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SPEC SFS97 (2.0) Benchmark

On December 19th, 1997 SPEC introduced its new SFS benchmark: SFS97, the replacement for the previous SFS benchmark formally known as LADDIS or SFS93. SFS97 features:

  • Measures results for both NFS protocol version 3 and version 2.
  • Adds support for TCP; either TCP or UDP can be used as the network transport.
  • Operation mix more closely matches today's real-world NFS workloads.
  • Benchmark distribution CD includes precompiled and tested binaries.

This benchmark has been replaced by SPEC SFS97_R1 V3.0.

Defects Identified in SPEC SFS97 V2.0

June 14, 2001 - The Standard Performance Evaluation Corporation (SPEC) has identified significant defects in its SFS97 benchmark suite. SPEC has suspended sales of the SFS97 benchmark and is no longer accepting new submission of SFS97 results for publication on SPEC's website (

SPEC is advising SFS licensees and users of the SPECsfs97.v2 and SPECsfs97.v3 metrics that several recently uncovered bugs impact the comparability of results. These flaws can impact the amount of work done during the measurement periods and can greatly reduce the expected working set size. SPEC recommends that users not utilize these results for system comparisons without a full understanding of the impact of these defects on each benchmark result.

See the full notice and the technical document detailing the defects.


Submitted Results
Text, HTML3.0, and PostScript outputs for the SFS97 metrics. Includes all of the results submitted to SPEC from licensees of the benchmark.


SPEC SFS97 Press Release Material:
Press Release: The full text of SPEC's press release from announcement day.
Press FAQ: The Q & A prepared by SPEC for the press announcement.

SPEC SFS97 Benchmark Documentation:
FAQ: [ HTML format ]
Frequently Asked (and answered) Questions about SPEC SFS97.
Run and Reporting Rules: [ PDF format | PostScript format ]
The actual rules that govern the running and reporting of this benchmark.
User's Guide: [ PDF format | PostScript format ]
The actual benchmark user guide as distributed on the SPEC SFS97 CD-ROM.
Design And Development Overview Paper: [ PDF format | PostScript format ]

This product is no longer available; it has been superceded by SFS97_R1 (Version 3.0).