rt-tests: Update the help and man page for --latency

- Update the help and man page for --latency
- Fix some sorting of --latency and --loops

Tested-by: Leah Leshchinsky <lleshchi@redhat.com>
Signed-off-by: John Kacur <jkacur@redhat.com>

2 files changed, 10 insertions, 8 deletions

diff --git a/src/cyclictest/cyclictest.8 b/src/cyclictest/cyclictest.8
index abc56e8..dc0a278 100644
--- a/src/cyclictest/cyclictest.8
+++ b/src/cyclictest/cyclictest.8
@@ -67,9 +67,6 @@ Specify a length for the test run.
 .br
 Append 'm', 'h', or 'd' to specify minutes, hours or days.
 .TP
-.B \-\-latency=PM_Q0S
-write PM_Q0S to /dev/cpu_dma_latency
-.TP
 .B \-F, \-\-fifo=<path>
 Create a named pipe at path and write stats to it
 .TP
@@ -88,12 +85,15 @@ Set the base interval of the thread(s) in microseconds (default is 1000us). This
 .B \-\-json=FILENAME
 Write final results into FILENAME, JSON formatted.
 .TP
-.B \-l, \-\-loops=LOOPS
-Set the number of loops. The default is 0 (endless). This option is useful for automated tests with a given number of test cycles. Cyclictest is stopped once the number of timer intervals has been reached.
-.TP
 .B \-\-laptop
 Save battery when running cyclictest. This will give you poorer realtime results, but will not drain your battery so quickly.
 .TP
+.B \-\-latency=PM_Q0S
+power management latency target value. This value is written to /dev/cpu_dma_latency and affects c-states. The default is 0
+.TP
+.B \-l, \-\-loops=LOOPS
+Set the number of loops. The default is 0 (endless). This option is useful for automated tests with a given number of test cycles. Cyclictest is stopped once the number of timer intervals has been reached.
+.TP
 .B \-\-mainaffinity=CPUSET
 Run the main thread on CPU #N. This only affects the main thread and not the measurement threads
 .TP
diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c
index f8f7dbc..067b753 100644
--- a/src/cyclictest/cyclictest.c
+++ b/src/cyclictest/cyclictest.c
@@ -823,7 +823,6 @@ static void display_help(int error)
 	       "-d DIST  --distance=DIST   distance of thread intervals in us, default=500\n"
 	       "-D       --duration=TIME   specify a length for the test run.\n"
 	       "                           Append 'm', 'h', or 'd' to specify minutes, hours or days.\n"
-	       "	 --latency=PM_QOS  write PM_QOS to /dev/cpu_dma_latency\n"
 	       "-F       --fifo=<path>     create a named pipe at path and write stats to it\n"
 	       "-h       --histogram=US    dump a latency histogram to stdout after the run\n"
 	       "                           US is the max latency time to be tracked in microseconds\n"
@@ -832,10 +831,13 @@ static void display_help(int error)
 	       "	 --histfile=<path> dump the latency histogram to <path> instead of stdout\n"
 	       "-i INTV  --interval=INTV   base interval of thread in us default=1000\n"
 	       "         --json=FILENAME   write final results into FILENAME, JSON formatted\n"
-	       "-l LOOPS --loops=LOOPS     number of loops: default=0(endless)\n"
 	       "	 --laptop	   Save battery when running cyclictest\n"
 	       "			   This will give you poorer realtime results\n"
 	       "			   but will not drain your battery so quickly\n"
+	       "         --latency=PM_QOS  power management latency target value\n"
+	       "                           This value is written to /dev/cpu_dma_latency\n"
+	       "                           and affects c-states. The default is 0\n"
+	       "-l LOOPS --loops=LOOPS     number of loops: default=0(endless)\n"
 	       "         --mainaffinity=CPUSET\n"
 	       "			   Run the main thread on CPU #N. This only affects\n"
 	       "                           the main thread and not the measurement threads\n"