeX] |
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Pushing Business Data Processing Towards the Periphery Pablo Guerrero, Kai Sachs, Mariano Cilia, Christof Bornhövd, Alejandro Buchmann 23rd International Conference on Data Engineering (ICDE'07), Istanbul, Turkey, IEEE Computer Society, April 2007 [Conference] [PDF] [BibTeX] |
|
Designing a Workload Scenario for Benchmarking Message-Oriented Middleware Kai Sachs, Samuel Kounev, Marc Carter, Alejandro Buchmann Proceedings of the 2007 SPEC Benchmark Workshop, SPEC, Austin, Texas, USA, January 2007 [Conference] [PDF] [BibTeX] |
| 2006 |
|
Evaluating RFID Infrastructures Sebastian Frischbier, Kai Sachs, Alejandro Buchmann 2. Workshop RFID Intelligente Funketiketten - Chancen und Herausforderungen, Erlangen, Germany, ISBN 978-3-800-72976-0, VDE Verlag, July 2006 [PDF] [BibTeX] |
|
RFID Seminar WS 05/06 Final Report (Seminar Report) Kai Sachs, Pablo Guerrero, Mariano Cilia, Alejandro Buchmann Technical Report, Technische Universität Darmstadt, Fachbereich Informatik, Darmstadt, Germany, March 2006 [PDF] [BibTeX] |
|
Message Types and Interfaces Between Components in SPECjms Kai Sachs, Samuel Kounev Technical Report, No. DVS06-2, SPEC OSG Java Subcommittee, 2006 [BibTeX] |
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Workload Scenario for SPECjms "Supermarket Supply Chain" Kai Sachs, Samuel Kounev Technical Report, No. DVS06-1, SPEC OSG Java Subcommittee, 2006 [BibTeX] |
Patents
-
Systems and methods for processing auto-id data
C. Bornhoevd, M. Cilia, P. Guerrero, K. Sachs, and A. Buchmann
Assignee: SAP AG, Application number: 11/429,151 Publication number: US 2007/0260470 A1.
Books, Proceedings & Chapters
-
Performance Modeling and Benchmarking of Event-Based Systems

PhD Thesis, 2010.
SPEC Distinguished Dissertation Award 2011
[PDF] [BibTeX]
@phdthesis{ KaiSachs-Thesis-2010, title = {Performance Modeling and Benchmarking of Event-Based Systems}, author = {Kai Sachs}, isbn = {978-3868443530}, publisher = {Sierke Verlag}, year = {2011}, pdf = {\url{http://www.dvs.tu-darmstadt.de/staff/ksachs/PerMod_Benchmarking_EBS.pdf}}, school = {TU Darmstadt} } -
Proceeding of the second joint WOSP/SIPEW international conference on Performance engineering - ACM / SPEC ICPE'11

Samuel Kounev, Vittorio Cortellessa, Raffaela Mirandola, David J. Lilja, Kai Sachs (Eds.)
ACM, 2011.
[BibTeX]@proceedings{icpe:2011, title = {ICPE '11: Proceeding of the second joint WOSP/SIPEW international conference on Performance engineering}, year = {2011}, isbn = {978-1-4503-0519-8}, location = {Karlsruhe, Germany}, publisher = {ACM}, address = {New York, NY, USA}, } -
From Active Data Management to Event-Based Systems and More

Kai Sachs, Ilia Petrov, Pablo Guerrero (Eds.)
Springer LNCS 6462, Papers in Honor of Alejandro Buchmann on the Occasion of His 60th Birthday, 2010.
[BibTeX]@proceedings{ SaPeGue10, title = {From Active Data Management to Event-Based Systems and More - Papers in Honor of Alejandro Buchmann on the Occasion of His 60th Birthday}, editor = {Kai Sachs and Ilia Petrov and Pablo Guerrero}, series = {Lecture Notes in Computer Science}, volume = {6462}, month = {nov}, year = {2010}, publisher = {Springer}, isbn = {978-3-642-17225-0}, doi = {DOI: 10.1007/978-3-642-17226-7}, language = {English}, website = {http://www.springer.com/computer/communication+networks/book/978-3-642-17225-0?changeHeader=true} } -
Computer Performance Evaluation and Benchmarking

David Kaeli and Kai Sachs (Eds.)
Springer LNCS 5419, Proceedings of the SPEC Benchmark Workshop 2009
[BibTeX]@proceedings{SPEC-2009, editor = {David R. Kaeli and Kai Sachs}, title = {Computer Performance Evaluation and Benchmarking, SPEC Benchmark Workshop 2009, Austin, TX, USA, January 25, 2009. Proceedings}, booktitle = {SPEC Benchmark Workshop}, publisher = {Springer}, series = {Lecture Notes in Computer Science}, volume = {5419}, year = {2009}, isbn = {978-3-540-93798-2}, ee = {http://dx.doi.org/10.1007/978-3-540-93799-9}, bibsource = {DBLP, http://dblp.uni-trier.de} } -
Performance Evaluation: Metrics, Models and Benchmarks

Samuel Kounev, Ian Gorton and Kai Sachs (Eds.)
Springer LNCS 5119, Proceedings of the 2008 SPEC International Performance Evaluation Workshop (SIPEW 2008), 2008.
[BibTeX]@proceedings{sipew-2008, editor = {Samuel Kounev and Ian Gorton and Kai Sachs}, title = {Performance Evaluation: Metrics, Models and Benchmarks, SPEC International Performance Evaluation Workshop, SIPEW 2008, Darmstadt, Germany, June 27-28, 2008. Proceedings}, booktitle = {SIPEW}, publisher = {Springer}, series = {Lecture Notes in Computer Science}, volume = {5119}, year = {2008}, isbn = {978-3-540-69813-5}, }
Talks
-
SPECjms2007 - An Overview
SAP, Walldorf, Germany, 17.04.2007 -
Benchmarking and Modelling of Message-Oriented Middleware
FZI Forschungszentrum Informatik, Karlsruhe, Germany, 24.06.2009 -
Benchmark Engineering: Current Trends and New Challenges in Benchmarking
TCS Symposium - Architecture and Design of High Performance Systems, Mumbai, India, 8.1.2013 -
Current trends and new challenges in Benchmark Research
AMPLab, UC Berkeley, US, 19.03.2013
Professional Activities
Conference Organisation
Program Committees
I was / I am serving as PC Member of the
- 30th IEEE International Conference on Data Engineering (ICDE) 2014
- ACM/SPEC International Conference on Performance Engineering (ICPE) 2012 2013
- 10th International Conference on Autonomic Computing (ICAC) 2013
- 42nd International Conference on Parallel Processing (ICPP) 2013
- TPC Technology Conference on Performance Evaluation and Benchmarking (TPC TC) 2010 2011
- Workshop on Data Streams and Event Processing (DSEP) 2011 2013
- ACM International Conference on Distributed Event-Based Systems (DEBS) 2010 (Poster PC member), 2012 (Demo PC member), 2013 (Posters & Demos PC member),
- SPEC Benchmark Workshop 2009
- SPEC International Performance Evaluation Workshop (SIPEW) 2008
Selected Reviewer/Referee Activities
- Member of Editorial Board CSI Transactions on ICT
- Conferences: ACM SIGMOD 2005/06, EDBT 2008, VLDB 2006, RDDS 2006, ICDE 2007, ICDCS 2006/08/09, ACM/SPEC ICPE 2010/11
- Journals: Journal of Distributed and Parallel Databases, Datenbanken Spektrum, Springer Computing, IEEE Transactions on Software Engineering, IEEE Transaction on Cloud Computing
Projects
-
A Benchmark for Message-Oriented Middleware SPECjms2007
Project at SPEC - Standard Performance Evaluation Corporation.
Role: Development Lead -
Performance and Scalability Analysis of SAP's JMS Implementation
Project with SAP AG -
Benchmarking of HornetQ 2.0.0.GA
Project with JBoss HornetQ -
Benchmarking of Apache ActiveMQ 5.3
Project with Apache Active MQ -
Performance Modelling of Event-Based Realtime Systems
Project with Infosys Technologies Ltd., Bangalore / India, April 2006 - June 2006. -
Enhance the performance of the AutoID Infrastructure
Project with SAP Labs Palo Alto, July 2005 - March 2006. -
Performance Evaluation of SAP's AutoID Infrastructure
Project with SAP Labs Palo Alto, October 2004 - May 2005.
Supervised Theses
Past
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"Performance Analysis of Java in the Context of Virtualiztion" , Stefan Appel, 2008.
-
"Marktgetriebenen Kapazitäts- und Performance- Planung am Beispiel einer Telekom-Systemkette" , Yves Njipwo Nguenda, 2008.
In cooperation with T-Com -
"Modeling and Performance Evaluation of an RFID Scenario Applying EPCglobalís EPCIS Architecture", Eva Twellmeyer, 2008.
In cooperation with SAP Research Dresden - "JMS-Server Benchmark mit SPECjms2007", Michael Schneider, 2008.
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"Performance Modeling of Java EE Applications using LQNs and QPNs, Frank Heimburger, 2007.
In cooperation with Infosys Technologies Ltd., Bangalore / India
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"Service-Oriented Enterprise Integration Method", Liisel Murre, 2007.

In cooperation with Deutsche Amphibolin-Werke (DAW) - "Performance Evaluation of an ECA Rule Engine on Small Devices", Stephan Butterweck, 2007.
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"Semantic Extensions of Business Process Modeling Tools", Florian Dörr, 2007.
In cooperation with SAP Research Karlsruhe -
"Der Einsatz von RFID-Technik am Flughafen", Manuella Müller, 2006.
In cooperation with Fraunhofer-Institut für Materialfluss und Logistik
Affiliations
TU Darmstadt
Databases and Distributed Systems (DVS) - Former Research Member
Karlsruhe Institute of Technology (KIT)
Descartes Research Group - Associated Research Member
Teaching
| Winter 09-10 | Database Systems II |
| Summer 2009 | Seminar: Performance Engineering in Practice: Benchmarks and Related Concepts |
| Winter 08-09 | Database Systems II |
| Winter 07-08 | Database Systems II |
| Winter 06-07 | Database Systems II |
| Winter 05-06 | Database Systems II |
| Winter 2005/06 | Seminar: RFID Technologies |


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