/usr/bin/llstat version [unknown] calling Getopt::Std::getopts (version 1.15 [paranoid]),
running under Perl version 5.44.0.

Usage: llstat [-OPTIONS [-MORE_OPTIONS]] [--] [PROGRAM_ARG1 ...]

The following single-character options are accepted:
	With arguments: -i -n -w
	Boolean (without arguments): -c -d -g -h

Options may be merged together.  -- stops processing of options.
Space is not required between options and their arguments.
  [Now continuing due to backward compatibility and excessive paranoia.
   See 'perldoc Getopt::Std' about $Getopt::Std::STANDARD_HELP_VERSION.]
Monitor operation count/rate of a subsystem
Usage:  [-c] [-d] [-g] [-h] [-i <interval>] [-n count] <stats_file>
       stats_file : Lustre 'stats' file to watch
       -i interval: polling period in seconds
       -c         : clear stats file first
       -d         : debug mode
       -g         : graphable output format
       -h         : help, display this information
       -n count   : number of samples printed
example:  -i 1 ost_io (ost.OSS.ost_io.stats)
Use CTRL + C to stop statistics printing
ERROR: Need to specify stats_file