10.2.4 Output format of the performance tracer log

The output directory is shown below. The file name is prf_message with a number from 01 to 32.

Output type	Output directory
PRF daemon or PRF command PRF output API (CPRF.jar, CPRF.DLL)	%PRFSPOOL%\log\PRF_identifier

The log file to which data is output is switched by using the shift mode. In this mode, log data is always output to the file prf_message01. The log files prf_message02 to prf_message32 are the shift-destination files that are created when a switch occurs.

When a switch occurs, the file prf_message01 is renamed by changing the serial number to a number from 02 to 32 (in order) for which no log file exists. For example, when the first switch occurs, the file prf_message01 is renamed prf_message02. If a log file exists for each serial number, when the next switch occurs, the oldest log file (the file that has the oldest update time) is deleted or renamed.

Output format

date_and_time:message_ID pid tid:message_text

Output items

Item	Description
date_and_time	The date and time when the trace was acquired is output in the format aaa bbb dd hh:mm:ss.sss YYYY.
message_ID	The message ID is output.
pid	The process ID is output.
tid	The thread ID is output.
message_text	The message text, which might include a line feed, is output.