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NOTE: Neither the IOTTA TWG nor SNIA vouch for the accuracy or reliability of any of the traces or other information provided below. Please contact us regarding any broken or inaccurate links.

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Traces


System Call Traces

Code File System Traces
Traces of all system call activity on 33 machines collected between February 1991 and March 1993. Full data set is 24 GB, only a subset of it is available on-line. The site also has pointers to the DFSTrace tools that were used to collect this data. [Mummert96] provides extensive information about the design and implementation of the trace tool.

Drew Roselli's Traces
Several months of traces from three different environments, an academic research cluster, an instructional cluster used for student programming assignments, and a web-server. Traces were collected in late 1996 and early 1997. Only a portion of the full set of traces are available on-line. A USENIX paper and UC Berkeley Technical Report describe and analyze the traces [Roselli98] [Roselli00].

Kentucky Traces
Traces from two workstations. One is seven days, the other ten days. The traces were collected circa 1993. The web page describes the traces and gives contact information for requesting the trace data via e-mail. This data was used in [Appleton94].

Mambo Suite
System call traces of several Parallel I/O workloads. [Uysal97]

Seer Traces
Traces collected in 1996-7 on 9 laptops in an CS research environment over periods varying from 1 to 10 months. These traces were described in [Kuenning97].

Sprite Traces
Eight days of traces collected in academic research cluster during 1991. These traces were initially described and analyzed in [Baker91].


Network File System Traces

Berkeley Auspex Traces
One week of NFS traffic from 236 clients accessing an Auspex server in late 1993. They were gathered by Cliff Mather by snooping Ethernet packets on four subnets. The clients are the desktop workstations of the University of California at Berkeley Computer Science Division.

Harvard NFS Traces
Dan Ellard's Harvard Traces Extensive set of NFS traces covering many months. Collected from Campus e-mail server and departmental file server. Contact Dan Ellard (ellard@eecs.harvard.edu) for more information. [Ellard03a] [Ellard03b]


Parallel Traces

Los Alamos National Laboratory (LANL) Traces
LANL has released static file tree data (fsstats), including aggregate information on capacity, file and directory sizes, filename lengths, link counts, etc. The fsstats cover 9 anonymous parallel filesystems ranging from 16 TB to 439 TB total capacity used and file counts range from 2,024,729 to 43,605,555.

Other Data Sets

ECMWF Data Handling Log Traces
Traces from the storage landscape of the European Centre for Medium-Range Weather Forecasts (ECMWF) with over 100 PB of archives. Traces were collected from Jan 1, 2012, to May 20, 2014.

OLTP Application and Search Engine I/O Traces
The UMass trace repository holds several storage traces, including two I/O traces from OLTP applications run at financial institutions, and three I/O traces from a popular search engine.

Plan 9 File System Traces
This is a time series set of "snapshots" of the contents of the Plan 9 file servers at Bell Labs. One snapshot per day for a number of years.


Tools and Documentation

Microsoft Event Tracing (1) (2)

Stonybrook University Dataseries Documentation Wiki

Computer Storage Systems Research Discussion Forum

Traces and Snapshots Public Archive


Storage Research Centers

Carnegie Mellon University
Parallel Data Lab (PDL)

San Diego Supercomputer Center (SDSC)

University of Minnesota
Digital Technology Center (DTC)
Intelligent Storage Consortium (DISC)

Storage Performance Council (SPC)


Papers and Publications

Papers Relating to Traces

[Harter11] Tyler Harter, Chris Dragga, Michael Vaughn, Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau.
A File is Not a File: Understanding the I/O Behavior of Apple Desktop Applications.
Department of Computer Sciences, University of Wisconsin, Madison. 2011.

[Ellard03b] Daniel Ellard, Margo Seltzer.
NFS Tricks and Benchmarking Traps.
Proceedings of the FREENIX Technical Conference, San Antonio, Texas. June, 2003.

[Ellard03a] Daniel Ellard, Jonathan Ledlie, Pia Malkani, Margo Seltzer.
Passive NFS Tracing of Email and Research Workloads.
Proceedings of the Second Annual USENIX File and Storage Technologies Conference, pp. 203-216, San Francisco, CA. March, 2003.

[Roselli00] Drew Roselli, Jacob R. Lorch, Thomas E. Anderson.
A Comparison of File System Workloads.
Proceedings of the 2000 USENIX Technical Conference, pp. 44 - 54. San Diego, CA. June, 2000.

[Vogels99] Werner Vogels.
File system usage in Windows NT 4.0.
Proceedings of the 17th Symposium on Operating System Principles, pp. 93 - 109. Kiawah Island Resort, SC. December, 1999.

[Douceur99] John R. Douceur, William J. Bolosky.
A Large-Scale Study of File-System Contents.
Proceedings of SIGMETRICS '99, pp. 59 - 70. Atlanta, GA. May, 1999.

[Kuenning97] Geoffrey H. Kuenning and Gerald J. Popek.
Automated Hoarding for Mobile Computers.
Proceedings of the 16th ACM Symposium on Operating Systems Principles, St. Malo, France, October 5-8, 1997.

[Uysal97] Mustafa Uysal, Anurag Acharya, Joel Saltz.
Requirements of I/O Systems for Parallel Machines: An Application-driven Study.
Technical Report, CS-TR-3802, University of Maryland, College Park. May 1997.

[Mummert96] L. Mummert, M. Satyanarayanan.
Long Term Distributed File Reference Tracing: Implementation and Experience.
Software - Practice and Experience, Vol. 26, No. 6, pp. 705 - 736. June, 1996.

[Blackwell95] Trevor Blackwell, Jeffrey Harris, Margo Seltzer.
Heuristic Cleaning Algorithms in Log-Structured File Systems.
Proceedings of the 1995 USENIX Technical Conference, pp. 277 - 288. New Orleans, LA. January, 1995.

[Griffioen94] Jim Griffioen, Randy Appleton.
Reducing File System Latency using a Predictive Approach.
Proceedings of the Summer 1994 USENIX Technical Conference, pp. 197 - 207. Boston, MA. June, 1994.

[Chiang93] Chi-ming Chiang, Matt W. Mutka.
Characteristics of User File Usage Patterns.
Systems and Software, Vol. 23, No. 3, pp. 257 - 268. December, 1993.

[Ruemmler93] Chris Ruemmler, John Wilkes.
UNIX Disk Access Patterns.
Proceedings of the Winter 1993 USENIX Technical Conference, pp. 405 - 420. San Diego, CA. January, 1993.

[Ramakrishnan92] K.K. Ramakrishnan, Prabuddha Biswas, Ramakrishna Karedla.
Analysis of File I/O Traces in Commercial Computing Environments.
Proceedings of SIGMETRICS '92, pp. 78 - 90. Newport, RI. June, 1992.

[Roselli98] Drew Roselli, Thomas E. Anderson.
Characteristics of File System Workloads.
University of California Berkeley Computer Science Division Technical Report UCB//CSD-98-1029. 1992.

[Shirriff92] Ken Shirriff, John K. Ousterhout.
A Trace-Driven Analysis of Name and Attribute Caching in a Distributed System.
Proceedings of the Winter 1992 USENIX Technical Conference, pp. 315 - 332. San Francisco, CA. January, 1992.

[Miller91] Ethan L. Miller, Randy H. Katz.
Input/Output Behavior of Supercomputing Applications.
Proceedings of the 1991 Conference on Supercomputing, pp. 567 - 576. Albuquerque, NM. November, 1991.

[Baker91] M. Baker, J. Hartman, M. Kupfer, K. Shirriff, and J. Ousterhout.
Measurements of a Distributed File System.
Proceedings of the 13th ACM Symposium of Operating Systems Principles, pp. 198 - 212. October 1991.

[Bozman91] G.P. Bozman, H.H. Ghannad, E.D. Weinberger.
A trace-driven study of CMS file references.
IBM Journal of Research and Development, Vol. 35, No. 5/6, pp. 815 - 828. September/November, 1991.

[Bennet91] J. Michael Bennet, Michael A. Bauer, David Kinchlea.
Characteristics of Files in NFS Environments.
Proceedings of the 1991 ACM Symposium on Small Systems, pp. 33 - 40. 1991.

[Biswas90] P. Biswas, K.K. Ramakrishnan.
File Access Characterization of VAX/VMS Environments.
Proceedings of the 10th International Conference on Distributed Computing Systems, pp. 227 - 234. Paris, France. May, 1990.

[Floyd86] Rick Floyd.
Short-Term File Reference Patterns in a UNIX Environment.
University of Rochester Computer Science Technical Report #177. March, 1986.

[Ousterhout85] J. Ousterhout, H. Costa, D. Harrison, J. Kunze, M. Kupfer, J. Thompson.
A Trace-Driven Analysis of the UNIX 4.2BSD File System.
Proceedings of the 10th Symposium on Operating System Principles, pp. 15 - 24. Orcas Island, WA. December, 1985.

[Satyanarayanan81] M. Satyanarayanan.
A Study of File Sizes and Functional Lifetimes.
Proceedings of the 8th Symposium on Operating System Principles, pp. 96 - 108. Pacific Grove, CA. December, 1981.

[Smith81] A. J. Smith.
Analysis of Long Term File Reference Patterns for Application to File Migration Algorithms.
IEEE Transactions on Software Engineering, Vol SE-7, No. 4, pp. 403 - 417. July, 1981.

Publications That Cite iotta.snia.org

The following publications cite iotta.snia.org as a source of trace data used in their research. They are organized in reverse chronological order. This list attempts to be comprehensive but is not complete; feel free to contact us to suggest additional entries.


[Yang, 2018]
Zhengyu Yang. Flash-based Storage Management in Cloud Computing Datacenter Infrastructures. PhD thesis, Northeastern University, July 2018.
[Mao et al., 2018]
B. Mao, S. Wu, H. Jiang, Y. Yang, and Z. Xi. EDC: Improving the performance and space efficiency of flash-based storage systems with elastic data compression. IEEE Transactions on Parallel and Distributed Systems, 29(6):1261–1274, June 2018. (doi:10.1109/TPDS.2018.2794966)
[Cai et al., 2018]
Yu Cai, Yixin Luo, Saugata Ghose, Erich F. Haratsch, Ken Mai, and Onur Mutlu. Read disturb errors in MLC NAND flash memory. Technical report, Carnegie Mellon University, May 2018.
[Wang et al., 2018]
Yi Wang, Jiangfan Huang, Jing Yang, and Tao Li. A temperature-aware reliability enhancement strategy for 3d charge-trap flash memory. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, May 2018. (doi:10.1109/TCAD.2018.2808227)
[Ahmadian et al., 2018]
Saba Ahmadian, Onur Mutlu, and Hossein Asadi. ECI-Cache: A high-endurance and cost-efficient I/O caching scheme for virtualized platforms. Proceedings of the ACM on Measurement and Analysis of Computing Systems, 2(1):9:1–9:34, April 2018. (doi:10.1145/3179412)
[Assaf et al., 2018]
Maen M. Al Assaf, Xunfei Jiang, Xiao Qin, Mohamed Abid, Meikang Qiu, and Jifu Zhang. Informed prefetching for distributed multi-level storage systems. Journal of Signal Processing Systems, 90(4):619–640, April 2018. (doi:10.1007/s11265-017-1277-z)
[Chen et al., 2018]
Youmin Chen, Jiwu Sh, Jiaxin Ou, and Youyou Lu. HiNFS: A persistent memory file system with both buffering and direct-access. ACM Transactions on Storage, 14(1):4:1–4:30, April 2018. (doi:10.1145/3204454)
[Ji et al., 2018]
Cheng Ji, Li-Pin Chang, Chao Wu, Liang Shi, and Chun Xue. An I/O scheduling strategy for embedded flash storage devices with mapping cache. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 37(4):756–769, April 2018. (doi:10.1109/TCAD.2017.2729405)
[Wang et al., 2018]
Yi Wang, Mingxu Zhang, Xuan Yang, and Tao Liy. A thermal-aware physical space re-allocation for open-channel SSD with 3-D flash memory. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, April 2018. (doi:10.1109/TCAD.2018.2821442)
[Ho et al., 2018]
Chien-Chung Ho, Yu-Ming Chang, Yuan-Hao Chang, and Tei-Wei Kuo. An SLC-like programming scheme for MLC flash memory. ACM Transactions on Storage, 14(1):11:1–11:26, March 2018. (doi:10.1145/3129257)

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