docs: uptade tuna.8 man page with option -r

Update tuna.8 man page with the descriptions of the new command line
options:
       -r, --run="COMMAND"
	      Run the COMMAND. If arguments are passed, the entire com‐
	      mand line must be provided inside "quotes". Modifiers  -c
	      and -p can be used to set the affinity and scheduler tun‐
	      ables of the given COMMAND. The arg[0] (i.e. the command)
	      will be set in THREAD-LIST.  Likewise the -t, the COMMAND
	      accepts the prefix + and - as wildcards in  order  to  be
	      appended or removed from THREAD-LIST, respectively.

And the modifications of -p behavior:
       -p, --priority=[POLICY:]RTPRIO
	      Set thread scheduler tunables: POLICY and RTPRIO.  POLICY
	      is one of OTHER, FIFO, RR, or BATCH. If -t is not set, -p
	      will act as a Modifier, saving  the  sched  tunables  for
	      future Actions, for example -r.

And -t behavior:
       -t, --threads=THREAD-LIST
	      THREAD-LIST  affected by commands. Requires a thread num‐
	      ber or thread name, or a comma-separated list  of  thread
	      numbers and/or names. Thread names may contain wildcards.
	      Be sure to quote or escape any  wildcard  specifications.
	      If  only - is passed as argument, the THREAD-LIST will be
	      cleared.

Signed-off-by: Daniel Bristot de Oliveira <daniel@bristot.me>
Signed-off-by: John Kacur <jkacur@redhat.com>
Signed-off-by: Jiri Kastner <jkastner@redhat.com>
1 file changed