Two Minute Drill: RELOG.EXE

Following on from last Two Minute Drill: LOGMAN.EXE, today's topic is the RELOG.EXE utility. RELOG.EXE creates new performance logs from data in existing performance logs by changing the sampling rate and / or converting the file format. RELOG.EXE is not a new tool - it is however one of those tools that most administrators are not aware of. Although RELOG.EXE is a fairly simple tool, it is incredibly powerful. Let's look at the built-in help file for RELOG.EXE:

RELOG <filename [filename ...]> [options]

Parameters:
<filename [filename ...]> Performance file to relog.

Option	Description
-?	Display context sensitive help
-a	Append output to the existing binary file
-c <path>	Counters to filter from the input log
-cf <filename>	File listing performance counters from the input log. The default is all counters in the original log file
-f <CSV \| TSV \| BIN \| SQL>	Output file format
-t <value>	Only write every nth record into the output file
-o	Output file path or SQL database
-b <M/d/yyyy h:mm:ss [AM \| PM>	Begin time for the first record to write into the output file
-e <M/d/yyyy h:mm:ss [AM \| PM>	End time for the last record to write into the output file
-config <filename>	Settings file containing command options
-q	List performance counters in the input file
-y	Answer yes to all questions without prompting