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The following table lists the empirical distributions of HTTP connection parameters currently available.
The format of the data files is straightforward. Each file contains the cumulative distribution function of some random variable X (e.g., HTTP response size). Column 1 is a value x of this random variable, and column 2 is Pr{X<=x}. A header is also present in each file (lines starting with #).
| Model Parameter | Data Set 1 | Data Set 2 | Data Set 3 | Data Set 4 |
| Request Sizes (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Response Sizes (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Objects Per Page | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Unique TCP Connections Per Page | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Unique Server IP Addresses Per Page | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Think Times (in milliseconds) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Top-Level Objects Request Sizes (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Top-Level Objects Response Sizes (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Embedded Objects Request Sizes (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Embedded Objects Response Sizes (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Request Sizes For Non-Persistent Connections (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Response Sizes For Non-Persistent Connections (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Request/Response Exchanges Per Persistent Connection | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Request Sizes For Persistent Connections (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
| Response Sizes For Persistent Connections (in bytes) | Oct. 1999 | Oct. 2000 | April 2001 | April 2003 |
- Last revised: Tue Aug 5 11:42:59 EDT 2003 by jeffay at cs.unc.edu