10.2.4 Output format of the performance tracer log
Performance tracer messages are output to the %PRFSPOOL%\log directory.
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.