Parallel Traces

Parallel traces, generally taken from supercomputers, record the system calls made by multiple computers running in parallel.

The following traces are free to download under the terms of the SNIA Trace Data Files Download License. Please note that cookies must be enabled within your browser in order to download traces.
For questions about downloading using a shell script, see Using Shell Scripts, and for more information about downloading using a Windows batch script, see Using Batch Scripts.


Displaying all 4 Traces


Trace Name Details Related Tools Year Recorded Timespan Record Count File Size Actions
HPC I/O System Pattern Traces
Traces related to On server-side file access pattern matching from HAL-Inria. These traces are hosted on Zenodo due to access restrictions.
2018 about 8 hours 39.6 Million 671 MB
Tencent Block Storage
Traces used for the paper OSCA: An Online-Model Based Cache Allocation Scheme in Cloud Block Storage Systems by Yu Zhang, Ping Huang, Ke Zhou, and Hua Wang. In Usenix ATC '20.
2018 9 days 33.6 Billion 198 GB
K5cloud Traces
Traces collected for the paper Analysis of commercial cloud workload and study on how to apply cache methods by Kazuichi Oe(1), Kazutaka Ogihara(1), and Takeo Honda(2), 1: Fujitsu Laboratories Ltd. 2: Fujitsu Software Technologies Ltd. In IEICE CPSY (SWoPP 2018), Kumamoto, Japan (July 2018).
2017-2018 6 months 17.1 Billion 139 GB
Tencent Photo Cache
Traces used for the paper Demystifying Cache Policies for Photo Stores at Scale: A Tencent Case Study by Ke Zhou(1), Si Sun(1), Hua Wang(1), Ping Huang(1,2), Xubin He(2), Rui Lan(3), Wenyan Li(3), Wenjie Liu(2), and Tianming Yang(4). 1: Wuhan National Laboratory for Optoelectronics. 2: Temple University. 3: Tencent, Inc. 4: Huanghuai University. In ICS-2018: The 32nd ACM International Conference on Supercomputing, Beijing China, June 2018.
2016 8 days 5.68 Billion 138 GB

Displaying all 4 Traces

View Historical Traces

WARNING: These traces are over 10 years old! They should not be used for modern research!

The following traces are free to download under the terms of the SNIA Trace Data Files Download License. Please note that cookies must be enabled within your browser in order to download traces.
For questions about downloading using a shell script, see Using Shell Scripts, and for more information about downloading using a Windows batch script, see Using Batch Scripts.

Trace Name Details Actions
Mambo Traces
Traces for seven parallel I/O-intensive application which were run on eight nodes of an IBM SP-2. Used the AIX trace utility to trace I/O-related system calls (open, close, read, write and seek). Some characteristics of these traces have been described in this University of Maryland Technical Report. Due to access restrictions, these traces are externally hosted.
1996 about 1 month 0 Bytes
Sprite Traces
The software for opening these traces no longer functions, so they are currently unreadable. Traces were collected from approximately forty workstations connected to four servers. Further information about the traces is available at the Berkeley site, including documentation, software, and sample code. *Please contact us if you successfully read these traces.
These traces are stored in a binary format, code for processing them can be found here and the OS is here. 1991 5 months 218 MB

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