Standard Performance Evaluation Corporation

"SPEC" redirects here. For other uses, see SPEC (disambiguation).

Standard Performance Evaluation Corporation
Formation	1988
Type	Not-for-profit
Headquarters	Gainesville, Virginia
Membership	Hardware & Software Vendors, Universities, Research Centers
Staff	5
Website	http://www.spec.org

The Standard Performance Evaluation Corporation (SPEC) is a non-profit organization that aims to "produce, establish, maintain and endorse a standardized set" of performance benchmarks for computers.

SPEC was founded in 1988. SPEC benchmarks are widely used to evaluate the performance of computer systems; the test results are published on the SPEC website. Results are sometimes informally referred to as "SPECmarks" or just "SPEC".

Membership

Membership allows:

• Participation in benchmark development
• Participation in review of results
• Benchmark licenses

The list of members is available on SPEC's membership page.

• Sustaining Membership requires dues payment and typically includes hardware or software companies (e.g. Dell, HP, IBM, Oracle, Red Hat).
• SPEC "Associates" pay a reduced fee and typically include Universities.
• SPEC "Supporting Contributors" are invited to participate in development of a single benchmark, and do not pay fees.

The benchmarks aim to test "real-life" situations. There are several benchmarks testing Java scenarios, from simple computation (SPECjbb) to a full system with Java EE, database, disk, and network (SPECjEnterprise). The SPECweb benchmarks test web server performance by performing various types of parallel HTTP requests.

The SPEC CPU suites test CPU performance by measuring the run time of several programs such as the compiler gcc, the chemistry program gamess, and the weather program WRF. The various tasks are equally weighted; no attempt is made to weight them based on their perceived importance. An overall score is based on a geometric mean.

Portability

SPEC benchmarks are written in a platform neutral programming language (usually C, Java or Fortran), and the interested parties may compile the code using whatever compiler they prefer for their platform, but may not change the code. Manufacturers have been known to optimize their compilers to improve performance of the various SPEC benchmarks. SPEC has rules that attempt to limit such optimizations.

Licensing

In order to use a benchmark, a license has to be purchased from SPEC; the costs vary from test to test with a typical range from several hundred to several thousand dollars. This pay-for-license model might seem to be in violation of the GPL as the benchmarks include software such as GCC that is licensed by the GPL. However, the GPL does not require software to be distributed for free, only that recipients be allowed to redistribute any GPLed software that they receive; the license agreement for SPEC specifically exempts items that are under "licenses that require free distribution", and the files themselves are placed in a separate part of the overall software package.

Benchmarks

Current

• SPEC CPU2006, combined performance of CPU, memory and compiler
  • CINT2006 ("SPECint"), testing integer arithmetic, with programs such as compilers, interpreters, word processors, chess programs etc.
  • CFP2006 ("SPECfp"), testing floating point performance, with physical simulations, 3D graphics, image processing, computational chemistry etc.
• SPECjms2007, Java Message Service performance
• SPECweb2005, PHP and/or JSP performance.
• SPECviewperf, performance of an OpenGL 3D graphics system, tested with various rendering tasks from real applications
• SPECapc, performance of several 3D-intensive popular applications on a given system
• SPEC OMP2001 V3.2, for evaluating performance of parallel systems using OpenMP (http://www.openmp.org) applications.
• SPEC MPI2007, for evaluating performance of parallel systems using MPI (Message Passing Interface) applications.
• SPECjvm2008, measuring basic Java performance of a Java Runtime Environment on a wide variety of both client and server systems.
• SPECjEnterprise2010, a multi-tier benchmark for measuring the performance of Java 2 Enterprise Edition (J2EE) technology-based application servers.
• SPECjbb2005, evaluates the performance of server side Java by emulating a three-tier client/server system (with emphasis on the middle tier).
• SPEC MAIL2001, performance of a mail server, testing SMTP and POP protocols
• SPECpower_ssj2008, evaluates the energy efficiency of server systems.
• SPECsfs2008, File server throughput and response time supporting both NFS and CIFS protocol access
• SPECsip_Infrastructure2011, SIP server performance
• SPECvirt_sc2010 ("SPECvirt"), evaluates the performance of datacenter servers used in virtualized server consolidation environments

Future

• SOA: according to SPEC's web site in late 2010, a subcommittee is investigating benchmarks for Service Oriented Architecture (SOA).

Retired

• SPEC CPU2000
• SPEC CPU95
• SPEC CPU92
• SPEC HPC96
• SPEC HPC2002 (no longer available)
• SPECjAppServer2001
• SPECjAppServer2002
• SPECjAppServer2004
• SPECjbb2000
• SPEC SDM91
• SPEC SFS97_R1
• SPECweb96
• SPECweb99
• SPECweb99_SSL
• SPEC JVM98

Culture

SPEC attempts to create an environment where arguments are settled by appeal to notions of technical credibility, representativeness, or the "level playing field". SPEC representatives are typically engineers with expertise in the areas being benchmarked. Benchmarks include "run rules", which describe the conditions of measurement and documentation requirements. Results that are published on SPEC's website undergo a peer review by members' performance engineers.

References

• Kant, Krishna (1992). Introduction to Computer System Performance Evaluation. New York: McGraw-Hill Inc.. pp. 16–17. ISBN 0070335869. 

External links

• Official website
• Official List of SPEC Benchmarks