To provide more support on debugging of the script, application issues and error logs; LoadRunner has ‘Logging’ option under the ‘Preferences’ tab of Runtime settings. Using this option you can control the printable length of request and response lines to be written in the logs. You can also use this option to disable wrapping of the lines in the log file.
Logging has three options which are:
1. Print buffer line length
2. Print buffer escape for binary zeros only
3. Limit the maximum response size written to the log
This option limits the size of the log containing the response data. The value should be given in KB (kilobytes).