Specify a maximum log file size from 1MB to 2MB. The default is 2MB.
If the log file exceeds the maximum size specified here, it is automatically backed up, and a new file is started. Use the Keep option to specify the maximum number of backed up log files to keep.
Note: For best performance, you should make your log files as small as possible. The tradeoff with small log files is speed versus convenience. For example, there may be times when you want to view the results of a long job -- perhaps one run over several days -- in one log file. In such a case, the diminished performance caused by a large log file may be less important to you than being able to view the file in one chunk.