Welcome to the UMass Trace Repository

This trace repository provides network, storage, and other traces to the research community for analysis. We have collected some traces ourselves; others have been kindly donated.

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The trace repository has been hosting research data for the Computer Science Department at UMass Amherst and others for over 20 years. Unless otherwise specified, data on this repository is provided under a CC BY 4.0 license.

Material posted on this website is based upon work supported in part by the National Science Foundation under Grants CNS-323597 and 0325868. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).