1. DR. REMA HARIHARAN
Rema.hariharan@gmail.com, Phone: 512-426-6532
Summary profile
20 years of work experience with expertise in:
• Optimization, workload analysis, performance analysis, benchmarking
• Operations Research and Statistics
• Modeling and performance optimization
• Supply chain analysis, Credit Management Analysis
Elected by SPEC to lead key committees:
• Chairperson person for Cloud sub-committee (2010-2012)
• Vice-Chair of Open System Steering Committee (2009-2012)
• Chairperson person for OSG web committee (2007-2010)
Strong academic network aimed at sustained innovation
• Invited to be program chair and conference coordinator for ICPE, SIPEW
• Extensively refereed papers (~150) for conferences & journals in the areas of
Performance Analysis and Benchmarking) over 17 years
Education
University of North Carolina Ph.D., Thesis area: Queuing Control, Operations Research, 1991
GPA 4.0/4.0
Virginia Tech M.S., Operations Research, Thesis area: Scheduling, 1988 GPA 4.0/4.0
Indian Inst. of Technology, Bombay B.Tech., Mechanical Engineering, 1986 GPA 8.0/10.0
Work Experience
AMD (2007 - current): Senior Member Technical Staff
Expertise: Performance analysis, Benchmarking, Workload tuning, Tracing of workloads, Big
Data
 Workload Analysis of Big Data and Hadoop workloads: Determined a smaller set
of workloads to trace using hardware usage characteristics, reducing number of
workloads to trace to 1/10tth of what was originally proposed
 Chair of the Cloud Working group at SPEC: Initiated idea to form working group
and lead ~7-10 company representatives to align on metrics for Cloud and cloud
workloads to use in the standard benchmark
 Memcached performance: Formulated new approach (virtualization) to running
Memcached resulting in 4x performance improvement. Identified issues at network
driver level that was impacting maximum utilization of the processors.
 Chairperson of the osgweb sub-committee
o Drove the development of the benchmarks SPECweb2009 and SPECweb2005
point releases
o PHP workload analysis
o Power adaptation of the SPECweb workload
 Appointed as lead AMD representative to SPEC consortium and elected as
Vice-chair of OSG steering committee
 Web Performance Lead at AMD

2. Sun Microsystems (2000-2007): Performance Analysis Staff Engineer
Expertise: Workload Profiling, Analysis and workload definitions for systems
 SPECweb2005 Benchmark design and analysis - Key contributor
o Established novel framework for dynamic web workloads to represent distinct
customer segments
o Directed team efforts to code the PHP scripts for SPECweb2005
 Reviewed and defended Sun's benchmark submissions: Liaised with cross-
functional product and marketing teams in support of ~35-40 web-server and
hardware product launches
 Cluster Analysis of benchmarks and workloads: Pioneered novel methodology
(Principal component based analysis) to enable simplified tuning procedures for
customer support
 Emerging Workloads Definition for Performance Strategic Workgroup: Worked
with cross-functional teams (Engineering, Marketing and Strategy) to identify future
workloads
 Analyzed the performance of SunOne web-server using SES workbench
 Telco Benchmark development: SPECSIP prototyping on FABAN
AT&T Bell Labs/AT&T Labs (1991-2000)
* Network Design and Performance Analysis (1995-2000), Senior Technical Staff Member
Areas of Expertise: Software Architecture and Performance Analysis, Analysis of Java Based
Software, web servers and other custom software, Protocol Analysis.
 Multicasting protocol optimization: Optimized protocols used by AT&T billing
using modeling and evaluation of multicasting protocol to meet stringent reliability
requirements (1 in 10 Billion)
 Performance analysis of Internet services: Designed internal benchmarking process
to determine the performance of Internet phone Service and Texting services
 Webserver performance analysis: Developed novel analytical and simulation model
(US Patent 6789050) to evaluate performance of complex web server models
* Operations Research, (1991-1995), Member of Technical Staff
Areas of Expertise: Inventory Management, Development of optimization models, Credit
Management, Regression Analysis
 Inventory control: Initiated inventory control policies for Business units resulting in
$8-$15 M/yr savings
 Credit management: Designed algorithms that were used by AT&T credit
management to reduce delinquent amounts by $5M+/year.
The University of North Carolina, Department of Operations Research (1988-1991)
 Developed a simulations test bed for IBM’s Data Network
 Developed Routing Algorithms in a Virtual Circuit network.
Publications
 Hariharan, R. Scaling Memcached, paper presentation at VMworld 2011.
 Hariharan, R. and Sun, N., Workload Characterization of SPECweb2005, Proceedings of the
SPEC workshop, January, 2006.

3.  Hariharan, R., and Weber, S., Workload generation method for a Banking
application", published in the proceedings of ISPASS 2003.
 Hariharan, R., Ehrlich, W., Reeser, P., Van-der-mei, R. Modeling the Performance of Web
servers Engaged in Object-Oriented Computing, presented at Plenary session in ITC-2001.
 Reeser, P., Van der mei,. R., and Hariharan R., An Analytic Model of a Web Server, ITC
1999.
 Hariharan, R., Reeser P., and Van der mei R., A Web Server Performance Model,
Telecommunications Systems 16, 2001, pp. 361-37
 Hariharan, R., Mostafa M. and Stidham, S. , Scheduling in a Multi-class Queueing Network,
Invited Paper, QUESTA, vol 24, 1996, pp 83-99.
 Hariharan, R, Kulkarni V, and Stidham, S., Optimal Control of Two Infinite Server Queues,
Proceeding of the 29th Conference on Decision Control, Vol 29, pp 1329-1335.
 Hariharan, R., and Zipkin, P. Customer-Order Information, Leadtimes and Inventories,
Management Science, October 1995.
 Hariharan, R., Kulkarni, V.G. and Stidham, S. Routing to two parallel Infinite Server
Queues, IEEE conference Proceedings, 1990.
 Hariharan, R and Sarin, S, Two Machine bi-criteria Scheduling Problem, International
Journal of Production Economics, vol.. 65. no. 2, pp 125-139, 2000.
Invited Presentations
⇒ Organized an invited session Web Server Performance, at INFORMS, Fall 1999.
⇒ University of North Carolina, Performance Analysis of RMTP, 1996
⇒ University of North Carolina, OR Applications in the Telecomm. Industry, 1993
⇒ Columbia University, Full-Stream Inventory Analysis, 1993
⇒ Organized and invited session on OR in Telecommunication, at INFORMS, 1992.
Organizational and Referee Experience
✤ Program Committee member and Poster Session Chair for ICPE 2011, Karlsruhe, Germany.
✤ Program Committee member of SIPEW workshop, San Jose, CA, 2010
✤ Program and Organizing Committee member for SPEC workshop 2008
✤ ISPASS Program committee member, ISPASS 2005.
✤ Organized an invited session on Web Server Performance, at INFORMS, Fall 1999
✤ Invited referee: Several papers for IEEE conferences and journals on performance, QUESTA
and Management Science
✤ Chair, AT&T Performance Symposium, Middletown, NJ (1998).
✤ Lead Coordinator, Asian American Cultural, Holmdel, NJ (1993).
Other Organizations Experiences
* Secretary and Counselor, Manavi (a South Asian Women’s non-profit organization that tackles
issues related to domestic violence): Counseled women of South Asian origin in domestic
violence situations providing them directions for their future including referrals and translation
help with police, 1993-1998.
* Indian classical music enthusiast; regular volunteer for Indian Fine Arts Organization in
Austin.